[GEM-dev] Re: GEM: pix_image reloading image already loaded

[chris clepper]

On Oct 28, 2004, at 2:00 PM, Etienne Desautels wrote:

>
> Hi Chris,
>
> Thanks for your answer.
>
> I just replace my pix_image object with pix_film and it works. I also 
> send it a RGB colorspace message at loading time, this way PNGs are 
> showing fine. Without the RGB message, JPGs are showing fine but not 
> PNGs. Do you have any ideas why it works with JPGs and not PNGs?

Quicktime will convert YUV to RGB automagically, but not the other way 
around.  pix_film defaults to YUV because it is the proper color-space 
for video and also quite a bit faster than RGB.  PNG images are RGB 
with lossless compression, while JPEG are YUV with lossy compression 
applied.

cgc