compress - compress image with lossless jpeg algorithm black= - black level (optional, default is 0) white= - white level (optional, default is maximum for a given bit depth) wp= - comma separated white point values (mandatory) Alowed values: RGGB, GBRG, GRBG, BGGR (mandatory) dcp= - path to DCP (digital camera profile) file (mandatory) 8, 10, 12, 14, 16 bits per pixel PGMs are supported, but 10-bit PGMs are encoded as 16-bit DNGs. Pgm2dng.exe command-line options: -in= -out= -dcp= -wp= -white= -black= -compress This information is required for color processor to correctly convert raw to RGB image. Then open this image into graphics editor (Photoshop or GIMP) and get these values with color picker.ĬFA (bayer) pattern. For that purpose one can use fast_debayer freeware application from Fastvideo. One of the ways to obtain these values is to demosaic (debayer) raw image into RGB. These values provide correct white balance on processed image. #Adobe dng converter portable Patch#White point - RGB values of gray patch from color checker or gray card. For more details see Basic workflow for making a DNG profile using a color checker and DcamProf For that purpose one can use fastDebayer freeware application from Fastvideo. To create profile with DcamProf you will have to demosaic (debayer) raw image into RGB. You will need a shot of color checker in linear color space (some camera can shoot in log or other non linear color spaces, so you should switch it to linear mode). Create your own profile with DCamProf and color checker.If you have DNG file from the camera of the same model, you can use dcptool to decompile it to xml file and compile that xml file into dcp.Try to find sutable profile in the internet.Try to find sutable profile in the DCPProfiles folder of this repository.If you don't have this profile, you can do the following: For raw processor to correctly work with resulting DNGs we also should provide some additional information:ĭCP (digital camera profile) file, that contains color transformation information (at least 3x3 color matrix and illuminant information). But this is not enough for good color reproduction. Apart from bitmap we know bit depth and image resolution (width and height) for every frame. Usually we get raw frame from machine vision or industrial camera as a bitmap of 8/10/12/14/16-bit values which we store as PGM (Portable Gray Map) image. Pgm2dng is a command line converter, that converts PGM files with raw CFA data into DNG format, that could be processed with raw processors (Adobe Camera Raw, Raw Therapee, Fast CinemaDNG Processor). Pgm2dng PGM to DNG command line converter
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