06-10-2018, 04:24 PM
Lets go back to the original question. Which 16 bit tiff files can you not open In Gimp 2.10.2 as 16 bit?
Not as confused as I am. The sample you provided opens in Gimp 2.10 as 16 bit so where is the problem?
Totally different question
Any image if you open as 8 bit - say a jpeg and edit. you lose data - get a 'combing effect' which can lead to that banding you see.
example 8 bit before and after https://i.imgur.com/3xJy6Aj.jpg see the gaps in the histogram - that produces the banding.
Use a 16 bit file reduces the effect. https://i.imgur.com/iUwzHQB.jpg
Even Ad*be says Open your 8 bit jpeg, convert to 16 bit for editing. Still not sure what you are doing and why the desire to use jpeg compression for a tiff.
Image -> Image Properties will tell you the precision of the image.
Back to which 16 bit tiff file does not open in Gimp 2.10 and where does it come from?
Quote:..They say that GIMP 2.10 supports 16 bit images but when I import a 16-bit TIF to GIMP, it prompts a warning that it will convert it to 8 bit. I am confused.
Not as confused as I am. The sample you provided opens in Gimp 2.10 as 16 bit so where is the problem?
Totally different question
Quote:One thing I know - if I import JPEG to GIMP and then export JPEG, there's vivid banding in sky area. If I import 16-bit TIF, the gentle tonal changes are much smoother.
Any image if you open as 8 bit - say a jpeg and edit. you lose data - get a 'combing effect' which can lead to that banding you see.
example 8 bit before and after https://i.imgur.com/3xJy6Aj.jpg see the gaps in the histogram - that produces the banding.
Use a 16 bit file reduces the effect. https://i.imgur.com/iUwzHQB.jpg
Even Ad*be says Open your 8 bit jpeg, convert to 16 bit for editing. Still not sure what you are doing and why the desire to use jpeg compression for a tiff.
Quote: Anyways, I want to know if I'm dealing with 16 bits.
Image -> Image Properties will tell you the precision of the image.
Back to which 16 bit tiff file does not open in Gimp 2.10 and where does it come from?