如何使图像魔术中的淡入淡出边缘? [英] How to make fade edges in image magic?

问题描述

我想使用imagemagic命令创建褪色的边缘图像效果.请帮助我，以使命令生效，例如 http://postimg.org/image/h51e4twyp/

I want to create faded edges image effect using imagemagic commands. Please help me for a command to make effect as like http://postimg.org/image/h51e4twyp/

推荐答案

从 Doge

curl -o doge.jpg http://i0.kym-cdn.com/photos/images/newsfeed/000/581/296/c09.jpg

下一步，模糊边缘.

convert doge.jpg -alpha set -virtual-pixel transparent -channel A -morphology Distance Euclidean:1,20\! +channel doge.png

您将需要将其输出为.png

You will need to output it as a .png

Imagemagick文档

编辑:以上示例适用于ImageMagick v6.

Edit: The above example is for ImageMagick v6.

对于IMv7，请尝试:

For IMv7 try:

convert doge.jpg \( +clone -alpha extract -virtual-pixel black -gamma 2 +level 0,100 -white-threshold 99 -morphology Distance Euclidean:1,200! -sigmoidal-contrast 3,0% \) -compose CopyOpacity -composite doge_im7.png

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