imagecolorclosest
(PHP 4, PHP 5)
imagecolorclosest — Get the index of the closest color to the specified color
Description
int imagecolorclosest
( resource $image
, int $red
, int $green
, int $blue
)
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.
If you created the image from a file, only colors used in the image are
resolved. Colors present only in the pallete are not resolved.
Parameters
-
image
-
An image resource, returned by one of the image creation functions,
such as imagecreatetruecolor().
-
red
-
Value of red component
-
green
-
Value of green component
-
blue
-
Value of blue component
The colors parameters are integers between 0 and 255 or hexadecimals
between 0x00 and 0xFF.
Return Values
Returns the index of the closest color, in the palette of the image, to
the specified one
imagecolorat
