Hi Anthony. Thanks for the suggestion to look at optiPNG. However, having had a look at it optiPNG is solely for reducing the size of PNGs and can only do the opposite of what I need: it can reduce the bit depth from 8-bit to 4-bit. I need to increase the bit depth from 4-bit to 8-bit.
Cheers, Jon. -----Original Message----- From: Anthony Thyssen [mailto:[EMAIL PROTECTED] Sent: 16 January 2008 02:46 To: ImageMagick User List Cc: Jon Perkin Subject: Re: [magick-users] How to write an 8-bit PNG even with 16 colours or less {perlmagick] "Jon Perkin" on wrote... | Hi all. | | =20 | | I'm using PerlMagick to generate PNG images for use on an embedded | platform that only supports 8-bit (256-colour palette) PNG images. | | =20 | | If one of my images has 16 colours or less, PerlMagick 'cleverly' | creates a 4-bit (16-colour palette) PNG image, even if I've specified | depth=3D>8. The 4-bit version does not work on my target platform. | | =20 | | Does anyone know if there's any way I can force PerlMagick to give me an | 8-bit PNG, even though my image has 16 colours or less? If anyone knows | how to do it using one of the other APIs that would still be useful. | | =20 | Best idea is to use "optiPNG" to set the PNG internal format to what you specifically need. Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]> ------------------------------------------------------------------------ ----- I haven't lost my mind, its backed up on tape somewhere! - Peter da Silva ------------------------------------------------------------------------ ----- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
