function allows negate, grayscale, brightness, contrast, colorize, selective blur,
Gaussian blur, edge detect, smooth, sharpen and emboss filters to be applied
on an image.
LZW patent violation so we can distribute read-only GIF support with
our bundled GD2. The patent also expires in 2003, which is quickly
approaching, so we can roll in write support soon unless things change.
true-color version.
(PHP imagelayereffect) extended alpha-channel mixing effects for the
bundled GD library
@Added ImageColorMatch() and ImageLayerEffect() functions
@which work with the bundled GD library (ttoohey)
This initial checkin has no changes to any of the libgd code so it can
be used as a basis for diffs. It also will not build currently because
of this. The PHP gd checks need to be incorporated along with a bit of
other config magic. It also shouldn't break the build and will only
take effect if you use --with-gd=php right now.
