ImageOptim-CLI features in this comparison of the performance of image optimisation tools alongside Kraken.io, CodeKit, grunt-contrib-imagemin,, and TinyPNG. The ImageOptim-CLI Grunt plugin is grunt-imageoptim. OS X Mavericks: Enable access for assistive devices and applications.Enable access for assistive devices in OS X.This requires your permission and is easily set up in System Preferences as shown by these guides. The JPEGmini OS X Apps don't include a command line API, so a real user is simulated by entering synthetic clicks and keyboard commands instead. To automate JPEGmini we need to add Terminal.app (or iTerm.app etc) to the 'support for assistive devices' whitelist. You may be presented with the following message the first time you run ImageOptim-CLI with the -jpegmini flag.
⚠️ JPEGmini and support for assistive devices Run ImageOptim.app over every image in a specific directory Run JPEGmini.app and ImageOptim.app over every JPG in current directory Run ImageAlpha.app and ImageOptim.app over every PNG in current directory Run ImageOptim.app over every image in current directory speed ImageAlpha speed from 1 (brute-force) to 10 (fastest), defaults to 1 quality - ImageAlpha quality range from 0-100, defaults to 65-80 number-of-colors ImageAlpha palette size, defaults to 256 S, -no-stats do not display file size savings and quality loss information Q, -no-quit do not quit apps once finished C, -no-color output to the terminal without colors
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