Darktable processed RAW versus Canon embedded JPG

My attempt. These are the same edit; the second one is only cropped. dt 4.6.1


R6JJ1212.CR3.xmp (8.6 KB)

R6JJ1212_01.CR3.xmp (9.1 KB)

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Sharpened with RL deconvolution in RT
R6JJ1212.jpg.out.pp3 (15.1 KB)

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keep in mind that Canon R6mII isn’t supported yet by libraw - so you’re comparing a processing based on full knowledge of the camera capabilities with an improvised software :wink:

Agreed, but does camera support in libraw do more than give DT a good start point for white balance?


R6JJ1212.CR3.xmp (13.0 KB)

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First edit in dt then processed further in GIMP (mainly GMIC filters Richardson-Lucy and Constrained Sharpen)


R6JJ1212.CR3.xmp (26.8 KB)

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My version…


R6JJ1212.CR3.xmp (15.5 KB)
My experience with Canon OOC Jpegs is that they are generally pretty good. However, I would always expect to be able to bring out more detail from the raw using DT than what is found in the JPG. This is my attempt to sharpen the bird, but the crop is massive due to how distant the bird is for its size. That will always give a challenge for sharpness of detail.

I would have been interested in having the OOC JPG file as a comparison for my efforts.

Thanks for the play. Processed on V4.7

I had no problem opening this on Windows latest 4.7 weekly build by Bill Ferguson.

I think the op provided this or at least said the jpg offered was the OOC version…

My Bad. In that case then a number of edits here have exceeded the OOC Jpg for detail. Still the Canons including my G16 and R7 do a reasonable JPG. My Olympus TG6 is so soft it is unbearable.

Terry,
I think the second image in this thread is the embedded jpeg - uncropped.

I extracted this from the raw file with exiftool.

darktable 4.4.1

R6JJ1212.CR3.xmp (18.5 KB)

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A crop similar to yours. Darktable development version, but I don’t think I used any module not present in 4.6.1.
R6JJ1212.CR3.xmp (16.9 KB)

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Certainly some beautiful sharp images here. It is all about learning the tools in DT that can achieve this. I am still learning and will look at some of the xmp files here because mine is nowhere near as good as all these images.

No, I think that’s only a full size preview image. Would be nice to have the original OOC JPEG which is probably less compressed and has a larger file size.

Here is my version, which I tried to make look sharp. It is a beautiful bird, but either it is too small, too far away or the lens to short :innocent:. I am really surprised how good the image looks after despite the massive crop.


R6JJ1212.CR3.xmp (14.9 KB)

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My camera is set to shoot RAW only so there isnt an OOC JOEG. However, I extracted this image using

exiftool -b -JpgFromRaw

Are these any use?


and the same image cropped down

Okay, that explains the small file size of the JPEG. So, the comparison should be done with your extracted preview JPEG.

However, if you haven’t changed the original name of the file, you can still paste it into your SD card and develop that RAW in-camera to full sized JPG.

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