How to emulate DSLR back-of-camera histogram transformation?

[Jason Tackett]

Does anyone know how to emulate the histogram transformation that a Canon DSLR uses to produce the back-of-camera image? I have good experience using raw files PI for deep sky work, but now I would like to process daytime images. Often, the back-of-camera image looks pretty good for me, so I would like to use a similar histogram transformation as a starting point when working with daytime raw images. Are there specific settings in HistogramTransformation or some other process I could use to emulate the stretch that the camera gives me?

Thanks,
Jason

[David Serrano]

Often, the back-of-camera image looks pretty good for me, so I would like to use a similar histogram transformation as a starting point when working with daytime raw images. Are there specific settings in HistogramTransformation or some other process I could use to emulate the stretch that the camera gives me?

Probably not what you're looking for, but I usually shoot in RAW+small JPG mode and then I open both files in PI so I have the JPG one as a reference.

[Jason Tackett]

Thanks for the suggestion, David. If it comes down to it, I could experiment with HistogramTransformation until I get a result similar to the jpeg produced by the camera. I was just curious if there was some "industry standard" gamma stretch that is applied to DSLR images. The stretch probably depends on the manufacturer, but there should be some similarities.

Thanks again.