Rechercher une fonction PHP

imagecopymergegray

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

imagecopymergegrayCopy and merge part of an image with gray scale

Description

imagecopymergegray ( resource $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 ) : bool

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.

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Parameters

dst_im

Destination image link resource.

src_im

Source image link resource.

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

Source width.

src_h

Source height.

pct

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

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Return Values

Returns TRUE on success or FALSE on failure.

PHP: imagecopymergegray - Manual Home of Manuel PHP  Contents Haut

Examples

Example #1 imagecopymergegray() usage

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

// Copy and merge - Gray = 20%
imagecopymergegray($dest$src1010001004720);

// Output and free from memory
header('Content-Type: image/gif');
imagegif($dest);

imagedestroy($dest);
imagedestroy($src);
?>

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.imagecopymergegray.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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