full test of curent cvs, was : Re: [GEM-dev] which gem to include in upcoming release

[Mathieu Bouchard]

On Sun, 5 Nov 2006, IOhannes m zmoelnig wrote:

>> so it's perfect i think.
>> (i just have 1 small problem with my philips webcam that convert red to
>> blue  and blue to yellow, but that's not a gem specific problem).
> some drivers claim that they can do RGB while they really provide BGR only.

If blue changes to yellow, either it's a cyanish blue switch to an 
orangish yellow, or it's not a RGB<->BGR switch. I think that for some 
webcams, the neutral hueshift is 0, whereas on some others it's 32768, and 
that may be another possible source of confusion (?).

AFAIK, many drivers nowadays don't support RGB nor BGR, so the confusion 
would instead be between YUV and YVU, which looks like a RGB<->BGR 
confusion, but can't be fixed in exactly the same way.

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| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada