Hello,
I have two FP16 .exr images with exact same data but one with linear gamma flag and the other one without.
Linear flag is shown in Image->Properties->ExifTool->OpenEXR as
"Channels: B half linear 1 1, G half linear 1 1, R half linear 1 1".
And the one without it
"Channels: B half 1 1, G half 1 1, R half 1 1".
They both look the same in XnViewMP, and, intuitively, I think they shouldn't.
I guess, Format setting->Read->OpenEXR->Gamma is used for both images but it should only be used for non-linear ones.
Is there any way to remediate this by taking into account linear flag set in the file?
Thank you.
OpenEXR images with linear and non-linear gamma look the same
Moderators: helmut, XnTriq, xnview
OpenEXR images with linear and non-linear gamma look the same
Last edited by zazik on Tue Nov 22, 2022 4:51 pm, edited 1 time in total.
Re: OpenEXR images with linear and non-linear gamma look the same
could you send me the 2 sample files? Currently there is no way
Pierre.
Re: OpenEXR images with linear and non-linear gamma look the same
Sure thing, attached.
Also, EXR (AFAIK) only supports 32-bit integer format, but ExifTool reports it as "int8u" and XnView produces black picture, UINT samples attached too.
Thank you.
Also, EXR (AFAIK) only supports 32-bit integer format, but ExifTool reports it as "int8u" and XnView produces black picture, UINT samples attached too.
Thank you.
- Attachments
-
- color-ramp.zip
- (761.01 KiB) Downloaded 8 times