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Why input of rgb_to_lab and output of lab_to_rgb are not the same?
See original GitHub issueHi Kornia team,
I test rbg_to_lab and lab_to_rgb with these lines of code:
The input and output_rgb are supposed to be the same, but it is not the case.
I checked the document but did not see any special preprocessing method for input/output of those conversion functions.
So why they are not the same?
Thanks.
Issue Analytics
- State:
- Created 2 years ago
- Comments:6 (3 by maintainers)
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@edgarriba This might lead to some problems if someone tries to save an image or pass it onto another (kornia) function that expects things in 0,1 range. Imo
clip=Trueis a safer default.Yes @shijianjian it is because of clipping done during
lab_to_rgb. This is according to conversion standarts [ref]@hminle you can check our test for this exact thing here precision is within 1e-4. Let me know if this answers your question 😄