imagecopymergeimagecopymergegray
(PHP 4 >= 4.0.6, PHP 5)
imagecopymergegray — Copy and merge part of an image with gray scale
Opis
$dst_im
, resource $src_im
, int $dst_x
, int $dst_y
, int $src_x
, int $src_y
, int $src_w
, int $src_h
, int $pct
)
imagecopymergegray() copy a part of src_im onto
dst_im starting at the x,y coordinates
src_x, src_y with
a width of src_w and a height of
src_h. The portion defined will be copied
onto the x,y coordinates, dst_x and
dst_y.
This function is identical to imagecopymerge() except that when merging it preserves the hue of the source by converting the destination pixels to gray scale before the copy operation.
Parametry
-
dst_im -
Zasób obrazu wynikowego.
-
src_im -
Zasób obrazu źródłowego.
-
dst_x -
x-coordinate of destination point.
-
dst_y -
y-coordinate of destination point.
-
src_x -
x-coordinate of source point.
-
src_y -
y-coordinate of source point.
-
src_w -
Szerokość źródła.
-
src_h -
Wysokość źródła.
-
pct -
The
src_imwill be changed to grayscale according topctwhere 0 is fully grayscale and 100 is unchanged. Whenpct= 100 this function behaves identically to imagecopy() for pallete images, except for ignoring alpha components, while it implements alpha transparency for true colour images.
Zwracane wartości
Zwraca TRUE w przypadku powodzenia, FALSE w
przypadku błędu.
Przykłady
Przykład #1 imagecopymergegray() usage
<?php
// Create image instances
$dest = imagecreatefromgif('php.gif');
$src = imagecreatefromgif('php.gif');
// Copy and merge - Gray = 20%
imagecopymergegray($dest, $src, 10, 10, 0, 0, 100, 47, 20);
// Output and free from memory
header('Content-Type: image/gif');
imagegif($dest);
imagedestroy($dest);
imagedestroy($src);
?>
add a note
User Contributed Notes
imagecopymergegray - [8 notes]