Vincent LE CHEVALIER nous apporta ses lumieres en ce 2005-05-12 16:40:
> Warp wrote:
> 
>> Vincent LE CHEVALIER <gal### [at] libertysurffr> wrote:
>>
>>> Can anyone tell me more about 48bpp png format ? Is it able to store 
>>> float values ?
>>
>>
>>
>>   Truecolor images usually store 8 bits per color component. Some
>> image formats, such as for example png, support also 16 bits per color
>> component (making a total of 48 bits per pixel).
>>
> Ok, that was what I thought. So no floats involved, right ? Just asking, 
> because I'm considering a project right now, which will need high 
> dynamic range images, and thus I'm looking for the format that would 
> suit my needs best...
> 
Think of 48bpp png as "extended dynamic range". It can have 64bpp if you make use of
the alpha 
chanel (rgba).

Alain

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