imagecolorclosest
(PHP 3, PHP 4 )
imagecolorclosest -- Get the index of the closest color
to the specified color
Description
int imagecolorclosest ( resource image, int red, int green,
int blue)
Returns the index of the color in the palette of the image
which is "closest" to the specified RGB value.
The "distance" between the desired color and
each color in the palette is calculated as if the RGB values
represented points in three-dimensional space.
See also imagecolorexact().
imagecolorclosestalpha
(PHP 4 >= 4.0.6)
imagecolorclosestalpha -- Get the index of the closest
color to the specified color + alpha
Description
int imagecolorclosestalpha ( resource image, int red, int
green, int blue, int alpha)
Returns the index of the color in the palette of the image
which is "closest" to the specified RGB value
and alpha level.
Note: This function was added in PHP 4.0.6 and requires
GD 2.0.1
See also imagecolorexactalpha().
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