imagecolorstotal
(PHP 3, PHP 4 )
imagecolorstotal -- Find out the number of colors in an
image's palette
Description
int imagecolorstotal ( resource image)
This returns the number of colors in the specified image's
palette.
See also imagecolorat() and imagecolorsforindex().
imagecolortransparent
(PHP 3, PHP 4 )
imagecolortransparent -- Define a color as transparent
Description
int imagecolortransparent ( resource image [, int color])
imagecolortransparent() sets the transparent color in the
image image to color. image is the image identifier returned
by imagecreate() and color is a color identifier returned
by imagecolorallocate().
Note: The transparent color is a property of the image,
transparency is not a property of the color. Once you have
a set a color to be the transparent color, any regions of
the image in that color that were drawn previously will
be transparent.
The identifier of the new (or current, if none is specified)
transparent color is returned.
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