I was assigned the task of creating some PNG images for Digital
Broadcasting and the standard I need to follow
(http://www.dibeg.org/aribstd/ARIBSTD.htm) says in STD-B24 Version 5.1
Vol-1 section 5.3 and 5.3.1:
/* Quote from section 5.3.1 */
When the color type is "3" (palette index), PLTE chunk in the PNG data
is omitted. In this case, CLUT should be presented in the multimedia
contents and the receiver should not refer PLTE chunk but should refer
the outside CLUT.
/* End Quote */
My question is if ImageMagick is able to create this external CLUT
file?? the documentation shows a -clut command but is for replacing the
current palette with a different one. I need to extract the current
palette (PLTE chunk) from a PNG image and create a CLUT file with it.
any help is greatly appreciated....
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