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0001 # 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
0002 # This file is distributed under the same license as the Digikam Manual package.
0003 # Tommi Nieminen <translator@legisign.org>, 2023.
0004 #
0005 msgid ""
0006 msgstr ""
0007 "Project-Id-Version: Digikam Manual 8.1.0\n"
0008 "Report-Msgid-Bugs-To: \n"
0009 "POT-Creation-Date: 2023-12-02 00:35+0000\n"
0010 "PO-Revision-Date: 2023-05-15 19:16+0300\n"
0011 "Last-Translator: Tommi Nieminen <translator@legisign.org>\n"
0012 "Language-Team: Finnish <kde-i18n-doc@kde.org>\n"
0013 "Language: fi\n"
0014 "MIME-Version: 1.0\n"
0015 "Content-Type: text/plain; charset=UTF-8\n"
0016 "Content-Transfer-Encoding: 8bit\n"
0017 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
0018 "X-Generator: Lokalize 23.04.1\n"
0019 
0020 #: ../../color_management/camera_profiles.rst:1
0021 msgid "Color Management and Camera Profiles"
0022 msgstr "Värinhallinta ja kameraprofiilit"
0023 
0024 #: ../../color_management/camera_profiles.rst:1
0025 msgid ""
0026 "digiKam, documentation, user manual, photo management, open source, free, "
0027 "learn, easy, image editor, color management, icc, profile, camera"
0028 msgstr ""
0029 
0030 #: ../../color_management/camera_profiles.rst:14
0031 msgid "The Camera Profiles"
0032 msgstr "Kameraprofiilit"
0033 
0034 #: ../../color_management/camera_profiles.rst:17
0035 msgid "Using Camera Profile"
0036 msgstr "Kameraprofiilien käyttö"
0037 
0038 #: ../../color_management/camera_profiles.rst:19
0039 msgid ""
0040 "Many excellent professional and amateur photographers save all their images "
0041 "as in-camera JPEGs and work exclusively in the sRGB color space. But if you "
0042 "want to work in a larger color space, or if you want to work with RAW files "
0043 "(even if you output sRGB image files from your RAW files), read on."
0044 msgstr ""
0045 
0046 #: ../../color_management/camera_profiles.rst:21
0047 msgid ""
0048 "If you are reading this manual you probably are shooting RAW images with a "
0049 "digital dSLR and you are hoping that somewhere in the arcane waters of color "
0050 "management lies the answer to how to get a nice picture from your RAW image "
0051 "file. The next thing you need is the right camera profile for developing "
0052 "your RAW image. But first let's answer the question you really might have "
0053 "been asking."
0054 msgstr ""
0055 
0056 #: ../../color_management/camera_profiles.rst:27
0057 msgid "digiKam RAW Preview Using **Embedded JPEG Image**."
0058 msgstr "digiKamin RAW-esikatselu **upotettua JPEG-kuvaa** käyttäen."
0059 
0060 #: ../../color_management/camera_profiles.rst:33
0061 msgid ""
0062 "digiKam RAW Preview Using an Half Sized Demosaiced in 8 bits and "
0063 "**Bilinear** Method."
0064 msgstr ""
0065 
0066 #: ../../color_management/camera_profiles.rst:39
0067 msgid ""
0068 "digiKam RAW Import Tool from Image Editor Loading RAW file Demosaiced in 16-"
0069 "bit and **AHD** method."
0070 msgstr ""
0071 
0072 #: ../../color_management/camera_profiles.rst:41
0073 msgid ""
0074 "Why doesn't the image produced by RAW converters like `Libraw <https://www."
0075 "libraw.org/>`_ look like the embedded preview displayed by digiKam? All "
0076 "digital camera images start out as RAW files, whether or not the camera "
0077 "allows the user the option to save the image as a RAW file. When you ask the "
0078 "camera to save JPEGs instead of RAW files, the camera uses its on-board "
0079 "processor to convert the RAW file to a JPEG. That embedded preview is what "
0080 "your final image would have looked like if you had set your camera to save "
0081 "JPEGs instead of RAW files."
0082 msgstr ""
0083 
0084 #: ../../color_management/camera_profiles.rst:43
0085 msgid ""
0086 "Canon for example offers the user several picture styles - neutral, "
0087 "standard, portrait, landscape, and so forth - that determine what kind of "
0088 "processing will be done to the RAW image file to produce the final image, "
0089 "whether or not the processing is done *in-camera* or later, using the "
0090 "proprietary Canon software. This processing software does give the user "
0091 "additional control, but still manipulates the RAW image file in accordance "
0092 "with the chosen picture style. Most of the Canon picture styles add a heavy "
0093 "S-curve and extra color saturation to give the picture more *pop*. Even if "
0094 "you choose the *neutral* picture style (the Canon picture style that gives "
0095 "you the least modified tonality); and select *less contrast*, *less "
0096 "saturation*, *no noise reduction*, and *no sharpening* in the Cannon RAW "
0097 "development software, you will find, if you know what to look for, that an S-"
0098 "curve and also shadow de-noising has been applied to your image."
0099 msgstr ""
0100 
0101 #: ../../color_management/camera_profiles.rst:45
0102 msgid ""
0103 "Libraw which digiKam uses to convert RAW files to image files doesn't add an "
0104 "S-curve to your image tonality. Libraw gives you the lights and darks that "
0105 "are actually recorded by the camera sensor. Libraw is one of only a handful "
0106 "of RAW developers that actually gives you the *scene-referred* tonality. And "
0107 "the Libraw scene-referred image is flat-looking, because the camera sensor "
0108 "records light linearly, whereas our eyes are constantly interacting with our "
0109 "brain to accommodate dim and bright areas in a scene, meaning our brain to "
0110 "some extent *applies an S-curve* to the scene to enable us to better focus "
0111 "in on the areas of particular interest as we look around."
0112 msgstr ""
0113 
0114 #: ../../color_management/camera_profiles.rst:47
0115 msgid ""
0116 "The embedded JPEG preview looks so much nicer than Libraw's output. What is "
0117 "the value in scene-referred tonality? When you take a picture, presumably "
0118 "you have an idea of what you want the final image to look like. It is much "
0119 "easier to achieve that final image if you don't have to *undo* stuff that "
0120 "has already been done to your image. Once Canon (or Nikon, or Sony, etc.) "
0121 "has applied their proprietary S-curves and shadow de-noising, sharpening, "
0122 "etc. to your image, then your shadows, highlights, edge detail, etc. are "
0123 "already squashed, clipped, chopped, and otherwise altered and mangled. "
0124 "You've thrown information away and you cannot get it back. Especially in the "
0125 "shadows, even with 16-bit images (actually, 12- or 14-bits, depending on the "
0126 "camera, but it's encoded as 16-bits for the computer's convenience), there "
0127 "just isn't that much information to begin with."
0128 msgstr ""
0129 
0130 #: ../../color_management/camera_profiles.rst:53
0131 msgid ""
0132 "digiKam Raw Import Tool from Image Editor Allows to Post Process Exposures "
0133 "and Curves just After the Demosaicing."
0134 msgstr ""
0135 "digiKamin kuvamuokkaimen RAW-tuontityökalu sallii valotuksen ja käyrien "
0136 "jälkikäsittelyn heti mosaiikinpoiston jälkeen."
0137 
0138 #: ../../color_management/camera_profiles.rst:55
0139 msgid ""
0140 "It seems to me that the heart and soul of image processing is the deliberate "
0141 "manipulation of image tonality, color, selective sharpening, and so forth, "
0142 "such that the viewer focuses in on what you, the photographer, found of "
0143 "particular interest when you took the picture. Why give the art of image "
0144 "processing over to some proprietary RAW processing software? In other words, "
0145 "*flat is good* if you'd rather give your images your own artistic "
0146 "interpretation. The alternative is to let the canned, proprietary algorithms "
0147 "produced by Canon, Nikon, Sony, etc. interpret your images for you. On the "
0148 "other hand, there is no denying that for many images, those canned "
0149 "algorithms are really pretty good."
0150 msgstr ""
0151 
0152 #: ../../color_management/camera_profiles.rst:57
0153 msgid ""
0154 "You can see the value in starting my image-editing with a scene-referred "
0155 "rendition instead of the eye-popping rendition that you see in the embedded "
0156 "JPEG. But the images produced by digiKam and Libraw look a little bit "
0157 "different. If the image looks very dark, then you asked Libraw to output a "
0158 "16-bit file and you have run into a problem with Libraw not applying a gamma "
0159 "transform before outputting the image file. You can use the Image Editor to "
0160 "apply the appropriate gamma transform to the image file produced by Libraw. "
0161 "Or you can find or make a camera profile with a gamma of 1."
0162 msgstr ""
0163 
0164 #: ../../color_management/camera_profiles.rst:59
0165 msgid ""
0166 "If your image has pink highlights, check your **White Balance** settings in "
0167 "the RAW Import tool, especially the **highlights** options."
0168 msgstr ""
0169 
0170 #: ../../color_management/camera_profiles.rst:65
0171 msgid ""
0172 "digiKam Raw Import Tool from Image Editor Allows to Tune Many Options about "
0173 "the Camera Colorimetric Values."
0174 msgstr ""
0175 
0176 #: ../../color_management/camera_profiles.rst:67
0177 msgid ""
0178 "If the image isn't dark but it looks really weird, probably you made some "
0179 "injudicious choices in the Raw Import user-interface from Image Editor. The "
0180 "Libraw interface conveniently allows you to *dial in* options. However, "
0181 "convenience always comes at a price. First, the interface might not provide "
0182 "access to all the options. And second, to get the most from the Libraw "
0183 "interface, you have to know what the buttons, sliders, etc. in the interface "
0184 "actually do."
0185 msgstr ""
0186 
0187 #: ../../color_management/camera_profiles.rst:70
0188 msgid "Camera Profile Specificity"
0189 msgstr "Kameraprofiilin tarkkuus"
0190 
0191 #: ../../color_management/camera_profiles.rst:72
0192 msgid ""
0193 "Why are the Canon and Nikon colors better than the colors produced by "
0194 "Libraw? Color rendition is one place where the Canon (and presumably Nikon) "
0195 "proprietary RAW developing software does a really good job."
0196 msgstr ""
0197 "Miksi Canonin ja Nikonin värit ovat paremmat kuin Libraw’n tuottamat? "
0198 "Värintoisto on yksi seikka, jossa Canonin (ja oletettavasti Nikonin) "
0199 "suljettu RAW-kehitysohjelma tekee todella hyvää jälkeä."
0200 
0201 #: ../../color_management/camera_profiles.rst:74
0202 msgid ""
0203 "The proprietary RAW processing software is coupled with camera profiles that "
0204 "are specific to RAW images coming from your make and model of camera, when "
0205 "processed using your make and model camera's proprietary RAW processing "
0206 "software. With digikam's Libraw user interface, you can apply Canon's camera "
0207 "model picture style specific color profile to the Libraw output during the "
0208 "RAW development process, and the colors will still not be exactly the same "
0209 "as what Canon produces."
0210 msgstr ""
0211 
0212 #: ../../color_management/camera_profiles.rst:76
0213 msgid ""
0214 "Digital cameras have an array of millions of little light sensors inside, "
0215 "making up either a CCD or a CMOS chip. These light-sensing pixels are color-"
0216 "blind - they only record the amount, not the color, of light falling on "
0217 "them. So to allow pixels to record color information, each pixel is capped "
0218 "by a transparent red, green, or blue lens, usually alternating in what is "
0219 "called a Bayer array (except for Sigma Faveon sensors, which work "
0220 "differently). A RAW image is nothing more than an array of values indicating "
0221 "*how much light* passed through the red, blue, or green lens cap to reach "
0222 "the sensor."
0223 msgstr ""
0224 
0225 #: ../../color_management/camera_profiles.rst:78
0226 msgid ""
0227 "Clearly, pixel response to light is the result of lots of camera specific "
0228 "factors including: the nature of the sensor array itself, the precise "
0229 "coloring/transmissive qualities of the lens caps, and the particular analog "
0230 "to digital conversion and post-conversion processing that happens inside the "
0231 "camera to produce the RAW image that gets stored on the card."
0232 msgstr ""
0233 
0234 #: ../../color_management/camera_profiles.rst:81
0235 msgid "Analog to Digital Conversion"
0236 msgstr "Muunnos analogisesta digitaaliseksi"
0237 
0238 #: ../../color_management/camera_profiles.rst:83
0239 msgid ""
0240 "*Analog* means continuously varying, like how much water you can put in a "
0241 "glass. *Digitizing* an analog signal means that the continuously changing "
0242 "levels from the analog signal source are *rounded* to discrete quantities "
0243 "convenient to the binary numbers used by computers. The analog to digital "
0244 "conversion that takes place inside the camera is necessary because the light-"
0245 "sensing pixels are analog in nature - they collect a charge proportionate to "
0246 "the amount of light that reaches them."
0247 msgstr ""
0248 
0249 #: ../../color_management/camera_profiles.rst:85
0250 msgid ""
0251 "The accumulated charge on each pixel is then turned into a discrete, digital "
0252 "quantity by the camera's analog to digital converter. Which by the way "
0253 "explains why a 14-bit converter is better than a 12-bit converter - more "
0254 "precision in the conversion output means less information is thrown away in "
0255 "the conversion process."
0256 msgstr ""
0257 
0258 #: ../../color_management/camera_profiles.rst:87
0259 msgid ""
0260 "Especially in pictures taken with low light conditions, a noise is "
0261 "integrated while the analog to digital conversion. digiKam and Libraw "
0262 "interface provides a **Noise Reduction** correction based on wavelets which "
0263 "can be applied while demosaicing."
0264 msgstr ""
0265 
0266 #: ../../color_management/camera_profiles.rst:93
0267 msgid ""
0268 "digiKam Raw Import Tool from Image Editor Allows Wavelets Noise Reduction "
0269 "While Demosaicing."
0270 msgstr ""
0271 "digiKamin kuvamuokkaimen RAW-tuontityökalu sallii kohinan aallokevähennyksen "
0272 "mosaiikinpoiston aikana."
0273 
0274 #: ../../color_management/camera_profiles.rst:96
0275 msgid "Camera Profile and RAW Treatment"
0276 msgstr "Kameraprofiili ja RAW-käsittely"
0277 
0278 #: ../../color_management/camera_profiles.rst:98
0279 msgid ""
0280 "The whole point of interpolation using demosaicing algorithms such as "
0281 "`Libraw <https://www.libraw.org/>`_'s default AHD is to guess what color and "
0282 "intensity of light actually fell on any given pixel by interpolating "
0283 "information gathered from that single pixel plus its neighboring pixels. "
0284 "Every RAW processing program makes additional assumptions such as when is it "
0285 "signal and when is it background noise, or at what point has the sensor well "
0286 "reached full saturation. The resulting output of all these algorithms and "
0287 "assumptions that RAW processing software makes is a trio of RGB values for "
0288 "each pixel in the image. Given the same RAW file, different RAW processors "
0289 "will output different RGB values."
0290 msgstr ""
0291 
0292 #: ../../color_management/camera_profiles.rst:104
0293 msgid ""
0294 "digiKam Raw Import Tool from Image Editor Allow to Tune the Color Profile to "
0295 "Apply While Demosaicing."
0296 msgstr ""
0297 
0298 #: ../../color_management/camera_profiles.rst:107
0299 msgid "Generic Camera Profile"
0300 msgstr "Yleinen kameraprofiili"
0301 
0302 #: ../../color_management/camera_profiles.rst:109
0303 msgid ""
0304 "This website section has information on where to find ready-made camera "
0305 "profiles. If you poke around the digiKam users forum archives, you'll find "
0306 "additional advice. If you keep hunting and experimenting, likely you will "
0307 "find a generic profile that works *well enough*. However, as stated above, "
0308 "it's an unfortunate fact of digital imaging that the camera profiles "
0309 "supplied by Canon, Nikon, and the like don't work as well with RAW "
0310 "converters other than each camera manufacturer's own proprietary RAW "
0311 "converter. Which is why proprietary programs, have to make their own "
0312 "profiles for all the cameras that they support. So eventually you may decide "
0313 "that you want a camera profile that is specific to your camera, your "
0314 "lighting conditions, and your RAW processing workflow."
0315 msgstr ""
0316 
0317 #: ../../color_management/camera_profiles.rst:115
0318 msgid "The Draft of Color Management Logic While a RAW Workflow Processing."
0319 msgstr ""
0320 
0321 #: ../../color_management/camera_profiles.rst:118
0322 msgid "Lighting Conditions and RAW Workflow"
0323 msgstr "Valaistusolosuhteet ja RAW-työnkulku"
0324 
0325 #: ../../color_management/camera_profiles.rst:120
0326 msgid ""
0327 "Many commercial services provide profiling services, for a fee, of course. "
0328 "Or you can use `Argyll <http://www.argyllcms.com/>`_ to profile your camera "
0329 "yourself. If you want to profile your own camera, you will need an `IT8 "
0330 "target <https://en.wikipedia.org/wiki/IT8#Targets>`_, that is, an image "
0331 "containing squares of known colors. Along with the IT8 target, you will "
0332 "receive the appropriate set of known values for each square of color on the "
0333 "target."
0334 msgstr ""
0335 
0336 #: ../../color_management/camera_profiles.rst:122
0337 msgid ""
0338 "If you plan to use Argyll to profile your camera, check the documentation "
0339 "for a list of recommended targets. To profile your camera, you photograph "
0340 "the IT8 target under specified lighting conditions (for example, in "
0341 "daylight, usually taken to mean noon on a sunny day in the summer, with "
0342 "nothing nearby that might cast shadows or reflect color casts) and save the "
0343 "image as a RAW file. Then you process the RAW file using your particular RAW "
0344 "processing software+settings and run the resulting image file through the "
0345 "profiling software. The profiling software compares the RGB values in the "
0346 "image produced by your camera+lighting conditions+RAW processing routine "
0347 "with the RGB values in the original target and then produces your camera "
0348 "(icc) profile."
0349 msgstr ""
0350 
0351 #: ../../color_management/camera_profiles.rst:124
0352 msgid ""
0353 "Profiling a camera is exactly analogous to profiling a monitor. When "
0354 "profiling a monitor, the profiling software tells the graphics card to send "
0355 "squares of color with particular RGB values to the screen. The "
0356 "spectrophotometer measures the actual color that is produced on the screen. "
0357 "When profiling a camera, the known colors are the RGB colors in the original "
0358 "patches on the IT8 target, which the profiling software compares to the "
0359 "colors produced by the digital image of the target, which was photographed "
0360 "in selected lighting conditions, saved as RAW, then processed with specific "
0361 "RAW processing software plus settings."
0362 msgstr ""
0363 
0364 #: ../../color_management/camera_profiles.rst:126
0365 msgid ""
0366 "How to apply a camera profile to the 16-bit image file produced by my open "
0367 "source RAW processing software? If you are using the `Libraw <https://www."
0368 "libraw.org/>`_ interface from digiKam, here is how to tell digiKam which "
0369 "camera profile to use."
0370 msgstr ""
0371 
0372 #: ../../color_management/camera_profiles.rst:132
0373 msgid ""
0374 "The digiKam Batch Queue Manager Raw Converter has also the Same Noise "
0375 "Reduction and Color Profiles Options than Image Editor"
0376 msgstr ""
0377 
0378 #: ../../color_management/camera_profiles.rst:135
0379 msgid "Profiles Point to Real Colors"
0380 msgstr "Profiilit osoittavat oikeisiin väreihin"
0381 
0382 #: ../../color_management/camera_profiles.rst:137
0383 msgid ""
0384 "A color profile describes the color gamut of the device or space to which it "
0385 "belongs by specifying what real color in the real world corresponds to each "
0386 "trio of RGB values in the color space of the device (camera, monitor, "
0387 "printer) or working space."
0388 msgstr ""
0389 
0390 #: ../../color_management/camera_profiles.rst:139
0391 msgid ""
0392 "With a camera profile, for every RGB trio of values associated with every "
0393 "pixel in the image file produced from the RAW file by the RAW processing "
0394 "software, this RGB image file trio corresponds to real color as seen by a "
0395 "real observer in the real world (or rather, as displayed on the IT8 target "
0396 "if you produced your own camera profile, but it amounts to the same thing - "
0397 "the goal of profiling your camera is to make the picture of the target look "
0398 "like the target)."
0399 msgstr ""
0400 
0401 #: ../../color_management/camera_profiles.rst:141
0402 msgid ""
0403 "You cannot see an image by looking at its RGB values. Rather you see an "
0404 "image by displaying it on a monitor or by printing it. When you profile your "
0405 "monitor, you produce a monitor profile which RGB trio of values that the "
0406 "graphics card sends to the screen will produce on the screen with real color "
0407 "as seen by a real observer in the real world."
0408 msgstr ""
0409 
0410 #: ../../color_management/camera_profiles.rst:143
0411 msgid ""
0412 "What the monitor profile and the camera profile have in common is the part "
0413 "about that real color as seen by a real observer in the real world. "
0414 "Different trios of RGB numbers in, respectively, the monitor and camera "
0415 "color spaces point to the same real, visible color in the real world. Real "
0416 "colors in the real world provide the reference point for translating between "
0417 "all the color profiles your image will ever encounter on its way from camera "
0418 "to screen to editing program to print or the web."
0419 msgstr ""
0420 
0421 #: ../../color_management/camera_profiles.rst:145
0422 msgid ""
0423 "Real people don't even see the same colors when they look at the world, do "
0424 "they? A long time ago (1931, although refinements continue to be made), the "
0425 "International Color Consortium decided to map out and mathematically "
0426 "describe all the colors visible to real people in the real world. So they "
0427 "showed a whole bunch of people a whole bunch of colors and asked them to say "
0428 "when this color matched that color, where the two visually matching colors "
0429 "were in fact produced by differing combinations of wavelengths. What was the "
0430 "value of such a strange procedure? Human color perception depends on the "
0431 "fact that we have three types of cone receptors with peak sensitivity to "
0432 "light at wavelengths of approximately 430, 540, and 570 nm, but with "
0433 "considerable overlap in sensitivity between the different cone types. One "
0434 "consequence of how we see color is that many different combinations of "
0435 "differing wavelengths of light will look like the same color."
0436 msgstr ""
0437 
0438 #: ../../color_management/camera_profiles.rst:147
0439 msgid ""
0440 "The ICC produced the `CIE-XYZ color space <https://en.wikipedia.org/wiki/"
0441 "CIE_1931_color_space>`_ s which mathematically describes and models all the "
0442 "`colors visible to an ideal human <https://en.wikipedia.org/wiki/"
0443 "Color_vision>`_ observer (*ideal* in the sense of modeling the tested "
0444 "responses of lots of individual humans). This color space is not a color "
0445 "profile in the normal sense of the word. Rather it provides an absolute "
0446 "**Profile Connecting Space** (PCS) for translating color RGB values from one "
0447 "color space to another."
0448 msgstr ""
0449 
0450 #: ../../color_management/camera_profiles.rst:149
0451 msgid ""
0452 "CIE-XYZ is not the only Profile Connection Space. Another commonly used "
0453 "Profile Connection Space is `CIE-Lab <https://en.wikipedia.org/wiki/"
0454 "Lab_color_space>`_, which is mathematically derived from the CIE-XYZ space. "
0455 "CIE-Lab is intended to be **perceptually uniform**, meaning a change of the "
0456 "same amount in a color value should produce a change of about the same "
0457 "visual importance."
0458 msgstr ""
0459 
0460 #: ../../color_management/camera_profiles.rst:151
0461 msgid ""
0462 "The three coordinates of CIE-Lab represent the lightness of the color (**L = "
0463 "0** yields black and **L = 100** indicates diffuse white; specular white may "
0464 "be higher), its position between red/magenta and green (**a**, negative "
0465 "values indicate green while positive values indicate magenta) and its "
0466 "position between yellow and blue (**b**, negative values indicate blue and "
0467 "positive values indicate yellow)."
0468 msgstr ""
0469 
0470 #: ../../color_management/camera_profiles.rst:153
0471 msgid ""
0472 "To be useful, color profiles need to be coupled with software that performs "
0473 "the translation from one color space to another via the Profile Connection "
0474 "Space. In digiKam, translation from one color space to another usually is "
0475 "done by `Lcms <https://www.littlecms.com/>`_, the **Little Color Management "
0476 "Software**."
0477 msgstr ""