e635030650
* Added support for non-raw files to the film negative tool. The tool is now under the "Color" tab. Moved the entire filmneg code downstream, right after input profile conversion. Usage changes a bit: White Balance must be set to the _backlight_ color temperature. Added two more sliders to color-balance the picture after negative inversion. Legacy inversion method kept for compatibility with processing profiles saved by RT v5.7 or 5.8 (only if Film Negative was enabled). Should be removed in a future version. There is still an issue with DCP profiles that need the look table to be active to work properly. Using a simple matrix input profile (or just camera standard) is recommended for now. * The user can now choose to perform inversion before or after input colorspace conversion. Seamless backwards compatibility with previous processing profiles; upgrading from a previous version now gives an (almost) identical output as before. Generalised the concept of film base values: the processing profile now contains a pair of RGB triplets, "reference input" and "reference output", which makes it much more straightforward to compute the output multipliers. * Added support for `RGB` data type to putToKeyFile, removed the now unused `RGB::toVector()` method. Some cleanup. * Spot balance picker now stays active indefinitely. Can be disabled by right-clicking, too. * Removed film negative from `filterRawRefresh` condition, since the new version does not require raw rendering anymore. * The Output Level slider is now exponential, so it should feel more familiar to use (similar to the exposure compensation slider). * Removed old `RedBase`, `GreenBase`, `BlueBase` keys from the PP3 file after params upgrade. Keys are only kept if the file only undergoes batch edit (hence no params upgrade was done). * Made the balance sliders exponential and centered at zero. Now they should be a bit smoother and possibly more user-friendly. * Changed adjusters' step to more useful values, they were too fine-grained and hard to adjust using the +/- spinbutton. Increased max ratio value from 3 to 5, as i found an old negative needing a very high blue channel exponent. * Added an initial processing profile for film negative inversion, to be provided as a bundled profile. * Removed Output Level and balance sliders when in batch mode: since the effect of these sliders is dependent on the reference input values, those values needed to be copied as well. And, touching any of the sliders needed to flag all three as dirty. All this felt more confusing than useful. It should be sufficient (and clearer) to copy/paste the params, and then fine-tune the balance on individual pictures when needed. * Set bayer demosaic method to RCD in the bundled "Film Negative" processing profile. RCD seems to play a bit better with Capture Sharpening in the presence of film grain, compared to Amaze. This will favor new users starting with all-defaults settings, hence having Capture Sharpening enabled by default. * Removed incorrect "contrast" term from the "Reference exponent" label. This parameter adjusts the image _gamma_, not its contrast.
RawTherapee is a powerful, cross-platform raw photo processing program, released as libre software under the GNU General Public License Version 3. It is written mostly in C++ using a GTK+ front-end. It uses a patched version of dcraw for reading raw files, with an in-house solution which adds the highest quality support for certain camera models unsupported by dcraw and enhances the accuracy of certain raw files already supported by dcraw. It is notable for the advanced control it gives the user over the demosaicing and development process.
Target Audience
RawTherapee is designed for developing raw files from a broad range of digital cameras, as well as HDR DNG files and non-raw image formats (JPEG, TIFF and PNG). The target audience ranges from enthusiast newcomers who wish to broaden their understanding of how digital imaging works to semi-professional photographers. Knowledge in color science is not compulsory, but it is recommended that you are eager to learn and ready to read our documentation (RawPedia) as well as look up basic concepts which lie outside the scope of RawPedia, such as color balance, elsewhere.
Professionals may use RawTherapee as well while enjoying complete freedom, but will probably lack some peripheral features such as Digital Asset Management, printing, uploading, etc. RawTherapee is not aimed at being an inclusive all-in-one program, and the open-source community is sufficiently developed by now to offer all those peripheral features in other specialized software.
Links
Website: https://www.rawtherapee.com/
Forum: https://discuss.pixls.us/c/software/rawtherapee
Features: https://rawpedia.rawtherapee.com/Features
Documentation: https://rawpedia.rawtherapee.com/
Download RawTherapee: https://www.rawtherapee.com/downloads
Download source code tarballs: https://www.rawtherapee.com/shared/source/
Compilation, Branches and Git
Refer to RawPedia for a detailed explanation of how to get the necessary dependencies and how to compile RawTherapee.
Linux: https://rawpedia.rawtherapee.com/Linux