PHP implementation of old photo effect using ImageMagick example

imagemagick introduction

imagemagick is an image processing software with powerful image processing capabilities. This article uses PHP to call imagemagick to achieve the effect of converting images to old photos.

imagemagick address: www.imagemagick.org

imagemagick installation

You need to install imagemagick, the installation method is as follows: Click to view

To generate the old photo effect using imagemagick, you need to perform the following steps

　　　　　 1.Use sepia to process the input image-process with the tone filter

　　　　　 2.Generate a white mask, fill with random noise, convert to grayscale, and add an alpha channel

　　　　　 3.The steps1and the following steps2The result is composed using the overlay method

The code is as follows:

<?php
/**
 * PHP call imagemagick to implement the old photo effect 
 * Date: 2016-12-31
 * Author: fdipzone
 * Ver: 1.0
 */
/**
 * Call imagemagick to implement the old photo effect
 * @param String $source Source Image
 * @param String $dest Destination Image
 */
function createOldPhoto($source, $dest){
 // Command Line
 $cmd = sprintf("convert ''%s''" -sepia-tone ''75%%' \( '%s'' -fill '#FFFFFF'' -colorize ''100%%' +noise Random -colorspace gray -alpha on -channel A -evaluate Set 100 \) -compose overlay -composite '%s'", $source, $source, $dest);
 // Execute Command
 exec($cmd);
}
// Original Image
$source = dirname(__FILE__).'/source.jpg';
// Generate Effect Image
$dest = dirname(__FILE__).'/dest.jpg';
// Create Effect Image
createOldPhoto($source, $dest);
// Display comparison of original image and effect image
echo '<meta http-equiv="content-type" content="text/html;charset=utf-8">;
echo '<p>Original Image</p>';
echo '<p><img src="'.basename($source).'"></p>';
echo '<p>Effect Image</p>';
echo '<p><img src="'.basename($dest).'"></p>';
?>

Comparison of Original Image and Generated Old Photo Effect

Summary

That's all about using PHP to call imagemagick to achieve the effect of old photos. I hope the content of this article can bring some help to everyone's learning or using PHP. If you have any questions, you can leave a message for communication.

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