On 2/25/21 7:49 AM, T. Modes wrote:
[email protected] schrieb am Dienstag, 23. Februar 2021 um 21:53:38 UTC+1:
I want to check if the photo stacks I am working with are linear or not.
Yes; raw files are supposed to be linear, but Hugin does not work
with CR2, only tiff. If I convert the cr2 to tiff it will probably
add a gamma curve,
I know at least dcraw, RawTherapee and darktable can output in linear
color space without applying a gamma curve. What Adobe does I don't know.
Hmm, if you opt for linear color, does color space matter?
Also, I learned something when I changed cameras. I changed from a
camera whose sensor shot 15-bit per channel (each color) to one that I
understand shoots different bit depths per channel. What impact would
that have on "linear" color space?
In the attached picture green shift is seen in the cloud. To my
knowledge this means that the gamma curve has been calculated badly.
Not sure about this. The response curve is applied to all color
channels. When there is a color shift it is probably not related to the
response curve. Maybe there is a problem with the white balance instead.
What happens if the sensor's response curve varies for each color channel?
--
David W. Jones
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A list of frequently asked questions is available at:
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