DPReview.com is closing April 10th - Find out more

Canon EOS R3 Baked in Raw Noise Reduction Revisited

Started Jan 21, 2022 | Discussions thread
J A C S
J A C S Forum Pro • Posts: 20,521
Re: Canon EOS R3 Baked in Raw Noise Reduction Revisited

hjulenissen wrote:

So an analysis of the psf/mtf of the max ISO vs some other ISO might give some insight into the nature of their noise reduction. Is it a per color channel blur? Median filter? Edge preserving?

I doubt that the camera would do such processing and still preserve the high fps. Also, I do not see any trace of softening of the image itself. In any case, the blur kernel at high ISO is negligeable, if that really is a convolution.

I posted something more about high ISO here:

More about high ISO: Canon EOS R Talk Forum: Digital Photography Review (dpreview.com)

One might then speculate that noise reduction at lower ISO possibly is of a similar nature, only backed off a bit in degree, kernel size etc.

Actually, it is much stronger at low ISO, and low signal.

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow