imagecopymergegray

imagecopymergegray

Copy and merge part of an image with gray scale

true **imagecopymergegray** GdImage $dst_image GdImage $src_image int $dst_x int $dst_y int $src_x int $src_y int $src_width int $src_height int $pct

copy a part of  onto
starting at the x,y coordinates

, with a width of and a height of . The portion defined will be copied onto the x,y coordinates, and . imagecopymergegray``src_image``dst_image``src_x``src_y``src_width``src_height``dst_x``dst_y

This function is identical to except that when merging it preserves the hue of the source by converting the destination pixels to gray scale before the copy operation. imagecopymerge

dst_imagegd.image.destination

src_imagegd.image.source

dst_xx-coordinate of destination point.

dst_yy-coordinate of destination point.

src_xx-coordinate of source point.

src_yy-coordinate of source point.

src_widthgd.source.width

src_heightgd.source.height

pct The will be changed to grayscale according to where 0 is fully grayscale and 100 is unchanged. When = 100 this function behaves identically to for pallete images, except for ignoring alpha components, while it implements alpha transparency for true colour images. src_image``pct``pct``imagecopy

return.true.always

Voorbeeld: usage

<?php
// Create image instances
$dest = imagecreatefromgif('php.gif');
$src = imagecreatefromgif('php.gif');

// Copy and merge - Gray = 20%
imagecopymergegray($dest, $src, 10, 10, 0, 0, 100, 47, 20);

// Output
header('Content-Type: image/gif');
imagegif($dest);
?>