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0001 # Lithuanian translations for Digikam Manual package. 0002 # Copyright (C) licensed under the <a href="https://spdx.org/licenses/GFDL-1.2-or-later.html">licensed under the terms of the GNU Free Documentation License 1.2+</a> unless stated otherwise 0003 # This file is distributed under the same license as the Digikam Manual package. 0004 # Automatically generated, 2023. 0005 # 0006 msgid "" 0007 msgstr "" 0008 "Project-Id-Version: Digikam Manual 8.0.0\n" 0009 "Report-Msgid-Bugs-To: \n" 0010 "POT-Creation-Date: 2023-12-02 00:35+0000\n" 0011 "PO-Revision-Date: 2023-01-30 00:50+0000\n" 0012 "Last-Translator: Automatically generated\n" 0013 "Language-Team: none\n" 0014 "Language: lt\n" 0015 "MIME-Version: 1.0\n" 0016 "Content-Type: text/plain; charset=UTF-8\n" 0017 "Content-Transfer-Encoding: 8bit\n" 0018 "Plural-Forms: nplurals=4; plural=(n==1 ? 0 : n%10>=2 && (n%100<10 || n" 0019 "%100>=20) ? 1 : n%10==0 || (n%100>10 && n%100<20) ? 2 : 3);\n" 0020 0021 #: ../../color_management/basis_knowledge.rst:1 0022 msgid "Basis Knowledge about Color Management" 0023 msgstr "" 0024 0025 #: ../../color_management/basis_knowledge.rst:1 0026 msgid "" 0027 "digiKam, documentation, user manual, photo management, open source, free, " 0028 "learn, easy, image editor, color management, icc, profile, basis" 0029 msgstr "" 0030 0031 #: ../../color_management/basis_knowledge.rst:14 0032 msgid "Basis Knowledge" 0033 msgstr "" 0034 0035 #: ../../color_management/basis_knowledge.rst:16 0036 msgid "Contents" 0037 msgstr "" 0038 0039 #: ../../color_management/basis_knowledge.rst:19 0040 msgid "Overview" 0041 msgstr "" 0042 0043 #: ../../color_management/basis_knowledge.rst:21 0044 msgid "" 0045 "The point of a color-managed workflow is to ensure that the colors coming " 0046 "from your camera or scanner have a predictable relationship with the colors " 0047 "you actually photographed or scanned, that the colors displayed on your " 0048 "monitor match the colors coming from your camera or scanner, and that the " 0049 "colors you print or display on the web match the colors you produced in your " 0050 "digital darkroom." 0051 msgstr "" 0052 0053 #: ../../color_management/basis_knowledge.rst:27 0054 msgid "" 0055 "The Overall Scheme of Color Spaces Used in a Color Managed Application as " 0056 "digiKam" 0057 msgstr "" 0058 0059 #: ../../color_management/basis_knowledge.rst:29 0060 msgid "" 0061 "When it comes to color management, everyone wants to know, *which buttons to " 0062 "push to get the wanted results*. Unfortunately, color management of " 0063 "necessity involves making informed choices at every step along the image-" 0064 "processing workflow. The purpose of this section is to provide sufficient " 0065 "background information on color management, along with links to more in-" 0066 "depth information, to enable you to begin to make your own informed " 0067 "decisions, based on your own desired results." 0068 msgstr "" 0069 0070 #: ../../color_management/basis_knowledge.rst:32 0071 msgid "Unrelevant Use-Cases" 0072 msgstr "" 0073 0074 #: ../../color_management/basis_knowledge.rst:34 0075 msgid "" 0076 "If your imaging workflow meets all six criteria listed below, then you don't " 0077 "need to worry about color management:" 0078 msgstr "" 0079 0080 #: ../../color_management/basis_knowledge.rst:36 0081 msgid "" 0082 "You are working at a monitor properly calibrated to the sRGB color space " 0083 "(more about int :ref:`this section <monitor_profiles>` of this manual)." 0084 msgstr "" 0085 0086 #: ../../color_management/basis_knowledge.rst:38 0087 msgid "" 0088 "Your imaging workflow starts with an in-camera-produced JPEG already in the " 0089 "sRGB color space." 0090 msgstr "" 0091 0092 #: ../../color_management/basis_knowledge.rst:40 0093 msgid "You work exclusively in the sRGB color space for editing." 0094 msgstr "" 0095 0096 #: ../../color_management/basis_knowledge.rst:42 0097 msgid "Your printer wants images in the sRGB color space." 0098 msgstr "" 0099 0100 #: ../../color_management/basis_knowledge.rst:44 0101 msgid "Your scanner produces images in the sRGB color space." 0102 msgstr "" 0103 0104 #: ../../color_management/basis_knowledge.rst:46 0105 msgid "" 0106 "Your only other image output is via email or the web, where sRGB is the de " 0107 "facto standard." 0108 msgstr "" 0109 0110 #: ../../color_management/basis_knowledge.rst:49 0111 msgid "Usual Definitions" 0112 msgstr "" 0113 0114 #: ../../color_management/basis_knowledge.rst:51 0115 msgid "" 0116 "What follow is some additional comments and definitions to understand the " 0117 "Color Management:" 0118 msgstr "" 0119 0120 #: ../../color_management/basis_knowledge.rst:53 0121 msgid "" 0122 "**Assign** a profile means change the meaning of the RGB numbers in an image " 0123 "by embedding a new profile without changing the actual RGB numbers " 0124 "associated with each pixel in the image. **Convert** to a profile means " 0125 "embed a new profile, but also change the RGB numbers at the same time so " 0126 "that the meaning of the RGB values - that is, the real-world visible color " 0127 "represented by the trio of RGB numbers associated with each pixel in an " 0128 "image - remains the same before and after the conversion from one space to " 0129 "another." 0130 msgstr "" 0131 0132 #: ../../color_management/basis_knowledge.rst:55 0133 msgid "" 0134 "On the other hand, every time you assign a new working space profile rather " 0135 "than convert to a new working space (except when initially assigning a " 0136 "camera profile to the image file you get from your RAW processing software), " 0137 "the appearance of the image should more or less drastically change (usually " 0138 "for the worse, unless the wrong profile had previously been inadvertently " 0139 "embedded in the image)." 0140 msgstr "" 0141 0142 #: ../../color_management/basis_knowledge.rst:57 0143 msgid "" 0144 "In theory, you should be able to do multiple conversions of an image from " 0145 "one working space to another, and if you are using a color-managed image " 0146 "editor, even though all the RGB numbers in the image will change with each " 0147 "conversion, the image displayed on your screen should look the same. In " 0148 "actual fact, because of rounding errors upon each conversion, not to mention " 0149 "gamut-clipping when going from a larger to a smaller working space, every " 0150 "time you convert from one space to another the image degrades a bit." 0151 msgstr "" 0152 0153 #: ../../color_management/basis_knowledge.rst:59 0154 msgid "" 0155 "**Device-dependent** and **device-independent** profiles: The camera " 0156 "profile, a scanner profile, your monitor's profile, and your printer's color " 0157 "profile are all device-dependent profiles - these profiles only work with " 0158 "the specific device for which they were produced by means of profiling. " 0159 "Working space profiles and the Profile Connection Space are *device-" 0160 "independent*. Once an image file has been translated by Lcms to a device-" 0161 "independent working space, in a sense it no longer matters what device " 0162 "originally produced the image. But as soon as you want to display or print " 0163 "the image, then the device (monitor, printer) used matters a great deal and " 0164 "requires a device-dependent profile." 0165 msgstr "" 0166 0167 #: ../../color_management/basis_knowledge.rst:61 0168 msgid "" 0169 "An **interpolated RAW file** isn't a RAW file. For some reason this simple " 0170 "point causes a lot of confusion. But after a RAW file has been interpolated " 0171 "by RAW processing software and then output as a TIFF or JPEG, the original " 0172 "RAW file is still a RAW file, of course, but the interpolated file is just " 0173 "an image file. It isn't a RAW file." 0174 msgstr "" 0175 0176 #: ../../color_management/basis_knowledge.rst:63 0177 msgid "" 0178 "**Linear** has two related and easily confused definitions. *Linear* can " 0179 "mean that the image tonality reflects the tonality in the original scene as " 0180 "photographed instead of being altered by the application of an S-curve or " 0181 "other means of changing local and global tonality. It can also mean that the " 0182 "gamma transfer curve of the color space is linear. An image can be *linear* " 0183 "in either, both, or neither of these two senses. A RAW image as developed by " 0184 "Libraw is linear in both senses. The same image as developed by Canon's RAW " 0185 "processing software won't be linear in either sense." 0186 msgstr "" 0187 0188 #: ../../color_management/basis_knowledge.rst:65 0189 msgid "" 0190 "**HDR** and **LDR** do not refer to the bit-depth of the image. **High " 0191 "dynamic range** and **Low dynamic range** refer to the total dynamic range " 0192 "encompassed by an image. A regular low dynamic range image, say encompassing " 0193 "a mere 5 *stops* (the average digital camera these days can easily " 0194 "accommodate 8 or 9 stops), can be saved as an 8-, 16-, 32-, or even 64-bit " 0195 "image, depending on your software, but the dynamic range of the image isn't " 0196 "thereby increased. Only the number of discrete steps from the brightest to " 0197 "the darkest tone in the image has changed. Conversely, a 22-stop scene (way " 0198 "beyond the capacity of a consumer-oriented digital camera without using " 0199 "multiple exposures) can be saved as an 8- or 16-bit image, but the resulting " 0200 "image will exhibit extreme banding (that is, it will display extreme banding " 0201 "in any given tonal range that can actually be displayed on a typical monitor " 0202 "at one time) because of the relatively few available discrete tonal steps " 0203 "from the lightest to the darkest tone in the image." 0204 msgstr "" 0205 0206 #: ../../color_management/basis_knowledge.rst:67 0207 msgid "" 0208 "**In-camera produced JPEGs don't need a camera profile**: All JPEGs (or " 0209 "TIFFs) coming straight out of a camera (even if produced by point-and-shoots " 0210 "cameras that don't allow you to save a RAW file) start life inside the " 0211 "camera as a RAW file produced by the camera's Analog to Digital converter. " 0212 "If you save your images as JPEGs, then the processor inside the camera " 0213 "interpolates the RAW file, assigns a camera profile, translates the " 0214 "resulting RGB numbers to a working space (usually **sRGB** but sometimes you " 0215 "can choose **AdobeRGB**, depending on the camera), does the JPEG " 0216 "compression, and stores the JPEG file on your camera card. So JPEGs (or " 0217 "TIFFs) from your camera don't need to be assigned a camera profile which is " 0218 "then translated to a working space. JPEGs from a camera are already in a " 0219 "working space." 0220 msgstr "" 0221 0222 #: ../../color_management/basis_knowledge.rst:69 0223 msgid "" 0224 "**Useful mathematical information**: If you are dealing with Libraw's linear " 0225 "gamma output: Mathematically speaking, when doing a gamma transform you " 0226 "normalize (that is, divide by 256 if you are working with 8-bit values) the " 0227 "RGB numbers and raise the resulting numbers to an appropriate power " 0228 "depending on the respective gammas of the starting and ending color space, " 0229 "then re-normalize the results to a new set of RGB numbers. It's not hard, " 0230 "and very instructive, to do this with a calculator for a few sets of RGB " 0231 "numbers spaced from (0,0,0) to (255,255,255) to see how RGB numbers change " 0232 "from one gamma encoding to another. Lcms does this for you when you ask Lcms " 0233 "to convert from one color space to another." 0234 msgstr "" 0235 0236 #: ../../color_management/basis_knowledge.rst:71 0237 msgid "**Copyrighted and copyleft working spaces**:" 0238 msgstr "" 0239 0240 #: ../../color_management/basis_knowledge.rst:73 0241 msgid "" 0242 "The several variants of **sRGB**. See :ref:`the chapter <monitor_profiles>` " 0243 "dedicated to this color space." 0244 msgstr "" 0245 0246 #: ../../color_management/basis_knowledge.rst:75 0247 msgid "BruceRGB or BestRGB." 0248 msgstr "" 0249 0250 #: ../../color_management/basis_knowledge.rst:77 0251 msgid "" 0252 "The various ECI (`European color initiative <https://en.wikipedia.org/wiki/" 0253 "European_Color_Initiative>`_) working space profiles." 0254 msgstr "" 0255 0256 #: ../../color_management/basis_knowledge.rst:79 0257 msgid "" 0258 "**AdobeRGB**, Adobe **WideGamutRGB**, and Kodak/Adobe **ProPhotoRGB** (Kodak " 0259 "and Adobe ProPhoto are the same, just branded differently) and their non-" 0260 "branded, non-copyrighted counterparts." 0261 msgstr "" 0262 0263 #: ../../color_management/basis_knowledge.rst:85 0264 msgid "" 0265 "digiKam Image Editor Color Space Converter Allows to Switch to Another Color " 0266 "Profile" 0267 msgstr "" 0268 0269 #: ../../color_management/basis_knowledge.rst:87 0270 msgid "" 0271 "And quite a few other working spaces that could be added to this list, are " 0272 "all more or less suitable as working spaces. Which working space you should " 0273 "use depends only and solely on you, on your requirements on the Image Editor " 0274 "with your eventual output intentions (web, fine art print, etc.). However, " 0275 "as a critical aside, if you are using Adobe or other copyrighted working " 0276 "space profiles, these profiles contain copyright information that shows up " 0277 "in your image Exif information." 0278 msgstr "" 0279 0280 #: ../../color_management/basis_knowledge.rst:89 0281 msgid "" 0282 "**Soft Proofing** is a way of previewing on the screen the result to be " 0283 "expected from an output on another device, typically a printer. Soft " 0284 "proofing will show you the difference to be expected before you actually do " 0285 "it (and waste your costly ink). So you can improve your settings without " 0286 "wasting time and money. For more information take a look to the dedicated :" 0287 "ref:`section from this manual <soft_proof>`." 0288 msgstr "" 0289 0290 #: ../../color_management/basis_knowledge.rst:91 0291 msgid "" 0292 "**Rendering intent** refers to the way gamuts are handled when the intended " 0293 "target color space cannot handle the full gamut. For more information take a " 0294 "look to the dedicated :ref:`section from this manual <working_space>`." 0295 msgstr "" 0296 0297 #: ../../color_management/basis_knowledge.rst:94 0298 msgid "Color Space Connections" 0299 msgstr "" 0300 0301 #: ../../color_management/basis_knowledge.rst:96 0302 msgid "" 0303 "The question for each RGB trio of values in the (let us assume) 16-bit TIFF " 0304 "produced by Libraw becomes, what does a particular trio of RGB values for " 0305 "the pixels making up images produced by this particular (make and model) " 0306 "camera really mean in terms of some absolute standard referencing some ideal " 0307 "observer." 0308 msgstr "" 0309 0310 #: ../../color_management/basis_knowledge.rst:98 0311 msgid "" 0312 "This absolute standard referencing an ideal observer is more commonly called " 0313 "a **Profile Connection Space** (PCS). A camera profile is needed to " 0314 "accurately characterize or describe the response of a given camera's pixels " 0315 "to light entering that camera, so that the RGB values in the output file " 0316 "produced by the RAW converter can be translated first into an absolute " 0317 "Profile Connection Space and then from the Profile Connection Space to your " 0318 "chosen working space." 0319 msgstr "" 0320 0321 #: ../../color_management/basis_knowledge.rst:100 0322 msgid "" 0323 "As a very important aside, in digiKam the software used to translate from " 0324 "the camera profile to the Profile Connection Space and from the Profile " 0325 "Connection Space to your chosen working space and eventually to your chosen " 0326 "output space (for printing or perhaps monitor display) is based on `Lcms " 0327 "<https://www.littlecms.com/>`_ (the **Little Color Management** engine). For " 0328 "what it's worth, Lcms does more accurate conversions than Adobe's " 0329 "proprietary color conversion engine. Further, the RAW conversion in digiKam " 0330 "is based on decoding of the proprietary RAW file done by **Libraw**. `This " 0331 "library <https://www.libraw.org/>`_, is a great open-source component as " 0332 "without it we'd all be stuck using the usually Windows or Mac only " 0333 "proprietary software that comes with our digital cameras. The Libraw's " 0334 "interpolation algorithms (not to be confused with the aforementioned " 0335 "decoding of the proprietary RAW file), which are part of digiKam if properly " 0336 "used, produce results equal or superior to commercial, closed source " 0337 "software." 0338 msgstr "" 0339 0340 #: ../../color_management/basis_knowledge.rst:102 0341 msgid "" 0342 "There are two commonly used Profile Connection Spaces - **CIELAB** and " 0343 "**CIEXYZ** (see this `wikipedia Color management section <https://en." 0344 "wikipedia.org/wiki/Color_management#Color_transformation>`_ for details). " 0345 "Lcms uses the camera profile to translate the RGB values from the " 0346 "interpolated RAW file, into the appropriate Profile Connection Space " 0347 "(usually CIEXYZ). A profile connection space is not itself a working space. " 0348 "Rather a **Profile Connection Space** is an absolute reference space used " 0349 "only for translating from one color space to another - think of a **Profile " 0350 "Connection Space** as a **Universal Translator** for all the color profiles " 0351 "that an image might encounter in the course of its journey from camera RAW " 0352 "file to final output:" 0353 msgstr "" 0354 0355 #: ../../color_management/basis_knowledge.rst:104 0356 msgid "" 0357 "Lcms uses the camera profile, also called an **Input profile**, to translate " 0358 "the interpolated Libraw-produced RGB numbers, which only have meaning " 0359 "relative to your (make and model of) camera, to a second set of RGB numbers " 0360 "that only have meaning in the **Profile Connection Space**." 0361 msgstr "" 0362 0363 #: ../../color_management/basis_knowledge.rst:106 0364 msgid "" 0365 "Lcms translates the **Profile Connection Space** RGB numbers to the " 0366 "corresponding numbers in your chosen **Working space** so you can edit your " 0367 "image. And again, these working space numbers only have meaning relative to " 0368 "a given working space. The same red, visually speaking, is represented by " 0369 "different trios of RGB numbers in different working spaces; and if you " 0370 "assign the wrong profile the image will look wrong, slightly wrong or very " 0371 "wrong depending on the differences between the two profiles." 0372 msgstr "" 0373 0374 #: ../../color_management/basis_knowledge.rst:108 0375 msgid "" 0376 "While you are editing your image in your chosen **Working space**, then Lcms " 0377 "should translate all the working space RGB numbers back to the **Profile " 0378 "Connection Space**, and then over to the correct RGB numbers that enable " 0379 "your monitor (your display device) to give you the most accurate possible " 0380 "display representation of your image as it is being edited. This translation " 0381 "for display is done on the fly and you should never even notice it " 0382 "happening, unless it doesn't happen correctly - then the displayed image " 0383 "will look wrong." 0384 msgstr "" 0385 0386 #: ../../color_management/basis_knowledge.rst:110 0387 msgid "" 0388 "When you are satisfied that your edited image is ready to share with the " 0389 "world, Lcms translates the **Working space** RGB numbers back into the " 0390 "**Profile Connection Space** space and out again to a **Printer color " 0391 "space** using a **Printer profile** characterizing your printer/paper " 0392 "combination (if you plan on printing the image) or to sRGB (if you plan on " 0393 "displaying the image on the web or emailing it to friends or perhaps " 0394 "creating a slide-show to play on monitors other than your own)." 0395 msgstr "" 0396 0397 #: ../../color_management/basis_knowledge.rst:112 0398 msgid "" 0399 "To back up a little bit and look at the first color profile an image " 0400 "encounters, that is, the camera profile (see point 1. immediately above) - " 0401 "Libraw can in fact apply your camera profile for you (Libraw uses Lcms " 0402 "internally). But the generating data composed of the interpolated RGB values " 0403 "derived from the camera RAW file, and the application of the camera profile " 0404 "to the interpolated file, are two very distinct and totally separable " 0405 "(separable in theory and practice for Libraw; in theory only for most RAW " 0406 "converters) steps." 0407 msgstr "" 0408 0409 #: ../../color_management/basis_knowledge.rst:115 0410 msgid "Camera Profiles" 0411 msgstr "" 0412 0413 #: ../../color_management/basis_knowledge.rst:117 0414 msgid "" 0415 "This manual section has a bit of information on where to find ready-made " 0416 "camera profiles. It's an unfortunate fact of digital imaging that the camera " 0417 "profiles supplied by Canon, Nikon, and the like don't work as well with RAW " 0418 "converters other than each camera manufacturer's own proprietary RAW " 0419 "converter. They have to make their own profiles for all the cameras that " 0420 "they support - keep this proprietary propensity of your camera manufacturer " 0421 "in mind next time you buy a digital camera." 0422 msgstr "" 0423 0424 #: ../../color_management/basis_knowledge.rst:119 0425 msgid "" 0426 "To finding a camera profile for your camera is to make your own camera " 0427 "profile or have one made for you. There are quite a few commercial services " 0428 "who provide profiling services (for a fee, of course). Or you can use " 0429 "`Argyll <http://www.argyllcms.com/>`_ to profile your camera yourself. We " 0430 "cannot speak about how easy or difficult the process of profiling a camera " 0431 "might be. But we would imagine, knowing how very meticulous the people " 0432 "behind Argyll, and Lcms are about color management, that making your own " 0433 "camera profile is very do-able and very likely the results will be better " 0434 "than any proprietary profile. After all, Canon didn't profile your camera, " 0435 "they just profiled a camera like your." 0436 msgstr "" 0437 0438 #: ../../color_management/basis_knowledge.rst:121 0439 msgid "" 0440 "For more information take a look to the dedicated :ref:`section from this " 0441 "manual <camera_profiles>`." 0442 msgstr "" 0443 0444 #: ../../color_management/basis_knowledge.rst:127 0445 msgid "" 0446 "If your Photograph Include a Color Profile from your Camera digiKam Can show " 0447 "this in Colors Sidebar Tab" 0448 msgstr "" 0449 0450 #: ../../color_management/basis_knowledge.rst:130 0451 msgid "Working Spaces" 0452 msgstr "" 0453 0454 #: ../../color_management/basis_knowledge.rst:132 0455 msgid "" 0456 "So now your RAW file has been interpolated by Libraw and you've obtained a " 0457 "camera profile and used Lcms to apply your camera profile. What does all " 0458 "this mean? The real answer involves a lot of math and color science that " 0459 "goes way over my head and likely yours. The short, practical answer is that " 0460 "neither the camera profile space nor the Profile Connection Space is an " 0461 "appropriate space for image editing." 0462 msgstr "" 0463 0464 #: ../../color_management/basis_knowledge.rst:134 0465 msgid "" 0466 "Your next step is to choose a working space for image editing. Lcms, the " 0467 "color management engine that digiKam uses, perform a double translation. " 0468 "First Lcms uses the camera profile to translate the RGB values of each pixel " 0469 "in the Libraw output image without camera-profile applied into the " 0470 "aforementioned Profile Connection Space. Then it translates the RGB values " 0471 "of each pixel from the Profile Connection Space to your chosen working space." 0472 msgstr "" 0473 0474 #: ../../color_management/basis_knowledge.rst:140 0475 msgid "" 0476 "digiKam Knows Where to Find the Color Profiles Installed on Your System and " 0477 "list Files in Setup Dialog For Selection" 0478 msgstr "" 0479 0480 #: ../../color_management/basis_knowledge.rst:142 0481 msgid "" 0482 "For more information take a look to the dedicated :ref:`section from this " 0483 "manual <working_space>`." 0484 msgstr ""