在PHP中压缩GIF图像质量? [英] Compress GIF Images Quality in PHP?

问题描述

如何在PHP5中压缩GIF图像文件?

How would one compress GIF image file in PHP5 ?

我知道有可能与jpg这样的jpg图像一起使用jpeg($ resource，$ filename，$ quality) 根据 http://us.php.net/manual/en/function进行操作. imagejpeg.php

I know that its possible to do with JPG like this imagejpeg($resource, $filename, $quality) according to http://us.php.net/manual/en/function.imagejpeg.php

推荐答案

JPG是有损压缩.这意味着您可以使用质量参数"来调整尺寸/质量比.

JPG is a lossy compression. This means that you can use "quality parameter" to adjust size / quality ratio.

GIF是一种无损压缩，您无法通过调整质量来获得更好的压缩.

GIF is a lossless compression, you cannot get better compression by adjusting quality.

要创建GIF图像，请使用imagegif(...)
http://us.php.net/manual/en/function.imagegif.php

To create a GIF image use imagegif(...)
http://us.php.net/manual/en/function.imagegif.php

这篇关于在PHP中压缩GIF图像质量?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！