I’m having a bit of fun with .DNG files.
My setup is a Moto G4 Android phone running Open Camera on the Camera2 api. Open camera produces DNG and Jpegs.
I’m trying to use Fiji Imagej with the DNGs but am having a number of issues as follows:
- After opening a sequence of DNGs, certain zoom factors produce a kind of ‘cross hatch’ grid on the image. If you then save these as another format (jpeg, bmp) etc then this cross hatch is still visible at some zoom factors.
Repeating the above using the Jpeg stream as a source shows no issues in the original or exported images.
- After opening a stream of DNGs and saving to other formats, some of the image formats come out extremely dark and look solid black. They are not solid black as adjusting the Levels in paint.net by a HUGE amount just about shows the image.
Opening as DNG and saving as TIF or PNG shows the very dark images. Re-opening the very dark images in Fiji works fine and the image looks as it should.
Opening as DNG and saving as Jpeg or BMP works as expected (the images aren’t black).
I hope this makes sense!
Thanks for reading…