[gs-devel] PDF rasterization for driverless printing: Color Management

[Till Kamppeter]

On 26/05/2021 20:45, Michael Sweet wrote:
> Till,
> 
>> On May 26, 2021, at 1:30 PM, Till Kamppeter <till.kamppeter at gmail.com> wrote:
>> ...
>> What do you mean here exactly? AdobeRGB compresses worse than sRGB? or 48-bit-sRGB compresses worse than 24-bit sRGB? What do you exactly want to say here?
> 
> 24-bit RGB (sRGB, AdobeRGB, etc.) starts out 1/2 the size and compresses better (less "noise") than 48-bit RGB data.
> 
> What I am saying is that you don't want to use 48-bit RGB for normal quality output - save it for the high/best/photo quality.

OK. I will let the code default to sRGB in general (if there is no hint 
about the input data color space) as this is the most common one used 
for PDFs. I only default to AdobeRGB if AdobeRGB is available in 16 bit 
per color and high color depth is requested (print-quality= high).

here we go:

https://github.com/OpenPrinting/cups-filters/commit/0ea2abac5

    Till