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0001 # 0002 msgid "" 0003 msgstr "" 0004 "Project-Id-Version: Digikam Manual 8.0.0\n" 0005 "Report-Msgid-Bugs-To: \n" 0006 "POT-Creation-Date: 2023-12-02 00:35+0000\n" 0007 "PO-Revision-Date: 2022-12-29 18:31+0100\n" 0008 "Last-Translator: KDE Francophone <kde-francophone@kde.org>\n" 0009 "Language-Team: French <kde-francophone@kde.org>\n" 0010 "Language: fr\n" 0011 "MIME-Version: 1.0\n" 0012 "Content-Type: text/plain; charset=UTF-8\n" 0013 "Content-Transfer-Encoding: 8bit\n" 0014 "Plural-Forms: nplurals=2; plural=(n > 1);\n" 0015 0016 #: ../../image_editor/transform_tools.rst:1 0017 msgid "digiKam Image Editor Transform Tools" 0018 msgstr "" 0019 0020 #: ../../image_editor/transform_tools.rst:1 0021 msgid "" 0022 "digiKam, documentation, user manual, photo management, open source, free, " 0023 "learn, easy" 0024 msgstr "" 0025 0026 #: ../../image_editor/transform_tools.rst:14 0027 msgid "Transform Tools" 0028 msgstr "" 0029 0030 #: ../../image_editor/transform_tools.rst:16 0031 msgid "Contents" 0032 msgstr "" 0033 0034 #: ../../image_editor/transform_tools.rst:19 0035 msgid "Cropping a Photograph" 0036 msgstr "" 0037 0038 #: ../../image_editor/transform_tools.rst:24 0039 msgid "Manual Crop" 0040 msgstr "" 0041 0042 #: ../../image_editor/transform_tools.rst:26 0043 msgid "" 0044 "Cropping a photograph is not only a common operation, but an often " 0045 "underestimated photographer's tool to compose an image. The Image Editor " 0046 "makes it very easy. To crop a photograph simply drag a rectangle over the " 0047 "image by holding down the left mouse button and moving the mouse. You will " 0048 "see a wire frame rectangle appear as you move the mouse." 0049 msgstr "" 0050 0051 #: ../../image_editor/transform_tools.rst:32 0052 msgid "A Region from Image Editor Canvas Ready for Manual Crop" 0053 msgstr "" 0054 0055 #: ../../image_editor/transform_tools.rst:34 0056 msgid "" 0057 "When you release the button the area of the photograph that will be removed " 0058 "by a crop operation is greyed out. This allows you to get a good view of how " 0059 "your photograph will look once you have cropped it. You can change the size " 0060 "of the cropped area by dragging the corners of the rectangle, and you can " 0061 "create a new crop area simply by dragging out another rectangle." 0062 msgstr "" 0063 0064 #: ../../image_editor/transform_tools.rst:36 0065 msgid "" 0066 "Once you are happy with the crop, click on the Image Editor **Crop** button " 0067 "on the toolbar and the photograph will be cropped :kbd:`Ctrl+X`. Use the :" 0068 "menuselection:`File --> Save` or :menuselection:`File --> Save As...` " 0069 "entries in the File menu to save the newly cropped photograph." 0070 msgstr "" 0071 0072 #: ../../image_editor/transform_tools.rst:40 0073 msgid "" 0074 "The Histogram tab from the right sidebar will recompute the color statistics " 0075 "accordingly with the current selection on image." 0076 msgstr "" 0077 0078 #: ../../image_editor/transform_tools.rst:45 0079 msgid "Auto Crop" 0080 msgstr "" 0081 0082 #: ../../image_editor/transform_tools.rst:47 0083 msgid "" 0084 "The Auto Crop tool removes the borders from an image. It searches the " 0085 "largest possible border area that is all the same color, and then crops this " 0086 "area from the image, as if you had used the Crop tool." 0087 msgstr "" 0088 0089 #: ../../image_editor/transform_tools.rst:49 0090 msgid "" 0091 "This tool can be used for example to crop a stitched panorama, assembly with " 0092 "many images, which generate black borders around." 0093 msgstr "" 0094 0095 #: ../../image_editor/transform_tools.rst:51 0096 msgid "See below a stitched Panorama processed with auto crop tool." 0097 msgstr "" 0098 0099 #: ../../image_editor/transform_tools.rst:57 0100 msgid "" 0101 "A Panorama Processed on the Bottom by Auto-Crop to Drop the Black Frame " 0102 "Around the Original Image on the Top." 0103 msgstr "" 0104 0105 #: ../../image_editor/transform_tools.rst:62 0106 msgid "Proportional Crop" 0107 msgstr "" 0108 0109 #: ../../image_editor/transform_tools.rst:64 0110 msgid "" 0111 "The Aspect Ratio Crop tool goes further. While you are editing digital " 0112 "images, it is often necessary to create a compatible format with, for " 0113 "example, your photo album or paper formats. If you print an image from your " 0114 "digital camera and then try to put it in your photo album, you may notice " 0115 "that the camera has a different width or height ratio than a normal " 0116 "photographic film format so you need to crop your digital images in a " 0117 "predefined ratio (for example 5:7 or 2:3 which is a standard photo ratio)." 0118 msgstr "" 0119 0120 #: ../../image_editor/transform_tools.rst:70 0121 msgid "The digiKam Image Editor Ratio Crop Tool" 0122 msgstr "" 0123 0124 #: ../../image_editor/transform_tools.rst:72 0125 msgid "" 0126 "In the preview area you can resize the cropping rectangle by moving the " 0127 "corners with the mouse. It will keep the ratio value set in the bottom of " 0128 "dialog." 0129 msgstr "" 0130 0131 #: ../../image_editor/transform_tools.rst:74 0132 msgid "" 0133 "In the Aspect Ratio Crop tool settings, you specify the **Orientation** as " 0134 "**Portrait** or **Landscape**. Portrait will always have the larger size " 0135 "assigned to the **Height** and Landscape to the **Width**." 0136 msgstr "" 0137 0138 #: ../../image_editor/transform_tools.rst:76 0139 msgid "" 0140 "Aspect Ratio Crop tool uses a relative ratio. That means it is the same if " 0141 "you use centimeters or inches and it doesn't specify the physical size. For " 0142 "example, you can see below a correspondence list of traditional photographic " 0143 "paper sizes and aspect ratio crop." 0144 msgstr "" 0145 0146 #: ../../image_editor/transform_tools.rst:79 0147 msgid "Standard Photograph Paper Size" 0148 msgstr "" 0149 0150 #: ../../image_editor/transform_tools.rst:79 0151 msgid "Aspect Ratio Crop" 0152 msgstr "" 0153 0154 #: ../../image_editor/transform_tools.rst:81 0155 msgid "10x15cm 20x30cm 30x45cm 3.5x5\" 4x6\" 8x12\" 12x18\" 16x24\" 20x30\"" 0156 msgstr "" 0157 0158 #: ../../image_editor/transform_tools.rst:81 0159 msgid "2:3" 0160 msgstr "" 0161 0162 #: ../../image_editor/transform_tools.rst:82 0163 msgid "6x8cm 15x20cm 18x24cm 30x40cm 3.75x5\" 4.5x6\" 6x8\" 7.5x10\" 9x12\"" 0164 msgstr "" 0165 0166 #: ../../image_editor/transform_tools.rst:82 0167 msgid "3:4" 0168 msgstr "" 0169 0170 #: ../../image_editor/transform_tools.rst:83 0171 msgid "20x25cm 40x50cm 8x10\" 16x20\"" 0172 msgstr "" 0173 0174 #: ../../image_editor/transform_tools.rst:83 0175 msgid "4:5" 0176 msgstr "" 0177 0178 #: ../../image_editor/transform_tools.rst:84 0179 msgid "15x21cm 30x42cm 5x7\"" 0180 msgstr "" 0181 0182 #: ../../image_editor/transform_tools.rst:84 0183 msgid "5:7" 0184 msgstr "" 0185 0186 #: ../../image_editor/transform_tools.rst:85 0187 msgid "21x30cm 42x60cm" 0188 msgstr "" 0189 0190 #: ../../image_editor/transform_tools.rst:85 0191 msgid "7:10" 0192 msgstr "" 0193 0194 #: ../../image_editor/transform_tools.rst:88 0195 msgid "" 0196 "At the far right of the dialog two buttons are available to move the crop " 0197 "selection automatically to the horizontal or vertical center of the image." 0198 msgstr "" 0199 0200 #: ../../image_editor/transform_tools.rst:90 0201 msgid "" 0202 "At the very bottom line of the dialog, the **Max. Ratio** button lets you " 0203 "set the crop area size to the maximum size according to the current aspect " 0204 "ratio settings and orientation." 0205 msgstr "" 0206 0207 #: ../../image_editor/transform_tools.rst:94 0208 msgid "" 0209 "The Aspect Ratio Crop tool remembers the settings depending on image " 0210 "orientation (horizontal or vertical). When you use the crop tool next time, " 0211 "these settings will be used as default values depending on the image " 0212 "orientation. The changed image dimensions are stored into the Exif tables so " 0213 "that the Exif data reflects the cropped image and not the original one." 0214 msgstr "" 0215 0216 #: ../../image_editor/transform_tools.rst:99 0217 msgid "Composition Guide" 0218 msgstr "" 0219 0220 #: ../../image_editor/transform_tools.rst:101 0221 msgid "" 0222 "When first looking at an image, the eye of the viewer rarely settles at the " 0223 "center of the image, but moves instead from the top left to the right, and " 0224 "then from the lower left to the right again. This pattern is unconscious but " 0225 "has been well documented. It is probably associated with the western reading " 0226 "pattern. From the photographer's point of view, the goal then becomes to " 0227 "guide the gaze of the viewer to the subject, being aware of the way many " 0228 "people perceive an image." 0229 msgstr "" 0230 0231 #: ../../image_editor/transform_tools.rst:103 0232 msgid "" 0233 "The **Composition Guide** settings provides guiding elements to better " 0234 "compose your images. These guides are:" 0235 msgstr "" 0236 0237 #: ../../image_editor/transform_tools.rst:105 0238 msgid "" 0239 "**Rule of Thirds**: a grid that divides the image into thirds in every " 0240 "direction (that makes for 9 parts). These proportions are close to the " 0241 "golden rule and are derived from the field of view of the human eye. They " 0242 "are often used with slight variations throughout a large number of commonly " 0243 "used objects. Within that frame there are precise areas where the important " 0244 "parts of the image should be placed. The same principle is used to determine " 0245 "the position of the horizon and the proportion of ground to sky. Many " 0246 "photographers and artists are aware of the Rule of Thirds, where an image is " 0247 "divided into three sections vertically and horizontally and the points of " 0248 "intersection represent places to position important visual elements. Moving " 0249 "a horizon in a landscape to the position of one third is often more " 0250 "effective than placing it in the middle, but it could also be placed near " 0251 "the bottom one quarter or sixth. There is nothing obligatory about applying " 0252 "the Rule of Thirds. In placing visual elements for effective composition, " 0253 "one must assess many factors including color, dominance, size and balance " 0254 "together with proportion. Often a certain amount of image balance or tension " 0255 "can make a composition more effective." 0256 msgstr "" 0257 0258 #: ../../image_editor/transform_tools.rst:107 0259 msgid "" 0260 "**Harmonious Triangles**: harmonious divisions rely on the principle of " 0261 "similarity. Like the Rule of Thirds guide, Harmonious Triangles are another " 0262 "division of the image using a rectangle into equiangular harmonious " 0263 "triangles aligned with the diagonal." 0264 msgstr "" 0265 0266 #: ../../image_editor/transform_tools.rst:109 0267 msgid "" 0268 "**Golden Mean**: the Golden Mean is a ratio underlying numerous growth " 0269 "patterns throughout nature (from the spiral of a Nautilus shell to the " 0270 "petals of a sunflower), it has an uncanny way of showing up in all kinds of " 0271 "things we deem beautiful. The Golden Ratio is the irrational number " 0272 "1.618033988..., and it is usage dates back to the ancient Egyptians and " 0273 "Greeks who used it in the construction of their temples and pyramids. " 0274 "Artists and architects throughout time have used the Golden Ratio when " 0275 "composing their paintings, buildings, and even photographs, in order to give " 0276 "their creations a sense of natural order and beauty. The ratio is inherent " 0277 "in the Fibonacci series: 1, 1, 2, 3, 5, 8, 13, 21, 34 etc.., where each " 0278 "succeeding number after 1 is equal to the sum of the two preceding numbers. " 0279 "The ratio formed 1:1.618 is the Golden Mean. A composition following this " 0280 "rule is considered visually harmonious. The Golden Mean provides more fluid " 0281 "guidelines when used to compose an image. These guides are listed below:" 0282 msgstr "" 0283 0284 #: ../../image_editor/transform_tools.rst:111 0285 msgid "" 0286 "The **Golden Spiral** guide will increase your odds of getting captivating " 0287 "results in your photographs. As opposed to Rule of Thirds, the Golden Spiral " 0288 "forms a fluid line for the eye to trace through the image. This style of " 0289 "composition will invite the viewer's gaze into the image along the line of " 0290 "the spiral, creating a more symmetrical visual flow, and an overall " 0291 "compelling viewing experience. See below an image composition example using " 0292 "golden spiral." 0293 msgstr "" 0294 0295 #: ../../image_editor/transform_tools.rst:113 0296 msgid "" 0297 "One more rule is a **Golden Spiral Sections** (or Golden Rectangles). These " 0298 "rectangles are used to build the Golden Spiral. There should be something " 0299 "leading the eye to the center of the composition. It could be a line or " 0300 "several subjects. This \"something\" could just be there without leading the " 0301 "eyes, but it would make its job." 0302 msgstr "" 0303 0304 #: ../../image_editor/transform_tools.rst:115 0305 msgid "" 0306 "The **Golden Triangles** is a derivative of the Golden Spiral discussed " 0307 "above. Its vertices are the midpoints of the sides of the Golden Rectangle. " 0308 "Note that unlike Harmonious Triangles, Golden Triangles aren't equiangular " 0309 "triangles. Placing diagonals along these lines can make an otherwise static " 0310 "subject appear more dynamic. When you use Golden Triangles to break up your " 0311 "frame, you're creating an effect professional photographic experts call " 0312 "Dynamic Symmetry. Try to keep your focal subject on one of the intersecting " 0313 "points, and place other visual information into the triangles you've already " 0314 "divided out. The result will be a very attractive composition you may not " 0315 "have otherwise attained." 0316 msgstr "" 0317 0318 #: ../../image_editor/transform_tools.rst:117 0319 msgid "" 0320 "Like the Rule of Thirds the **Golden Sections** affects the ratio of an " 0321 "image size as well as the placement of the main subjects on the photo. This " 0322 "ratio is close to the 35mm ratio, so you don't need to change the size of " 0323 "the photo in most cases. But you need to consider the composition: the main " 0324 "subject should lie on one of the four lines or four intersections (subject's " 0325 "eye for example). Truthfully speaking, these rules are not the same. Rule of " 0326 "Thirds is a simplified version of the Golden Mean." 0327 msgstr "" 0328 0329 #: ../../image_editor/transform_tools.rst:119 0330 msgid "" 0331 "The **Flip Horizontal** and **Flip Vertical** options can be used to apply " 0332 "flip transformation to the harmonious divisions." 0333 msgstr "" 0334 0335 #: ../../image_editor/transform_tools.rst:121 0336 msgid "" 0337 "The **Color** button lets you set the guidelines color. If you have an high " 0338 "color contrast image, the guidelines may become invisible. By the way, you " 0339 "can adapt the color guide to the current image." 0340 msgstr "" 0341 0342 #: ../../image_editor/transform_tools.rst:126 0343 msgid "Rotating or Flipping" 0344 msgstr "" 0345 0346 #: ../../image_editor/transform_tools.rst:128 0347 msgid "" 0348 "If the photograph shows a wrong orientation you can **Flip** or **Rotate** " 0349 "it to the orientation you would like by using Transform Flip/Rotate tools " 0350 "available in :menuselection:`Transform --> Rotate and Transform --> Flip` " 0351 "menus." 0352 msgstr "" 0353 0354 #: ../../image_editor/transform_tools.rst:130 0355 msgid "" 0356 "With flipping options, you can flip or turn over the image horizontally or " 0357 "vertically like a card deck. With the rotating options, you can rotate the " 0358 "image in 90 degrees steps clockwise. It can be used to change the display " 0359 "mode to Portrait or Landscape. Be aware that this rotation is not lossless " 0360 "when using JPEG format. You also can rotate more accurately to a finer " 0361 "degree by using the Free Rotation tool. You can access it by the :" 0362 "menuselection:`Transform --> Free Rotation` menu entry. See the dedicated " 0363 "Free Rotation section below for more information." 0364 msgstr "" 0365 0366 #: ../../image_editor/transform_tools.rst:135 0367 msgid "Free Rotation" 0368 msgstr "" 0369 0370 #: ../../image_editor/transform_tools.rst:137 0371 msgid "" 0372 "The digiKam Free Rotation is a tool for image rotation by any arbitrary " 0373 "angle." 0374 msgstr "" 0375 0376 #: ../../image_editor/transform_tools.rst:139 0377 msgid "" 0378 "When taking an image it is all too easy to hold the camera not quite " 0379 "perfectly vertical or horizontal, resulting in an image where things are " 0380 "tilted at an angle. The way to fix this with the digiKam Image Editor is to " 0381 "use the Free Rotation tool. Select :menuselection:`Transform --> Free " 0382 "Rotation` and adjust to the target angle." 0383 msgstr "" 0384 0385 #: ../../image_editor/transform_tools.rst:141 0386 msgid "" 0387 "Rotate your image by using the **Angle** slider (value in degrees). Press to " 0388 "**Reset Values** for reset the slider to zero. A rotating effect preview is " 0389 "available on the right side of the dialog. The new target image dimensions " 0390 "in pixels are shown." 0391 msgstr "" 0392 0393 #: ../../image_editor/transform_tools.rst:143 0394 msgid "" 0395 "For better orientation, the Free Rotation tool provides a vertical and " 0396 "horizontal guide. Move the mouse cursor under image preview to display the " 0397 "dashed line guide. Move the cursor to an supposedly vertical or horizontal " 0398 "feature in the image like the sea or a building border and press the left " 0399 "mouse button for freeze the dashed lines position. Now, adjust the angle " 0400 "accordingly with the guide." 0401 msgstr "" 0402 0403 #: ../../image_editor/transform_tools.rst:147 0404 msgid "" 0405 "After rotating the image, you often find that things are better but not " 0406 "quite perfect. One solution is to rotate a bit more, but there is a " 0407 "disadvantage to that approach. Each time you rotate an image, because the " 0408 "rotated pixels don't line up precisely with the original pixels, the image " 0409 "inevitably gets blurred a little bit. For a single rotation, the amount of " 0410 "blurring is quite small, but two rotations cause twice as much blurring as " 0411 "one, and there is no reason to blur things more than you have to. Sure, the " 0412 "guide tool available in the Free Rotation preview can help you to apply " 0413 "correctly at the first time an angle adjustment to an image." 0414 msgstr "" 0415 0416 #: ../../image_editor/transform_tools.rst:153 0417 msgid "The digiKam Image Editor Free Rotation Tool" 0418 msgstr "" 0419 0420 #: ../../image_editor/transform_tools.rst:155 0421 msgid "" 0422 "After you have rotated an image, there will be unpleasant triangular *holes* " 0423 "at the corners. One way to fix them is to crop the image with :menuselection:" 0424 "`Transform --> Crop` Image Editor menu." 0425 msgstr "" 0426 0427 #: ../../image_editor/transform_tools.rst:157 0428 msgid "" 0429 "A more elegant way to crop the rotated image is to use the **Auto-Crop** " 0430 "function. Choose anyone of the following options from the combo-box to your " 0431 "preference:" 0432 msgstr "" 0433 0434 #: ../../image_editor/transform_tools.rst:159 0435 msgid "" 0436 "**Widest area**: This option crops the rotated image to the widest possible " 0437 "(width) rectangular section." 0438 msgstr "" 0439 0440 #: ../../image_editor/transform_tools.rst:161 0441 msgid "" 0442 "**Largest area**: This options crops the rotated image to the biggest " 0443 "surface." 0444 msgstr "" 0445 0446 #: ../../image_editor/transform_tools.rst:163 0447 msgid "" 0448 "Hold the mouse over the combo-box and scroll with the wheel between the two " 0449 "possibilities." 0450 msgstr "" 0451 0452 #: ../../image_editor/transform_tools.rst:165 0453 msgid "" 0454 "The **Anti-aliasing** checkbox will smooth the image a bit after rotation. " 0455 "Please read the warning above." 0456 msgstr "" 0457 0458 #: ../../image_editor/transform_tools.rst:170 0459 msgid "Perspective Adjustment" 0460 msgstr "" 0461 0462 #: ../../image_editor/transform_tools.rst:172 0463 msgid "" 0464 "The digiKam Perspective Adjustment is a tool for adjusting the image's " 0465 "perspective." 0466 msgstr "" 0467 0468 #: ../../image_editor/transform_tools.rst:174 0469 msgid "" 0470 "With this tool you can work on the perspective in a photograph. This is very " 0471 "useful when working with photographs that contain keystone distortion. " 0472 "Keystone distortion occurs when an object is photographed from an angle " 0473 "rather than from a straight-on view. For example, if you take an image of a " 0474 "tall building from ground level, the edges of the building appear to meet " 0475 "each other at the far end. On the other hand you can use this tool to " 0476 "introduce a new perspective that is not a face-on view but to give the image " 0477 "a creative spin." 0478 msgstr "" 0479 0480 #: ../../image_editor/transform_tools.rst:176 0481 msgid "" 0482 "All perspective transformations are performed around a fixed point called " 0483 "the reference point. This point is at the center of the item you are " 0484 "transforming and is displayed by a red circle." 0485 msgstr "" 0486 0487 #: ../../image_editor/transform_tools.rst:178 0488 msgid "" 0489 "To change the perspective, use the square areas at the image corners for " 0490 "dragging. The perspective preview is rendered automatically. On the right of " 0491 "the dialog you'll find a set of information witch help you to control the " 0492 "perspective change:" 0493 msgstr "" 0494 0495 #: ../../image_editor/transform_tools.rst:180 0496 msgid "" 0497 "**New Width**: show the new image width in pixels including the empty area " 0498 "around the image resulting from the geometrical transformation." 0499 msgstr "" 0500 0501 #: ../../image_editor/transform_tools.rst:182 0502 msgid "" 0503 "**New Height**: show the new image height in pixels including the empty area " 0504 "around the image resulting from the geometrical transformation." 0505 msgstr "" 0506 0507 #: ../../image_editor/transform_tools.rst:184 0508 msgid "" 0509 "**Top Left Angle**: show the current angle in degrees at the top left corner " 0510 "of the perspective area." 0511 msgstr "" 0512 0513 #: ../../image_editor/transform_tools.rst:186 0514 msgid "" 0515 "**Top Right Angle**: show the current angle in degrees at the top right " 0516 "corner of the perspective area." 0517 msgstr "" 0518 0519 #: ../../image_editor/transform_tools.rst:188 0520 msgid "" 0521 "**Bottom Left Angle**: show the current angle in degrees at the bottom left " 0522 "corner of the perspective area." 0523 msgstr "" 0524 0525 #: ../../image_editor/transform_tools.rst:190 0526 msgid "" 0527 "**Bottom Right Angle**: show the current angle in degrees at the bottom " 0528 "right corner of the perspective area." 0529 msgstr "" 0530 0531 #: ../../image_editor/transform_tools.rst:194 0532 msgid "" 0533 "After applying the perspective adjustment, the image inevitably gets blurred " 0534 "a little bit. For a single adjustment, the amount of blurring is quite " 0535 "small, but two adjustments cause twice as much blurring as one, and there is " 0536 "no reason to blur things more than you have to." 0537 msgstr "" 0538 0539 #: ../../image_editor/transform_tools.rst:196 0540 msgid "" 0541 "After you have adjusted the perspective of an image there will be unpleasant " 0542 "triangular *holes* at the corners. One way to fix them is to crop the image " 0543 "with :menuselection:`Transform --> Crop` Image Editor menu." 0544 msgstr "" 0545 0546 #: ../../image_editor/transform_tools.rst:202 0547 msgid "The digiKam Image Editor Perspective Tool" 0548 msgstr "" 0549 0550 #: ../../image_editor/transform_tools.rst:207 0551 msgid "Shearing Image" 0552 msgstr "" 0553 0554 #: ../../image_editor/transform_tools.rst:209 0555 msgid "" 0556 "The digiKam Shearing Image is a tool for shearing an image horizontally or " 0557 "vertically." 0558 msgstr "" 0559 0560 #: ../../image_editor/transform_tools.rst:211 0561 msgid "" 0562 "The Shear tool is used to shift one part of an image to one direction and " 0563 "the other part to the opposite direction. For instance, a horizontal " 0564 "shearing will shift the upper part to the right and the lower part to the " 0565 "left. This is not a rotation: the image is distorted. In other words, it " 0566 "will turn a rectangle into a parallelogram. This tool is available from :" 0567 "menuselection:`Transform --> Shear` menu." 0568 msgstr "" 0569 0570 #: ../../image_editor/transform_tools.rst:213 0571 msgid "" 0572 "Shear your image by using the **Horizontal Angle** and **Vertical Angle** " 0573 "sliders (values in degrees). You can shear along either Horizontally and " 0574 "vertically at the same time. Click on the **Reset Values** to reset. A " 0575 "shearing effect preview is shown on the center of dialog window. The new " 0576 "target image dimensions in pixels are displayed at the right side of dialog." 0577 msgstr "" 0578 0579 #: ../../image_editor/transform_tools.rst:215 0580 msgid "" 0581 "To assist you in aligning, the tool provides a vertical and horizontal " 0582 "guide. Move the mouse cursor under image preview for display the dashed " 0583 "lines guide. Move the cursor to an important place in the image like the sea " 0584 "or a building border and press the left mouse button for freeze the dashed " 0585 "lines position. Now, adjust the shear correction according with the guide." 0586 msgstr "" 0587 0588 #: ../../image_editor/transform_tools.rst:219 0589 msgid "" 0590 "After applying a shearing adjustment, the image inevitably gets blurred a " 0591 "little bit. For a single shearing, the amount of blurring is quite small, " 0592 "but two shears cause twice as much blurring as one, and there is no reason " 0593 "to blur things more than you have to." 0594 msgstr "" 0595 0596 #: ../../image_editor/transform_tools.rst:221 0597 msgid "" 0598 "After you have sheared an image, there will be unpleasant triangular \"holes" 0599 "\" at the corners. One way to fix them is to crop the image with :" 0600 "menuselection:`Transform --> Crop` Image Editor menu." 0601 msgstr "" 0602 0603 #: ../../image_editor/transform_tools.rst:227 0604 msgid "The digiKam Image Editor Shear Tool" 0605 msgstr "" 0606 0607 #: ../../image_editor/transform_tools.rst:232 0608 msgid "Changing Image Size" 0609 msgstr "" 0610 0611 #: ../../image_editor/transform_tools.rst:235 0612 #: ../../image_editor/transform_tools.rst:301 0613 msgid "Overview" 0614 msgstr "" 0615 0616 #: ../../image_editor/transform_tools.rst:237 0617 msgid "" 0618 "The digiKam resize Photograph is definitely one of the most advanced tools " 0619 "to increase a photograph's size with minimal loss in image quality." 0620 msgstr "" 0621 0622 #: ../../image_editor/transform_tools.rst:239 0623 msgid "" 0624 "Rescaling an image to make it smaller is easy. The big question is: how can " 0625 "you blow up an image and keep the details sharp? How can one zoom in when " 0626 "the resolution boundary has been reached? How can one reinvent or guess the " 0627 "missing information to fill in the necessarily coarse image after upsizing? " 0628 "Well, the algorithm we use here does an excellent job, try it out and see " 0629 "for yourself." 0630 msgstr "" 0631 0632 #: ../../image_editor/transform_tools.rst:242 0633 msgid "Resizing a Photograph" 0634 msgstr "" 0635 0636 #: ../../image_editor/transform_tools.rst:244 0637 msgid "" 0638 "If the photograph has the wrong size, you can scale it to the size you would " 0639 "like by using Transform Resize tool. Select :menuselection:`Transform --> " 0640 "Resize` and adjust the target values. The Resize tool dialog is available " 0641 "below." 0642 msgstr "" 0643 0644 #: ../../image_editor/transform_tools.rst:250 0645 msgid "The digiKam Image Editor Resize Tool" 0646 msgstr "" 0647 0648 #: ../../image_editor/transform_tools.rst:252 0649 msgid "" 0650 "This image resizing tool uses a standard linear interpolation method to " 0651 "approximate pixels. If you want to up-size a small image with a better " 0652 "quality, try the Blowup tool." 0653 msgstr "" 0654 0655 #: ../../image_editor/transform_tools.rst:255 0656 msgid "Increasing Image Size" 0657 msgstr "" 0658 0659 #: ../../image_editor/transform_tools.rst:257 0660 msgid "" 0661 "Many image editing programs use some kind of interpolation e.g. spline " 0662 "interpolation to scale-up an image. digiKam uses a more sophisticated " 0663 "approach." 0664 msgstr "" 0665 0666 #: ../../image_editor/transform_tools.rst:259 0667 msgid "" 0668 "You have to tell the tool about the resizing you want to do. These settings " 0669 "are available in **New Size** tab and are listed below:" 0670 msgstr "" 0671 0672 #: ../../image_editor/transform_tools.rst:261 0673 msgid "" 0674 "**Maintain Aspect Ratio**: if this option is enabled, setting the new image " 0675 "size will preserve the aspect ratio of the original image." 0676 msgstr "" 0677 0678 #: ../../image_editor/transform_tools.rst:263 0679 msgid "**Width**: the new image width to use for blowing up." 0680 msgstr "" 0681 0682 #: ../../image_editor/transform_tools.rst:265 0683 msgid "**Height**: the new image height to use for blowing up." 0684 msgstr "" 0685 0686 #: ../../image_editor/transform_tools.rst:267 0687 msgid "" 0688 "If you want to set filter parameters for finer adjustments, use **Smoothing " 0689 "Settings** and **Advanced Settings** tabs:" 0690 msgstr "" 0691 0692 #: ../../image_editor/transform_tools.rst:269 0693 msgid "Photograph Resize Smoothing Settings:" 0694 msgstr "" 0695 0696 #: ../../image_editor/transform_tools.rst:271 0697 msgid "" 0698 "**Detail Preservation** p [0, 100]: this controls the preservation of the " 0699 "curvatures (features). A low value forces an equal smoothing across the " 0700 "image, whereas bigger values preferably smooth the homogeneous regions and " 0701 "leaves the details sharper. A value of 0.9 should well preserve details so " 0702 "that no sharpening is required afterwards. Note that **Detail Preservation** " 0703 "must be always inferior to **Anisotropy**." 0704 msgstr "" 0705 0706 #: ../../image_editor/transform_tools.rst:273 0707 msgid "" 0708 "**Anisotropy alpha** [0, 100]: a low value smooths equally in all " 0709 "directions, whereas a value close to 1 smooths in one direction only. If you " 0710 "have film grain or CCD kind of noise a high value will result in wave-like " 0711 "pattern, whereas JPEG artifacts are suited for values close to 1." 0712 msgstr "" 0713 0714 #: ../../image_editor/transform_tools.rst:275 0715 msgid "" 0716 "**Smoothing** [0, 500]: this sets the maximum overall smoothing factor (when " 0717 "p defines the relative smoothing). Set it according to the noise level." 0718 msgstr "" 0719 0720 #: ../../image_editor/transform_tools.rst:277 0721 msgid "" 0722 "**Regularity** [0, 100]: this parameter is concerned with the bigger " 0723 "structures. The bigger this value, the more even the overall smoothing will " 0724 "be. This is necessary when much noise is present since it is then difficult " 0725 "to estimate the geometry. Also if you want to achieve a 'van Gogh' " 0726 "turbulence effect, setting it higher than 3 is recommended." 0727 msgstr "" 0728 0729 #: ../../image_editor/transform_tools.rst:279 0730 msgid "" 0731 "**Filter Iterations**: number of times the blurring algorithm is applied. " 0732 "Usually 1 or 2 is sufficient." 0733 msgstr "" 0734 0735 #: ../../image_editor/transform_tools.rst:281 0736 msgid "Photograph Resize Advanced Settings:" 0737 msgstr "" 0738 0739 #: ../../image_editor/transform_tools.rst:283 0740 msgid "" 0741 "**Angular Step** da [5, 90]: angular integration of the anisotropy alpha. If " 0742 "alpha is chosen small, da should also be chosen small. But beware, small " 0743 "angles result in long runs! Choose it as large as you can accept." 0744 msgstr "" 0745 0746 #: ../../image_editor/transform_tools.rst:285 0747 msgid "" 0748 "**Integral Step** [0.1, 10]: spatial integration step width in terms of " 0749 "pixels. Should remain less than 1 (sub-pixel smoothing) and never be higher " 0750 "than 2." 0751 msgstr "" 0752 0753 #: ../../image_editor/transform_tools.rst:287 0754 msgid "" 0755 "**Use Linear Interpolation**: The gain in quality if you select this option " 0756 "is only marginal and you lose a factor of 2 in speed. Our recommendation is " 0757 "to leave it off." 0758 msgstr "" 0759 0760 #: ../../image_editor/transform_tools.rst:289 0761 msgid "" 0762 "**Save As** and **Load** buttons are used to do just that. Any Blowup " 0763 "Photograph filter settings that you have set can be saved to the filesystem " 0764 "in a text file and loaded later." 0765 msgstr "" 0766 0767 #: ../../image_editor/transform_tools.rst:293 0768 msgid "" 0769 "Resize Photograph is very fast in what it is doing, but it can take a long " 0770 "time to run and cause high CPU load. You may always abort computation by " 0771 "pressing **Cancel** button during rendering." 0772 msgstr "" 0773 0774 #: ../../image_editor/transform_tools.rst:298 0775 msgid "Liquid Rescale" 0776 msgstr "" 0777 0778 #: ../../image_editor/transform_tools.rst:303 0779 msgid "" 0780 "This tool is an Image Editor using the `Seam Carving method <https://en." 0781 "wikipedia.org/wiki/Seam_carving>`_." 0782 msgstr "" 0783 0784 #: ../../image_editor/transform_tools.rst:305 0785 msgid "" 0786 "The Seam Carving procedure aims at resizing pictures non uniformly while " 0787 "preserving their features, i.e. avoiding distortion of the important parts. " 0788 "The tool supports manual feature selection, and can also be used to remove " 0789 "portions of the picture in a consistent way." 0790 msgstr "" 0791 0792 #: ../../image_editor/transform_tools.rst:307 0793 msgid "" 0794 "It works both ways, shrinking and enlarging, and it can use **masks** to " 0795 "select which features of the image should be preserved and which should be " 0796 "discarded." 0797 msgstr "" 0798 0799 #: ../../image_editor/transform_tools.rst:309 0800 msgid "" 0801 "See below a sample image loaded in Liquid Rescale to illustrate the usage of " 0802 "this tool." 0803 msgstr "" 0804 0805 #: ../../image_editor/transform_tools.rst:315 0806 msgid "**Step 1**: A Sample Image Before Resizing Using Liquid Rescale Tool" 0807 msgstr "" 0808 0809 #: ../../image_editor/transform_tools.rst:318 0810 msgid "Target Size" 0811 msgstr "" 0812 0813 #: ../../image_editor/transform_tools.rst:324 0814 msgid "The digiKam Liquid Rescale Tool Size Settings" 0815 msgstr "" 0816 0817 #: ../../image_editor/transform_tools.rst:326 0818 msgid "" 0819 "In this section, it is possible to choose the final size. It is advisable to " 0820 "rescale always in one direction at a time. If both the **width** and the " 0821 "**height** are changed, rescaling is performed by default on the width " 0822 "first, then on the height. You can also **Preserve aspect ratio** from the " 0823 "original image. Dimensions can be set in pixels (**px**) or in **percents**." 0824 msgstr "" 0825 0826 #: ../../image_editor/transform_tools.rst:329 0827 msgid "Rescale Percentage" 0828 msgstr "" 0829 0830 #: ../../image_editor/transform_tools.rst:335 0831 msgid "The digiKam Liquid Rescale Tool Percentage Settings" 0832 msgstr "" 0833 0834 #: ../../image_editor/transform_tools.rst:337 0835 msgid "" 0836 "In this section, you can specify here your desired content-aware rescaling " 0837 "percentage. This option sets the maximum enlargement which will be performed " 0838 "in a single rescale step. When the final size is greater than this, the tool " 0839 "will automatically stop and restart the rescaling as many times as needed. " 0840 "You might need to reduce this value if you have large preservation masks. " 0841 "Note that in this case, the same areas will be affected over and over by the " 0842 "rescaling." 0843 msgstr "" 0844 0845 #: ../../image_editor/transform_tools.rst:340 0846 msgid "The Feature Masks" 0847 msgstr "" 0848 0849 #: ../../image_editor/transform_tools.rst:346 0850 msgid "The digiKam Liquid Rescale Tool Mask Settings" 0851 msgstr "" 0852 0853 #: ../../image_editor/transform_tools.rst:348 0854 msgid "" 0855 "The masks are the easiest way to manually select the features of the image " 0856 "that you want to protect or discard. Turn on the **Add weight masks** option " 0857 "to switch in mask edit mode." 0858 msgstr "" 0859 0860 #: ../../image_editor/transform_tools.rst:350 0861 msgid "" 0862 "To discard portion of image, press the **Suppression weight mask** button " 0863 "and paint the mask over the canvas. The mask is a virtual transparent layer " 0864 "using **Red** color, with 50% opacity to indicate the area to discard." 0865 msgstr "" 0866 0867 #: ../../image_editor/transform_tools.rst:352 0868 msgid "" 0869 "To protect portion of image, press the **Preservation weight mask** button " 0870 "and paint the mask over the canvas. The mask is a virtual transparent layer " 0871 "using **Green** color, with 50% opacity to indicate the area to protect." 0872 msgstr "" 0873 0874 #: ../../image_editor/transform_tools.rst:354 0875 msgid "" 0876 "You can change the **Brush size** to paint masks on the canvas. To change " 0877 "mask regions, use the **Erase mask** button and clean desired portion of " 0878 "masks over the canvas." 0879 msgstr "" 0880 0881 #: ../../image_editor/transform_tools.rst:358 0882 msgid "" 0883 "Object removal is only possible when shrinking. By default, feature discard " 0884 "masks are ignored when enlarging, because in that case the masked areas " 0885 "would be inflated rather then removed. If you actually want to get this " 0886 "effect, you need to unset the corresponding option in the **Advanced " 0887 "Settings** tab." 0888 msgstr "" 0889 0890 #: ../../image_editor/transform_tools.rst:360 0891 msgid "" 0892 "Preservation of features is not possible if enlarging too much, because the " 0893 "inflation process is the exact reverse of the shrinking process, so the " 0894 "maximum amount of pixels you can add to a layer corresponds to the amount of " 0895 "pixels which are not protected. For example, if you have a 1000 pixel wide " 0896 "image and you have marked a 800 pixel wide area for protection, the final " 0897 "width should be less than 1200." 0898 msgstr "" 0899 0900 #: ../../image_editor/transform_tools.rst:362 0901 msgid "" 0902 "See below the sample image where masks have been applied to preserve " 0903 "important areas in green and remove unwanted in red." 0904 msgstr "" 0905 0906 #: ../../image_editor/transform_tools.rst:368 0907 msgid "" 0908 "**Step 2**: Liquid Rescale Preservation and Suppression Masks Applied Over " 0909 "the Sample Image Before Resizing" 0910 msgstr "" 0911 0912 #: ../../image_editor/transform_tools.rst:371 0913 msgid "Energy Function" 0914 msgstr "" 0915 0916 #: ../../image_editor/transform_tools.rst:377 0917 msgid "The digiKam Liquid Rescale Energy Function Settings" 0918 msgstr "" 0919 0920 #: ../../image_editor/transform_tools.rst:379 0921 msgid "" 0922 "In this section, you can choose a gradient function applied while rescaling. " 0923 "This function is used to determine which pixels should be removed or kept. " 0924 "Possible values are listed below:" 0925 msgstr "" 0926 0927 #: ../../image_editor/transform_tools.rst:381 0928 msgid "**Norm of brightness gradient**: norm of the brightness gradient." 0929 msgstr "" 0930 0931 #: ../../image_editor/transform_tools.rst:382 0932 msgid "" 0933 "**Sum of absolute values of brightness gradients**: sum of absolute values " 0934 "of the brightness gradients in both directions." 0935 msgstr "" 0936 0937 #: ../../image_editor/transform_tools.rst:383 0938 msgid "" 0939 "**Absolute value of brightness gradient**: absolute value of the brightness " 0940 "gradient in the direction of the rescaling (this is the default)." 0941 msgstr "" 0942 0943 #: ../../image_editor/transform_tools.rst:384 0944 msgid "**Norm of luma gradient**: norm of the luma gradient." 0945 msgstr "" 0946 0947 #: ../../image_editor/transform_tools.rst:385 0948 msgid "" 0949 "**Sum of absolute values of luma gradients**: sum of absolute values of the " 0950 "luma gradients in both directions." 0951 msgstr "" 0952 0953 #: ../../image_editor/transform_tools.rst:386 0954 msgid "" 0955 "**Absolute value of luma gradient**: absolute value of the luma gradient in " 0956 "the direction of the rescaling." 0957 msgstr "" 0958 0959 #: ../../image_editor/transform_tools.rst:388 0960 msgid "" 0961 "The **Preserve Skin Tones** option allows to preserve pixels whose color is " 0962 "close to a skin tone." 0963 msgstr "" 0964 0965 #: ../../image_editor/transform_tools.rst:391 0966 msgid "Advanced Settings" 0967 msgstr "" 0968 0969 #: ../../image_editor/transform_tools.rst:397 0970 msgid "The digiKam Liquid Rescale Advanced Settings" 0971 msgstr "" 0972 0973 #: ../../image_editor/transform_tools.rst:399 0974 msgid "In this section, you can tune some advanced values to tweak the tool." 0975 msgstr "" 0976 0977 #: ../../image_editor/transform_tools.rst:401 0978 msgid "" 0979 "**Overall rigidity of the seams**: Use this value to give a negative bias to " 0980 "the seams which are not straight. May be useful to prevent distortions in " 0981 "some situations, or to avoid artifacts from pixel skipping (it is better to " 0982 "use low values in such case). This setting applies to the whole selected " 0983 "layer if no rigidity mask is used." 0984 msgstr "" 0985 0986 #: ../../image_editor/transform_tools.rst:405 0987 msgid "" 0988 "The bias is proportional to the difference in the transversal coordinate " 0989 "between each two successive points, elevated to the power of 1.5, and summed " 0990 "up for the whole seam." 0991 msgstr "" 0992 0993 #: ../../image_editor/transform_tools.rst:407 0994 msgid "" 0995 "**Maximum number of transversal steps**: This option lets you choose the " 0996 "maximum transversal step that the pixels in the seams can take. In the " 0997 "standard algorithm, corresponding to the default value step = 1, each pixel " 0998 "in a seam can be shifted by at most one pixel with respect to its neighbors. " 0999 "This implies that the seams can form an angle of at most 45 degrees with " 1000 "respect to their base line. Increasing the step value lets you overcome this " 1001 "limit, but may lead to the introduction of artifacts. In order to balance " 1002 "the situation, you can use the rigidity setting." 1003 msgstr "" 1004 1005 #: ../../image_editor/transform_tools.rst:409 1006 msgid "" 1007 "**Side switch frequency**: During the carving process, at each step the " 1008 "optimal seam to be carved is chosen based on the relevance value for each " 1009 "pixel. However, in the case where two seams are equivalent (which may " 1010 "happen, for instance, when large portions of the image have the same color), " 1011 "the algorithm always chooses the seams from one side. In some cases, this " 1012 "can pose problems, e.g. an object centered in the original image might not " 1013 "be centered in the resulting image. In order to overcome this effect, this " 1014 "setting allows the favored side to be switched automatically during " 1015 "rescaling, at the cost of slightly worse performance." 1016 msgstr "" 1017 1018 #: ../../image_editor/transform_tools.rst:411 1019 msgid "" 1020 "**Resize Order**: Here you can set whether to resize **horizontally first** " 1021 "or **vertically first**." 1022 msgstr "" 1023 1024 #: ../../image_editor/transform_tools.rst:414 1025 msgid "More Details About the Seam Carving Technique" 1026 msgstr "" 1027 1028 #: ../../image_editor/transform_tools.rst:416 1029 msgid "" 1030 "The tool works by finding so-called *seams* over an image, i.e. continuous, " 1031 "zig-zagged lines transversing the image from top to bottom (*vertical* " 1032 "seams), or from left to right (*horizontal* seams). When one such seam, say " 1033 "a vertical one, is removed from an image (the *carving* operation), the " 1034 "width of the image is reduced by one pixel. Removing horizontal seams " 1035 "reduces the height. Iterating such operations (find a seam and remove it), " 1036 "one can reduce the image size at will. Collecting together all the seams " 1037 "which were carved from an image, in their respective order, constitutes what " 1038 "is called a *seams map*." 1039 msgstr "" 1040 1041 #: ../../image_editor/transform_tools.rst:418 1042 msgid "" 1043 "Mirroring the carving process, by inserting additional seams besides the " 1044 "ones which are found by the algorithm, instead of removing them, image " 1045 "enlargement can be obtained, too. The meaning of the seam map is reversed in " 1046 "this case." 1047 msgstr "" 1048 1049 #: ../../image_editor/transform_tools.rst:420 1050 msgid "" 1051 "In order to get good results from this technique, the main issue is finding " 1052 "which are the most suitable seams to carve or to insert. If the aim is " 1053 "simply to change the proportions of the image without affecting too much the " 1054 "content, for example, *good* seams will be those which don't cross important " 1055 "features of the image, and instead pass through a background landscape." 1056 msgstr "" 1057 1058 #: ../../image_editor/transform_tools.rst:422 1059 msgid "" 1060 "By default, the tool tries to find the seams which cross the lowest-contrast " 1061 "areas (how this happens exactly is specified by the energy function " 1062 "settings). Therefore, each pixel of the image is assigned a so-called " 1063 "*energy value*, as the higher the contrast, the higher the energy, and seams " 1064 "are less likely to cross high-energy areas." 1065 msgstr "" 1066 1067 #: ../../image_editor/transform_tools.rst:424 1068 msgid "" 1069 "Since in many cases this simple contrast-based method is not optimal, the " 1070 "energy function can be *biased* by the user, who can decide that some areas " 1071 "should have a higher energy (using a preservation masks) or, on the " 1072 "contrary, that they should have a lower energy (using a suppression mask), " 1073 "and therefore effectively *drive* the seams and the whole process." 1074 msgstr "" 1075 1076 #: ../../image_editor/transform_tools.rst:426 1077 msgid "" 1078 "See below the sample image resized where width have been reduced by 30%. The " 1079 "height still the same. Look like preserved areas are not deformed while " 1080 "operation and the unwanted disappear magically." 1081 msgstr "" 1082 1083 #: ../../image_editor/transform_tools.rst:432 1084 msgid "" 1085 "**Step 3**: The Sample Image Width Finally Reduced With Liquid Rescale Masks " 1086 "Applied" 1087 msgstr ""