05-30-2018, 09:05 PM
I have been working with a very large TIFF from the USGS of the lunar surface. It is an elevation map that indicates height as a shade of gray. It is too large for me to open directly, so i've been processing it with Image Magick, to crop, reduce size, or change format.
Every version generated has had the same distortion of the grayscale. There are no midtones, everything is pushed to the white and black ends of the scale. It's like the histogram was pushed to one end and wrapped around to the other end.
![[Image: 1D4K5ez.png]](https://i.imgur.com/1D4K5ez.png)
I am inquiring on the Image Magick forum as to how i might correct this. But it occurred to me, that maybe this is to do with a profile for grayscale embedded with the file, and that if i could convert it to a different profile, it would all be fixed.
Is that a possibility?
Every version generated has had the same distortion of the grayscale. There are no midtones, everything is pushed to the white and black ends of the scale. It's like the histogram was pushed to one end and wrapped around to the other end.
I am inquiring on the Image Magick forum as to how i might correct this. But it occurred to me, that maybe this is to do with a profile for grayscale embedded with the file, and that if i could convert it to a different profile, it would all be fixed.
Is that a possibility?