06-28-2017 03:40 AM - edited 06-28-2017 06:29 AM
Camera SX50HS
When I have dual capture, meaning, I can take RAW and JPG, what is the Histogram considering? I ask because on review the RAW and JPG Histograms are different. Yes, I know that the size format is different, and I expect the Histogram to reflect this, but just WHAT is the Histogram considering? R or J? Or maybe neither and that this Histogram is ONLY what the camera is seeing, regardless of format.
TIA
G
06-28-2017 01:12 PM
The histogram is from jpg. With third part hack CHDK you maybe will be able to use raw histogram. The latest time I used CHDK was when S3 IS was new.
06-28-2017 01:24 PM
06-28-2017 01:48 PM
A histogram only makes sense on "cooked" data - so the JPEG data is used. There was an old Luminous Landscape article on this very subject, but it is currently behind a paywall.
After all, without white balance applied, what should the colors be?
06-28-2017 02:42 PM - edited 06-28-2017 02:54 PM
@kvbarkley wrote:A histogram only makes sense on "cooked" data - so the JPEG data is used. There was an old Luminous Landscape article on this very subject, but it is currently behind a paywall.
After all, without white balance applied, what should the colors be?
I find in camera raw histogram useful. Miss it really much with my Canon M5.
First image, a print screen from the display from my 6D: 1% of red channel, 9% of green channel and 5% of blue channel blown out. I also get a suggestion of -1,5 EV to get all the highlights. Perhaps -1,3 would be perfect to just blow the highligts in green channel 1% and try to recover it in Darktable.
Second image, Darktable with raw highlight clipping activated.
06-30-2017 01:08 PM
This was the point of the LL article. You can display a raw histogram, but it uses the JPEG data to do it.
06-30-2017 01:24 PM
06-30-2017 05:14 PM
No, but I am sure if you search LL for "RAW Histogram" it will pop up.
06-30-2017 06:17 PM - edited 06-30-2017 06:18 PM
@kvbarkley wrote:No, but I am sure if you search LL for "RAW Histogram" it will pop up.
It didn´t. Only found people begging for raw histogram at the forum over there.
06-30-2017 06:51 PM
Sorry, my google-foo failed.
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