IMAGECOLORSFORINDEX(3) 1 IMAGECOLORSFORINDEX(3)
imagecolorsforindex - Get the colors for an index
SYNOPSIS
array imagecolorsforindex (resource $image, int $index)
DESCRIPTION
Gets the color for a specified index.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $index
- The color index.
RETURN VALUES
Returns an associative array with red, green, blue and alpha keys that contain the appropriate values for the specified color index.
EXAMPLES
Example #1
imagecolorsforindex(3) example
<?php
// open an image
$im = imagecreatefrompng('nexen.png');
// get a color
$start_x = 40;
$start_y = 50;
$color_index = imagecolorat($im, $start_x, $start_y);
// make it human readable
$color_tran = imagecolorsforindex($im, $color_index);
// what is it ?
print_r($color_tran);
?>
The above example will output something similar to:
Array
(
[red] => 226
[green] => 222
[blue] => 252
[alpha] => 0
)
SEE ALSO
imagecolorat(3), imagecolorexact(3).
PHP Documentation Group IMAGECOLORSFORINDEX(3)
