While this is generally undesirable, there are situations where we can take advantage of this possibility. These demosaiced images are no longer really raw - they have been pre-cooked. The DNG format can contain real raw data, but it can also contain demosaiced images. These DNG files are no longer really raw due to them being demosaiced, and in doing so you are relying on Adobe's demosaicing algorithms and can no longer benefit from using RawTherapee's demosaicing algorithms, so do not use these settings for raw files which are natively supported by RawTherapee. Download Adobe DNG Converter (get the build for Windows if you're using Linux - installation is explained below).Īdobe DNG Converter 8.3.0 set up to convert raw files to demosaiced DNG files.Get the latest version of Adobe DNG Converter here: Note that these converters may use color matrices different to those from Adobe DNG Converter. There are DNGLab and the digiKam/kipi-plugins DNG Image Converter (which uses LibRaw and libkdcraw). Having said that, issues with DNG are very rare, unlike the FUD surrounding it which is in no hurry of dying down.Īdobe's DNG Converter is not the only program that converts raw files to DNG. If you do convert your raw files to DNG, you should first test a few sample DNG files to make sure everything in your workflow still functions correctly before deleting the source files. Possible reasons could be that the newer color matrices might be more accurate, lossless compression might be improved, improved support for defective pixel marking, inclusion of new opcodes, injection of new useful metadata tags, etc. In some cases it may be warranted to re-convert your old DNGs to a newer DNG specification using the newest version of Adobe's DNG Converter.
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