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Posted by Vegethalia on 01/02/08 14:54
First of all, thx for your reply! :)
> >The problem is that the resulting image never contain more that 128
> >colors! I can't push the 24bit image because of the size, as the
> >images are pretty big.
>
> 24-bit images are only three times larger than 8-bit images. The image on
> your page is only 150k bytes; 450k is not that big.
>
Uh... well that could be true if you work with 'raw' images, but PNG
images are compressed...
in fact, the previous image (2.450x812 pixels) as a PNG24 needs
870kbytes (and as a bmp uncompressed, almost 6megs!)
> >As you may imagine, the final image quality is quite horrible, for an
> >example,
> >http://eqsearchpro.pleyhades.com/ShowRecipe.php?item=8668&recipe=26059
> >save the image and open it with photoshop (for instance...), after
> >that, count the colors.
>
> I don't think that image looks bad. If you want smooth coloring, than keep
> it as true color.
>
> The "imagetruecolortopalette" page in the PHP documentation mentions an
> alternative. If you know which 256 colors you want, create an empty image
> with the palette you want, and use imagecopy to copy into that image.
Um I will try this and ill tell you the results.... :)
Anyway, you know why when you tell imagetrucolortopalette to use a
certain number of colors (ie 64), it never uses as much? Is that a bug
or just an nonperfect algorithm?
Thx again,
Vegethalia.
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