![]() ![]() ![]() The image won't open in photoshop or in lightroom and I can't find any indication as to what the actual problem is. So obviously SamplesPerPixel is present in SubIFD 1, and I've seen plenty of dngs that have LinearRaw with 3 channels. *** Error: Missing or invalid SamplesPerPixel (SubIFD 1) *** Orientation: 1 - 0th row is top, 0th column is left I'll start off with the verbose output of dng_validate: I'm working on a program to wrap image info into a dng format, but have run into a snag that I cannot find in the documentation. If you need the original NEF file let me know. Perhaps there is a hidden bug in the lossy DNG conversion process. I was very surprised, that JPG result is is much better than the lossy DNG for this case. The source of both DNG files was a NEF File from a Nikon D7100.Īlso interessting is, that for this excample the file size of the lossy DNG is greater than the lossless DNG. ![]() Here is the cropped JPG from the lossless DNG (file size 10877KB):īetween this JPG and the lossless DNG file is no visible difference.Īnd here a JPG from the lossy DNG (file size 13261KB):īetween this JPG and the source lossy DNG file is no visible difference. Surprisingly with this extreme example the JPG versions looks much better as the lossy DNG version of my source lossless DNG. I have an example where you can see red security lights of a great antenna on top of a mountain. The stars in the dark sky or the red lights of an aeroplane in the dark sky. It seems that the lossy DNG format has problems with dark pictures with small light sources for example I tried out the lossy DNG format with a lot of pictures.įor most pictures I can't find any visible differences.īut I found also some pictures with very noticible visible differences between lossless and lossy DNG. ![]()
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