Ryan Lamansky wrote:
> Daniel Hulme wrote:
>  > Human eyes can see far fewer than 2^24 colours. It is just that the
> 
>> representation we use is inefficient. We have more luminance resolution
>> than chrominance resolution, but as you say, RGB does not reflect this.
>> That is why I suggested using a different colour basis like YUV rather
>> than simply pumping up the bits.
> 
> 
> YUV would be great, but commodity hardware always uses 24-bit RGB for 
> the final output.
> 
> So... the idea is to make 24-bit RGB images look as good as possible. 
> The 256-shades-of-gray-even-at-24-bit-RGB problem is the most obvious 
> way the issue can be seen.  Some dithering algorithm from a higher 
> BPP-level or perhaps directly from POV's internal floating point color 
> could very effectively compensate.
> 
> -Ryan

So why not calculate YUV within POV and convert to RGB for the image?

--------------
David Wallace
TenArbor Consulting
"Just In Time Cash"
www.tenarbor.com
1-866-572-CASH

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