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 ImageOptim-CLI says “To automate JPEGmini we need to enable GUI Scripting”, how do I do that? Windows and Linux Can I use ImageOptim-CLI on Windows or Linux? Are there any plans for ImageOptim-CLI to support Windows or Linux? I don't have OS X, can you recommend an alternative to ImageOptim-CLI? ⚙️ Contributing □□♀️ Getting Help □ Other Projects □ Author README.md JPEGmini Can I use ImageOptim-CLI with JPEGmini Lite, the free version of JPEGmini? I upgraded from JPEGmini Lite to JPEGmini but ImageOptim-CLI still says JPEGmini is not installed. ImageAlpha I don't think ImageAlpha is running, I can't see anything. You may need to have a patent license to use H.264/H.265 video (I recommend using VP9/WebM instead).ImageOptim-CLI Table of Contents □ Summary □ Installation npm homebrew Manual □ Usage ⚠️ JPEGmini and support for assistive devices □ Related Projects Grunt Plugin Comparison of image optimization tools Article for Smashing Magazine Alfred Workflow ❓ FAQs General Do ImageOptim, ImageAlpha, or JPEGmini come bundled with the ImageOptim-CLI installation? Do I have to pay to use ImageOptim-CLI? The WebP image format looks promising, can you get ImageOptim-CLI to convert images to it? Can you get ImageOptim-CLI to skip images it has already processed, if they haven't changed? ImageOptim ImageOptim makes the fans on my Mac run at full power. When compiled with video support ffmpeg licenses apply. Once you have dependencies installed, compile with cargo build -release -features=video or cargo build -release -features=video-static. If you're cross-compiling, try uncommenting section at the end of Cargo.toml, which includes some experimental fixes for ffmpeg. Especially on macOS and Windows it takes expert knowledge to just get them installed without wasting several hours on endless stupid installation and compilation errors, which I can't help with. Please note that installation of these dependencies may be quite difficult. Details depend on the platform and version, but you usually need to install packages such as libavformat-dev, libavfilter-dev, libavdevice-dev, libclang-dev, clang. You must have ffmpeg and libclang installed, both with their C headers installed in default system include paths. The tool optionally supports decoding video directly, but unfortunately it relies on ffmpeg 4.x, which may be very hard to get working, so it's not enabled by default. Let me know if you'd like to use it in a product incompatible with this license. I can offer alternative licensing options, including commercial licenses. The cbuild command can be omitted, since cinstall will trigger a build if it hasn't been done already. To build the library, run:Ĭargo cinstall -prefix=/usr -release -destdir=pkgroot In the cloned directory, run: cargo build -release.if you don't run rustup update regularly. You may get compile errors, warnings about "unstable edition", etc. This project only supports up-to-date versions of Rust. Install Rust via rustup or run rustup update.The command line tool will display estimated total file size during compression, but keep in mind that the estimate is very imprecise. If you need to make a GIF that fits a predefined file size, you have to experiment with different sizes and quality settings. -motion-quality=60 lower values cause smearing or banding in frames with motion, but reduce file sizes.-lossy-quality=60 lower values make animations noisier/grainy, but reduce file sizes.Add -quality=80 (or a lower number) to lower overall quality.Use -width and -height to make the animation smaller.GIF just isn't that good at compressing, no matter how much you compromise. Tips for smaller GIF filesĮxpect to lose a lot of quality for little gain. If the input was ever encoded using a lossy video codec it's recommended to at least halve size of the frames to hide compression artefacts and counter chroma subsampling that was done by the video codec. You can also resize frames (with -W option).
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