Sometimes it's better to start from original raw data that are similar to a photo negative. While JPEG is a worldwide well known format for sharing images, it has several limits when it's time to elaborate or correct even any simple error while trying to preserve the best quality. As almost every manufacturer created a proprietary format for saving pixel data and accompanying metadata, this evolved in tenths of different "raw formats": thus there is no one "raw image" but different raw formats (ex: NEF,CR2,ARW etc). ![]() Its only purpose is to decode raw digital photos made by enthusiast or professional cameras. The original dcraw is the only open source program continuously updated by the author Dave Coffin to support new digital cameras. ![]() DCraw mobile is a porting of the famous program dcraw for the Android platform.
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