Yes
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I think (and someone more familiar please correct me if Iām wrong), RTās original whitebalance module was placed after demosaic so the user can regard the image in a ādevelopedā state in order to make good decisions on modifying it. It was later discovered that some demosaic algorithms do better with a white-balanced input image, which led to this autoWB ->demosaic->removeAutoWB->userWB chain of processing. This solves the demosaic problem and keeps the operator-considered WB in a good placeā¦ ??
If you put the user-controlled white balance after demosaic, it improves responsiveness when adjusting WB because demosaic doesnāt have to be rerun.
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Ah, thatās the part I forgot about my short discussion with @heckflosse about itā¦
If yes, the story goes well. It may indicate that WB before interpolation has something good because you can also skip WB before demosaic by setting RGGB:1111.
Can you provide a source for your claim that most cameraās have WB before demosaicing?
As far as I checked patents about image processing with Canon and Sony, and press releases from Fujitsu, vendor of Nikonās expeed, they all say that WB happens before demosaicing.
When Big 3 are in tandem, I think I can be allowed to say itās āmostā.
Thereās no need for a cameraās WB to happen after demosaicing because in-camera image processing isnāt really interactive.
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I fully agree with you.