10个最佳的PHP图像处理库，供开发人员使用
1. Imagine
This image manipulation library is an object oriented PHP library which is built in PHP 5.3. By using this library, you can easily work on images such as cropping, resizing, and placing filters. In order to produce RGB code and object’s transparency percentage, this library consists of color class with two arguments in its constructor.
This library is created to perform image manipulation on the server side. The use of this image library allows you to perform complex image processing in an easy way. You can do this by using just a bunch of code. The operations that can be performed on image include rotating, cropping, resizing, stretching, and flipping.
3. Zebra Image
This lightweight and object oriented image manipulation library is built with PHP. The formats supported by Zebra Image include .JPG, .GIF + .PNG. It has the capability to convert one format to another format after every action.
This full object-oriented image manipulation library is used by PHP and GD2. Php5 Image is considered as an extended form of php-image project. This oriented image manipulation library offers various ICO image-file types such as PNG, GIF, PSD, JPEG, and ICO. Also, it outputs every image-file type supported by GD2.
5. Dynamic Dummy Image Generator
This library is a free PHP script by means of which you can generate images with any size and color. Also, you can text over the images.
6. WideImage
Wide Image is also considered as an object-oriented library used for image manipulation. The use of this library allows you to perform operations like manipulation, loading, and saving images in the image formats which are use generally.
7. Image Cache
This lightweight PHP class is used to move, compress, and cache the image in the browser. Then, it returns the image’s new source which is to be printed within an image tag. You can use this library by setting various options such as the base URL, the directory, etc.
This is a free PHP class which consists of image-editing-software based on layers. It allows you to superpose various layers and has the capability to perform functions like putting an image on another one moving, resizing, cropping, writing, rotating, superposing, etc.
9. Asido
This feature-rich image manipulating library is used for PHP which is suitable to any environment such as Magick Wand, GD2, and Image Magick. It provides support to both PHP4 as well as PHP5.
10. PhpThumb
This PHP library accepts all the source types for images in addition to every popular image format. The use of this image manipulating library allows you to rotate, crop, and watermark the mages. In addition, you can also define their quality.