Re: bit depth of 4bit Gif file

Thanks,
A.

Il giorno 08/giu/09, alle ore 18:04, [email protected] 
  ha scritto:

>> Actually it is detected as a 8bit file.
>
> The image has 16 colors but the colormap requires 8-bits to encode the
> colors.  If the colors RGB values ranged from 0 to 15, ImageMagick  
> would
> report a depth of 4.
>
>  Colors: 16
>    0: (255,255,255)      grey100
>    1: (232,232,232)      grey91
>    2: (208,208,208)      #D0D0D0
>    3: (192,192,192)      silver
>    4: (176,176,176)      grey69
>    5: (168,168,168)      grey66
>    6: (152,152,152)      #989898
>    7: (136,136,136)      #888888
>    8: (112,112,112)      grey44
>    9: ( 96, 96, 96)      #606060
>    10: ( 72, 72, 72)     #484848
>    11: ( 48, 48, 48)     grey19
>    12: ( 40, 40, 40)     #282828
>    13: ( 32, 32, 32)     #202020
>    14: (  8,  8,  8)     grey3
>    15: (  0,  0,  0)     black
>