(PHP 4, PHP 5)
imagecolorresolve — Get the index of the specified color or its closest possible alternative
This function is guaranteed to return a color index for a requested color, either the exact color or the closest possible alternative.
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.
Zasób obrazu, zwrócony przez jedną z funkcji tworzących obrazy, taką jak imagecreatetruecolor().
Value of red component.
Value of green component.
Value of blue component.
Returns a color index.
Example #1 Using imagecoloresolve() to get colors from an image
<?php
// Load an image
$im = imagecreatefromgif('phplogo.gif');
// Get closest colors from the image
$colors = array();
$colors[] = imagecolorresolve($im, 255, 255, 255, 0);
$colors[] = imagecolorresolve($im, 0, 0, 200, 127);
// Output
print_r($colors);
imagedestroy($im);
?>
Powyższy przykład wyświetli coś podobnego do:
Array ( [0] => 89 [1] => 85 )