xpatUSA

There's also 'JPEGsnoop' which calculates it for you ... https://www.impulseadventure.com/photo/jpeg-snoop.html

"It all depends on what the meanin g of 'is' is" ... Yep.

I know what a color gamut is. ! compared with a SWOP gamut - three patches were indeed out of the CIELAB 2D gamut My example was 2D which does not have a "volume". Bringing the application of ...

What? "Since its introduction in 1992, JPEG has been the most widely used image compression standard in the world," https://en.wikipedia.org/wiki/JPEG and tarmo was talking only about compression ...

Sorry, I meant lp/mm either horixontally or vertically, Scott.

And the geometric resolution of 60MP is only 15% more than 45MP ...

Good luck ... I seem to recall that there was some guesswork for Merrill conversions due to inscrutability in the raw meta-data ...

A reasonable metric and much less vague than "resolution" ... ... are we talking about the best possible out-of-camera JPEG quality, often called "fine"?

Depends on what is meant by "detail", for which there are many definitions - mpstly subjective and vague. Some time ago I compared my SD9 versus my G9. Based on MTF at Nyquist, the Foveon was quite ...

Neither is the color gamut of the Macbeth ... even compared to sRGB: Why are we now talking about gamuts when the discussion is about the difference in color (deltaEab) between color patches shot ...

Or open a Tiff in ACR and 'save as' DNG direct from ACR Says here that Lr xan do it: https://groups.google.com/g/raw-photo-processor/c/wA7G-k8okUA?pli=1

Bummer ... I seem to recall that the Adobe converter can go TIFF to DNG but can't find my copy to test it and their download is now for Win 10, grump; https://community.adobe.com/t5/camera-raw-disc ...

Ta!

Of course, Scott ... ... https://www.dpreview.com/forums/post/66830326

Thanks Jack ... greatly appreciated ...

Typing but not real well - someto\on ... duh ... sometimes I leave minor typos in ...

Thanks all for responses so far! It took me a long time to e4ven begin to understand the difference myself. A basic difference is that scene-referred does linear processing (no gamma yet) in the ...

Nicely put, Jeffry! Interesting too how ICC calls them "scene analysis sliders" ...

"tu peux"??, not "vous pouvez"? A bit too familiar, I think ... ;-)

Posted for those who use ACR when developing Sigma raw or DNG images. It seems that ACR is intended to create a scene-referred image rather than display-referred. Very loosely, that means that ACR ...