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0001 # German 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: 2023-01-26 08:03+0100\n" 0012 "Last-Translator: Automatically generated\n" 0013 "Language-Team: none\n" 0014 "Language: de\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=2; plural=(n != 1);\n" 0019 0020 #: ../../color_management/basis_knowledge.rst:1 0021 msgid "Basis Knowledge about Color Management" 0022 msgstr "" 0023 0024 #: ../../color_management/basis_knowledge.rst:1 0025 msgid "" 0026 "digiKam, documentation, user manual, photo management, open source, free, " 0027 "learn, easy, image editor, color management, icc, profile, basis" 0028 msgstr "" 0029 0030 #: ../../color_management/basis_knowledge.rst:14 0031 msgid "Basis Knowledge" 0032 msgstr "" 0033 0034 #: ../../color_management/basis_knowledge.rst:16 0035 msgid "Contents" 0036 msgstr "" 0037 0038 #: ../../color_management/basis_knowledge.rst:19 0039 msgid "Overview" 0040 msgstr "" 0041 0042 #: ../../color_management/basis_knowledge.rst:21 0043 msgid "" 0044 "The point of a color-managed workflow is to ensure that the colors coming " 0045 "from your camera or scanner have a predictable relationship with the colors " 0046 "you actually photographed or scanned, that the colors displayed on your " 0047 "monitor match the colors coming from your camera or scanner, and that the " 0048 "colors you print or display on the web match the colors you produced in your " 0049 "digital darkroom." 0050 msgstr "" 0051 0052 #: ../../color_management/basis_knowledge.rst:27 0053 msgid "" 0054 "The Overall Scheme of Color Spaces Used in a Color Managed Application as " 0055 "digiKam" 0056 msgstr "" 0057 0058 #: ../../color_management/basis_knowledge.rst:29 0059 msgid "" 0060 "When it comes to color management, everyone wants to know, *which buttons to " 0061 "push to get the wanted results*. Unfortunately, color management of " 0062 "necessity involves making informed choices at every step along the image-" 0063 "processing workflow. The purpose of this section is to provide sufficient " 0064 "background information on color management, along with links to more in-" 0065 "depth information, to enable you to begin to make your own informed " 0066 "decisions, based on your own desired results." 0067 msgstr "" 0068 0069 #: ../../color_management/basis_knowledge.rst:32 0070 msgid "Unrelevant Use-Cases" 0071 msgstr "" 0072 0073 #: ../../color_management/basis_knowledge.rst:34 0074 msgid "" 0075 "If your imaging workflow meets all six criteria listed below, then you don't " 0076 "need to worry about color management:" 0077 msgstr "" 0078 0079 #: ../../color_management/basis_knowledge.rst:36 0080 msgid "" 0081 "You are working at a monitor properly calibrated to the sRGB color space " 0082 "(more about int :ref:`this section <monitor_profiles>` of this manual)." 0083 msgstr "" 0084 0085 #: ../../color_management/basis_knowledge.rst:38 0086 msgid "" 0087 "Your imaging workflow starts with an in-camera-produced JPEG already in the " 0088 "sRGB color space." 0089 msgstr "" 0090 0091 #: ../../color_management/basis_knowledge.rst:40 0092 msgid "You work exclusively in the sRGB color space for editing." 0093 msgstr "" 0094 0095 #: ../../color_management/basis_knowledge.rst:42 0096 msgid "Your printer wants images in the sRGB color space." 0097 msgstr "" 0098 0099 #: ../../color_management/basis_knowledge.rst:44 0100 msgid "Your scanner produces images in the sRGB color space." 0101 msgstr "" 0102 0103 #: ../../color_management/basis_knowledge.rst:46 0104 msgid "" 0105 "Your only other image output is via email or the web, where sRGB is the de " 0106 "facto standard." 0107 msgstr "" 0108 0109 #: ../../color_management/basis_knowledge.rst:49 0110 msgid "Usual Definitions" 0111 msgstr "" 0112 0113 #: ../../color_management/basis_knowledge.rst:51 0114 msgid "" 0115 "What follow is some additional comments and definitions to understand the " 0116 "Color Management:" 0117 msgstr "" 0118 0119 #: ../../color_management/basis_knowledge.rst:53 0120 msgid "" 0121 "**Assign** a profile means change the meaning of the RGB numbers in an image " 0122 "by embedding a new profile without changing the actual RGB numbers " 0123 "associated with each pixel in the image. **Convert** to a profile means " 0124 "embed a new profile, but also change the RGB numbers at the same time so " 0125 "that the meaning of the RGB values - that is, the real-world visible color " 0126 "represented by the trio of RGB numbers associated with each pixel in an " 0127 "image - remains the same before and after the conversion from one space to " 0128 "another." 0129 msgstr "" 0130 0131 #: ../../color_management/basis_knowledge.rst:55 0132 msgid "" 0133 "On the other hand, every time you assign a new working space profile rather " 0134 "than convert to a new working space (except when initially assigning a " 0135 "camera profile to the image file you get from your RAW processing software), " 0136 "the appearance of the image should more or less drastically change (usually " 0137 "for the worse, unless the wrong profile had previously been inadvertently " 0138 "embedded in the image)." 0139 msgstr "" 0140 0141 #: ../../color_management/basis_knowledge.rst:57 0142 msgid "" 0143 "In theory, you should be able to do multiple conversions of an image from " 0144 "one working space to another, and if you are using a color-managed image " 0145 "editor, even though all the RGB numbers in the image will change with each " 0146 "conversion, the image displayed on your screen should look the same. In " 0147 "actual fact, because of rounding errors upon each conversion, not to mention " 0148 "gamut-clipping when going from a larger to a smaller working space, every " 0149 "time you convert from one space to another the image degrades a bit." 0150 msgstr "" 0151 0152 #: ../../color_management/basis_knowledge.rst:59 0153 msgid "" 0154 "**Device-dependent** and **device-independent** profiles: The camera " 0155 "profile, a scanner profile, your monitor's profile, and your printer's color " 0156 "profile are all device-dependent profiles - these profiles only work with " 0157 "the specific device for which they were produced by means of profiling. " 0158 "Working space profiles and the Profile Connection Space are *device-" 0159 "independent*. Once an image file has been translated by Lcms to a device-" 0160 "independent working space, in a sense it no longer matters what device " 0161 "originally produced the image. But as soon as you want to display or print " 0162 "the image, then the device (monitor, printer) used matters a great deal and " 0163 "requires a device-dependent profile." 0164 msgstr "" 0165 0166 #: ../../color_management/basis_knowledge.rst:61 0167 msgid "" 0168 "An **interpolated RAW file** isn't a RAW file. For some reason this simple " 0169 "point causes a lot of confusion. But after a RAW file has been interpolated " 0170 "by RAW processing software and then output as a TIFF or JPEG, the original " 0171 "RAW file is still a RAW file, of course, but the interpolated file is just " 0172 "an image file. It isn't a RAW file." 0173 msgstr "" 0174 0175 #: ../../color_management/basis_knowledge.rst:63 0176 msgid "" 0177 "**Linear** has two related and easily confused definitions. *Linear* can " 0178 "mean that the image tonality reflects the tonality in the original scene as " 0179 "photographed instead of being altered by the application of an S-curve or " 0180 "other means of changing local and global tonality. It can also mean that the " 0181 "gamma transfer curve of the color space is linear. An image can be *linear* " 0182 "in either, both, or neither of these two senses. A RAW image as developed by " 0183 "Libraw is linear in both senses. The same image as developed by Canon's RAW " 0184 "processing software won't be linear in either sense." 0185 msgstr "" 0186 0187 #: ../../color_management/basis_knowledge.rst:65 0188 msgid "" 0189 "**HDR** and **LDR** do not refer to the bit-depth of the image. **High " 0190 "dynamic range** and **Low dynamic range** refer to the total dynamic range " 0191 "encompassed by an image. A regular low dynamic range image, say encompassing " 0192 "a mere 5 *stops* (the average digital camera these days can easily " 0193 "accommodate 8 or 9 stops), can be saved as an 8-, 16-, 32-, or even 64-bit " 0194 "image, depending on your software, but the dynamic range of the image isn't " 0195 "thereby increased. Only the number of discrete steps from the brightest to " 0196 "the darkest tone in the image has changed. Conversely, a 22-stop scene (way " 0197 "beyond the capacity of a consumer-oriented digital camera without using " 0198 "multiple exposures) can be saved as an 8- or 16-bit image, but the resulting " 0199 "image will exhibit extreme banding (that is, it will display extreme banding " 0200 "in any given tonal range that can actually be displayed on a typical monitor " 0201 "at one time) because of the relatively few available discrete tonal steps " 0202 "from the lightest to the darkest tone in the image." 0203 msgstr "" 0204 0205 #: ../../color_management/basis_knowledge.rst:67 0206 msgid "" 0207 "**In-camera produced JPEGs don't need a camera profile**: All JPEGs (or " 0208 "TIFFs) coming straight out of a camera (even if produced by point-and-shoots " 0209 "cameras that don't allow you to save a RAW file) start life inside the " 0210 "camera as a RAW file produced by the camera's Analog to Digital converter. " 0211 "If you save your images as JPEGs, then the processor inside the camera " 0212 "interpolates the RAW file, assigns a camera profile, translates the " 0213 "resulting RGB numbers to a working space (usually **sRGB** but sometimes you " 0214 "can choose **AdobeRGB**, depending on the camera), does the JPEG " 0215 "compression, and stores the JPEG file on your camera card. So JPEGs (or " 0216 "TIFFs) from your camera don't need to be assigned a camera profile which is " 0217 "then translated to a working space. JPEGs from a camera are already in a " 0218 "working space." 0219 msgstr "" 0220 0221 #: ../../color_management/basis_knowledge.rst:69 0222 msgid "" 0223 "**Useful mathematical information**: If you are dealing with Libraw's linear " 0224 "gamma output: Mathematically speaking, when doing a gamma transform you " 0225 "normalize (that is, divide by 256 if you are working with 8-bit values) the " 0226 "RGB numbers and raise the resulting numbers to an appropriate power " 0227 "depending on the respective gammas of the starting and ending color space, " 0228 "then re-normalize the results to a new set of RGB numbers. It's not hard, " 0229 "and very instructive, to do this with a calculator for a few sets of RGB " 0230 "numbers spaced from (0,0,0) to (255,255,255) to see how RGB numbers change " 0231 "from one gamma encoding to another. Lcms does this for you when you ask Lcms " 0232 "to convert from one color space to another." 0233 msgstr "" 0234 0235 #: ../../color_management/basis_knowledge.rst:71 0236 msgid "**Copyrighted and copyleft working spaces**:" 0237 msgstr "" 0238 0239 #: ../../color_management/basis_knowledge.rst:73 0240 msgid "" 0241 "The several variants of **sRGB**. See :ref:`the chapter <monitor_profiles>` " 0242 "dedicated to this color space." 0243 msgstr "" 0244 0245 #: ../../color_management/basis_knowledge.rst:75 0246 msgid "BruceRGB or BestRGB." 0247 msgstr "" 0248 0249 #: ../../color_management/basis_knowledge.rst:77 0250 msgid "" 0251 "The various ECI (`European color initiative <https://en.wikipedia.org/wiki/" 0252 "European_Color_Initiative>`_) working space profiles." 0253 msgstr "" 0254 0255 #: ../../color_management/basis_knowledge.rst:79 0256 msgid "" 0257 "**AdobeRGB**, Adobe **WideGamutRGB**, and Kodak/Adobe **ProPhotoRGB** (Kodak " 0258 "and Adobe ProPhoto are the same, just branded differently) and their non-" 0259 "branded, non-copyrighted counterparts." 0260 msgstr "" 0261 0262 #: ../../color_management/basis_knowledge.rst:85 0263 msgid "" 0264 "digiKam Image Editor Color Space Converter Allows to Switch to Another Color " 0265 "Profile" 0266 msgstr "" 0267 0268 #: ../../color_management/basis_knowledge.rst:87 0269 msgid "" 0270 "And quite a few other working spaces that could be added to this list, are " 0271 "all more or less suitable as working spaces. Which working space you should " 0272 "use depends only and solely on you, on your requirements on the Image Editor " 0273 "with your eventual output intentions (web, fine art print, etc.). However, " 0274 "as a critical aside, if you are using Adobe or other copyrighted working " 0275 "space profiles, these profiles contain copyright information that shows up " 0276 "in your image Exif information." 0277 msgstr "" 0278 0279 #: ../../color_management/basis_knowledge.rst:89 0280 msgid "" 0281 "**Soft Proofing** is a way of previewing on the screen the result to be " 0282 "expected from an output on another device, typically a printer. Soft " 0283 "proofing will show you the difference to be expected before you actually do " 0284 "it (and waste your costly ink). So you can improve your settings without " 0285 "wasting time and money. For more information take a look to the dedicated :" 0286 "ref:`section from this manual <soft_proof>`." 0287 msgstr "" 0288 0289 #: ../../color_management/basis_knowledge.rst:91 0290 msgid "" 0291 "**Rendering intent** refers to the way gamuts are handled when the intended " 0292 "target color space cannot handle the full gamut. For more information take a " 0293 "look to the dedicated :ref:`section from this manual <working_space>`." 0294 msgstr "" 0295 0296 #: ../../color_management/basis_knowledge.rst:94 0297 msgid "Color Space Connections" 0298 msgstr "" 0299 0300 #: ../../color_management/basis_knowledge.rst:96 0301 msgid "" 0302 "The question for each RGB trio of values in the (let us assume) 16-bit TIFF " 0303 "produced by Libraw becomes, what does a particular trio of RGB values for " 0304 "the pixels making up images produced by this particular (make and model) " 0305 "camera really mean in terms of some absolute standard referencing some ideal " 0306 "observer." 0307 msgstr "" 0308 0309 #: ../../color_management/basis_knowledge.rst:98 0310 msgid "" 0311 "This absolute standard referencing an ideal observer is more commonly called " 0312 "a **Profile Connection Space** (PCS). A camera profile is needed to " 0313 "accurately characterize or describe the response of a given camera's pixels " 0314 "to light entering that camera, so that the RGB values in the output file " 0315 "produced by the RAW converter can be translated first into an absolute " 0316 "Profile Connection Space and then from the Profile Connection Space to your " 0317 "chosen working space." 0318 msgstr "" 0319 0320 #: ../../color_management/basis_knowledge.rst:100 0321 msgid "" 0322 "As a very important aside, in digiKam the software used to translate from " 0323 "the camera profile to the Profile Connection Space and from the Profile " 0324 "Connection Space to your chosen working space and eventually to your chosen " 0325 "output space (for printing or perhaps monitor display) is based on `Lcms " 0326 "<https://www.littlecms.com/>`_ (the **Little Color Management** engine). For " 0327 "what it's worth, Lcms does more accurate conversions than Adobe's " 0328 "proprietary color conversion engine. Further, the RAW conversion in digiKam " 0329 "is based on decoding of the proprietary RAW file done by **Libraw**. `This " 0330 "library <https://www.libraw.org/>`_, is a great open-source component as " 0331 "without it we'd all be stuck using the usually Windows or Mac only " 0332 "proprietary software that comes with our digital cameras. The Libraw's " 0333 "interpolation algorithms (not to be confused with the aforementioned " 0334 "decoding of the proprietary RAW file), which are part of digiKam if properly " 0335 "used, produce results equal or superior to commercial, closed source " 0336 "software." 0337 msgstr "" 0338 0339 #: ../../color_management/basis_knowledge.rst:102 0340 msgid "" 0341 "There are two commonly used Profile Connection Spaces - **CIELAB** and " 0342 "**CIEXYZ** (see this `wikipedia Color management section <https://en." 0343 "wikipedia.org/wiki/Color_management#Color_transformation>`_ for details). " 0344 "Lcms uses the camera profile to translate the RGB values from the " 0345 "interpolated RAW file, into the appropriate Profile Connection Space " 0346 "(usually CIEXYZ). A profile connection space is not itself a working space. " 0347 "Rather a **Profile Connection Space** is an absolute reference space used " 0348 "only for translating from one color space to another - think of a **Profile " 0349 "Connection Space** as a **Universal Translator** for all the color profiles " 0350 "that an image might encounter in the course of its journey from camera RAW " 0351 "file to final output:" 0352 msgstr "" 0353 0354 #: ../../color_management/basis_knowledge.rst:104 0355 msgid "" 0356 "Lcms uses the camera profile, also called an **Input profile**, to translate " 0357 "the interpolated Libraw-produced RGB numbers, which only have meaning " 0358 "relative to your (make and model of) camera, to a second set of RGB numbers " 0359 "that only have meaning in the **Profile Connection Space**." 0360 msgstr "" 0361 0362 #: ../../color_management/basis_knowledge.rst:106 0363 msgid "" 0364 "Lcms translates the **Profile Connection Space** RGB numbers to the " 0365 "corresponding numbers in your chosen **Working space** so you can edit your " 0366 "image. And again, these working space numbers only have meaning relative to " 0367 "a given working space. The same red, visually speaking, is represented by " 0368 "different trios of RGB numbers in different working spaces; and if you " 0369 "assign the wrong profile the image will look wrong, slightly wrong or very " 0370 "wrong depending on the differences between the two profiles." 0371 msgstr "" 0372 0373 #: ../../color_management/basis_knowledge.rst:108 0374 msgid "" 0375 "While you are editing your image in your chosen **Working space**, then Lcms " 0376 "should translate all the working space RGB numbers back to the **Profile " 0377 "Connection Space**, and then over to the correct RGB numbers that enable " 0378 "your monitor (your display device) to give you the most accurate possible " 0379 "display representation of your image as it is being edited. This translation " 0380 "for display is done on the fly and you should never even notice it " 0381 "happening, unless it doesn't happen correctly - then the displayed image " 0382 "will look wrong." 0383 msgstr "" 0384 0385 #: ../../color_management/basis_knowledge.rst:110 0386 msgid "" 0387 "When you are satisfied that your edited image is ready to share with the " 0388 "world, Lcms translates the **Working space** RGB numbers back into the " 0389 "**Profile Connection Space** space and out again to a **Printer color " 0390 "space** using a **Printer profile** characterizing your printer/paper " 0391 "combination (if you plan on printing the image) or to sRGB (if you plan on " 0392 "displaying the image on the web or emailing it to friends or perhaps " 0393 "creating a slide-show to play on monitors other than your own)." 0394 msgstr "" 0395 0396 #: ../../color_management/basis_knowledge.rst:112 0397 msgid "" 0398 "To back up a little bit and look at the first color profile an image " 0399 "encounters, that is, the camera profile (see point 1. immediately above) - " 0400 "Libraw can in fact apply your camera profile for you (Libraw uses Lcms " 0401 "internally). But the generating data composed of the interpolated RGB values " 0402 "derived from the camera RAW file, and the application of the camera profile " 0403 "to the interpolated file, are two very distinct and totally separable " 0404 "(separable in theory and practice for Libraw; in theory only for most RAW " 0405 "converters) steps." 0406 msgstr "" 0407 0408 #: ../../color_management/basis_knowledge.rst:115 0409 msgid "Camera Profiles" 0410 msgstr "" 0411 0412 #: ../../color_management/basis_knowledge.rst:117 0413 msgid "" 0414 "This manual section has a bit of information on where to find ready-made " 0415 "camera profiles. It's an unfortunate fact of digital imaging that the camera " 0416 "profiles supplied by Canon, Nikon, and the like don't work as well with RAW " 0417 "converters other than each camera manufacturer's own proprietary RAW " 0418 "converter. They have to make their own profiles for all the cameras that " 0419 "they support - keep this proprietary propensity of your camera manufacturer " 0420 "in mind next time you buy a digital camera." 0421 msgstr "" 0422 0423 #: ../../color_management/basis_knowledge.rst:119 0424 msgid "" 0425 "To finding a camera profile for your camera is to make your own camera " 0426 "profile or have one made for you. There are quite a few commercial services " 0427 "who provide profiling services (for a fee, of course). Or you can use " 0428 "`Argyll <http://www.argyllcms.com/>`_ to profile your camera yourself. We " 0429 "cannot speak about how easy or difficult the process of profiling a camera " 0430 "might be. But we would imagine, knowing how very meticulous the people " 0431 "behind Argyll, and Lcms are about color management, that making your own " 0432 "camera profile is very do-able and very likely the results will be better " 0433 "than any proprietary profile. After all, Canon didn't profile your camera, " 0434 "they just profiled a camera like your." 0435 msgstr "" 0436 0437 #: ../../color_management/basis_knowledge.rst:121 0438 msgid "" 0439 "For more information take a look to the dedicated :ref:`section from this " 0440 "manual <camera_profiles>`." 0441 msgstr "" 0442 0443 #: ../../color_management/basis_knowledge.rst:127 0444 msgid "" 0445 "If your Photograph Include a Color Profile from your Camera digiKam Can show " 0446 "this in Colors Sidebar Tab" 0447 msgstr "" 0448 0449 #: ../../color_management/basis_knowledge.rst:130 0450 msgid "Working Spaces" 0451 msgstr "" 0452 0453 #: ../../color_management/basis_knowledge.rst:132 0454 msgid "" 0455 "So now your RAW file has been interpolated by Libraw and you've obtained a " 0456 "camera profile and used Lcms to apply your camera profile. What does all " 0457 "this mean? The real answer involves a lot of math and color science that " 0458 "goes way over my head and likely yours. The short, practical answer is that " 0459 "neither the camera profile space nor the Profile Connection Space is an " 0460 "appropriate space for image editing." 0461 msgstr "" 0462 0463 #: ../../color_management/basis_knowledge.rst:134 0464 msgid "" 0465 "Your next step is to choose a working space for image editing. Lcms, the " 0466 "color management engine that digiKam uses, perform a double translation. " 0467 "First Lcms uses the camera profile to translate the RGB values of each pixel " 0468 "in the Libraw output image without camera-profile applied into the " 0469 "aforementioned Profile Connection Space. Then it translates the RGB values " 0470 "of each pixel from the Profile Connection Space to your chosen working space." 0471 msgstr "" 0472 0473 #: ../../color_management/basis_knowledge.rst:140 0474 msgid "" 0475 "digiKam Knows Where to Find the Color Profiles Installed on Your System and " 0476 "list Files in Setup Dialog For Selection" 0477 msgstr "" 0478 0479 #: ../../color_management/basis_knowledge.rst:142 0480 msgid "" 0481 "For more information take a look to the dedicated :ref:`section from this " 0482 "manual <working_space>`." 0483 msgstr ""