[Digikam-devel] Re: PGF files in KDE

Sven Burmeister sven.burmeister at gmx.net
Mon May 16 10:29:00 BST 2011


Am Montag, 16. Mai 2011, 10:36:17 schrieb Gilles Caulier:
> 16 bits colors dept ==> 48 bits by pixels ( Red = 16 bits + Green = 16
> bits + Blue = 16 bits)
> 
> In fact one pixel = 4*16 bits = 48 bits, not 24 bits.
> 
> 24 bits by pixel want mean 3*8 = 24  ( Red = 8 bits + Green = 8 bits +
> Blue = 8 bits)
> 
> Do not confound color depth by color component and and color depth for
> all components for one pixel. One pixel is 3 color components...

Ok, so you say that although one picture shows 24 bpp and the other 8 bpp they 
are both 8 bit pictures.

So how do I get a PGF that holds the same information the JPG holds, no less, 
no more and has a compareable size, i.e. not three times as big?

Sven



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