Image-Pngslimmer

The correct title of this article is Image::Pngslimmer. The substitution or omission of the colon is due to technical restrictions.

In computer programming, Image::Pngslimmer is a Perl module of functions to reduce the size of PNG computer graphics. The module offers several basic functions, including:

• zlibshrink – which uses Perl's zlib implementation to attempt to better compress a PNG's IDAT (image data)
• filter – to apply adaptive filtering to the PNG's IDAT to help improve compression
• discard_noncritical – to remove non-critical chunks if they exist
• palettize – to use a colour palette, possibly through colour quantization using the median cut algorithm

External links

• Image::Pngslimmer – on CPAN
• http://png.transpero.net – author's own Subversion repository