The imagecopymergegray() function is used to copy and merge part of an image with gray scale.
Syntax
imagecopymerge ( dst_img, src_img, dst_x, dst_y, src_x, src_y, src_w, src_h, pct )
Parameters
dst_im
Set destination image link resource.src_im
Set source image link resource.dst_x
Set x-coordinate of destination point.dst_y
Set y-coordinate of destination point.src_x
Set x-coordinate of source point.src_y
Set y-coordinate of source point.src_w
Set source width.src_h
Set source height.pct
The src_im will be changed to grayscale according to pct where 0 is fully grayscale and 100 is unchanged.
Return
The imagecopymergegray() function returns the TRUE on success or FALSE on failure.
Example
The following is an example:
<?php
$destImg = imagecreatefromgif('https://www.tutorialspoint.com/images/html.gif');
$srcImg = imagecreatefromgif('https://www.tutorialspoint.com/images/html.gif');
imagecopymergegray($destImg, $srcImg, 10, 10, 0, 0, 350, 120, 60);
header('Content-Type: image/png');
imagegif($destImg);
imagedestroy($destImg);
imagedestroy($srcImg);
?>Output
The following is the output:
Example
Let us see another example wherein we have set different x and y coordinate:
<?php
$destImg = imagecreatefromgif('https://www.tutorialspoint.com/images/html.gif');
$srcImg = imagecreatefromgif('https://www.tutorialspoint.com/images/html.gif');
imagecopymergegray($destImg, $srcImg, 20, 10, 0, 0, 410, 130, 100);
header('Content-Type: image/png');
imagegif($destImg);
imagedestroy($destImg);
imagedestroy($srcImg);
?>Output
The following is the output:
