install#
首先使用macport安装 imagemagick软件包，因为macport是编译安装软件包，所以安装过程会比较久（~9min）。
更加习惯homebrew的可以参考 官网imagemagick download 安装。
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| ❯ sudo port install imagemagick
Password:
---> Computing dependencies for ImageMagickWarning: cltversion: The Command Line Tools are installed, but MacPorts cannot determine the version.
Warning: cltversion: For a possible fix, please see: https://trac.macports.org/wiki/ProblemHotlist#reinstall-clt
The following dependencies will be installed:
aom
brotli
....
....
.
.
---> Activating webp @1.2.1_0
---> Cleaning webp
---> Fetching archive for ImageMagick
---> Attempting to fetch ImageMagick-6.9.11-60_1+x11.darwin_21.x86_64.tbz2 from https://packages.macports.org/ImageMagick
---> Attempting to fetch ImageMagick-6.9.11-60_1+x11.darwin_21.x86_64.tbz2 from https://pek.cn.packages.macports.org/macports/packages/ImageMagick
---> Attempting to fetch ImageMagick-6.9.11-60_1+x11.darwin_21.x86_64.tbz2 from https://kmq.jp.packages.macports.org/ImageMagick
---> Fetching distfiles for ImageMagick
---> Attempting to fetch ImageMagick-6.9.11-60.tar.xz from https://distfiles.macports.org/ImageMagick
---> Verifying checksums for ImageMagick
---> Extracting ImageMagick
---> Configuring ImageMagick
---> Building ImageMagick
---> Staging ImageMagick into destroot
---> Installing ImageMagick @6.9.11-60_1+x11
---> Activating ImageMagick @6.9.11-60_1+x11
---> Cleaning ImageMagick
---> Updating database of binaries
---> Scanning binaries for linking errors
---> No broken files found.
---> No broken ports found.
~ took 8m49s
|
convert#
修改gif循环次数，当loop为0时则关闭了gif的循环播放。
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| # convert -h | grep loop
# -loop iterations add Netscape loop extension to your GIF animation
convert -loop 1000 dog.gif bad_dog.gif
|
