![]() -m 6 for the slowest compression method in order to get the best compression.-O3: this sets the optimization level to Gifsicle's maximum, which produces the slowest but best results.You'll find more info on that in this excellent blogpost by Sara Soueidan. Please be aware that SVGO can break your svg. SVGO's default configuration will be used, with the omission of the cleanupIDs and removeViewBox plugins because these are known to cause troubles when displaying multiple optimized SVGs on one page. -o2: this set the optimization level to two (multiple IDAT compression trials).-i0: this will result in a non-interlaced, progressive scanned image.After that we run the image through a second one: Optipng. We set no extra options, their defaults are used. The first one is Pngquant 2, a lossy PNG compressor. PNGs will be made smaller by running them through two tools. -all-progressive: this will make sure the resulting image is a progressive one, meaning it can be downloaded using multiple passes of progressively higher details.-strip-all: this strips out all text information such as comments and EXIF data.This setting seems to satisfy Google's Pagespeed compression rules -m85: this will store the image with 85% quality.JPGs will be made smaller by running them through JpegOptim. The package will automatically decide which tools to use on a particular image. Sudo dnf install libwebp-tools Which tools will do what? Here's how to install all the optimizers on Ubuntu: sudo apt-get install jpegoptimĪnd here's how to install the binaries on MacOS (using Homebrew): brew install jpegoptimĪnd here's how to install the binaries on Fedora/RHEL/CentOS: sudo dnf install epel-release The package will use these optimizers if they are present on your system: You can install the package via composer: composer require spatie/image-optimizer Optimization tools We publish all received postcards on our virtual postcard wall. You'll find our address on our contact page. ![]() We highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using. You can support us by buying one of our paid products. We invest a lot of resources into creating best in class open source packages. SilverStripe enthusiast? Don't waste time, go to the SilverStripe module. Using WordPress? Then try out the WP CLI command. Loving Laravel? Then head over to the Laravel specific integration. Here are some example conversions that have been done by this package. The package will automatically detect which optimization binaries are installed on your system and use them. The image at $pathToImage will be overwritten by an optimized version which should be smaller. $optimizerChain-> optimize( $pathToImage) $optimizerChain = OptimizerChainFactory:: create() Here's how you can use it: use Spatie\ ImageOptimizer\ OptimizerChainFactory Update yum database with yum using the following command.This package can optimize PNGs, JPGs, SVGs and GIFs by running them through a chain of various image optimization tools. In this tutorial we discuss both methods but you only need to choose one of method to install gifsicle. We can use yum or dnf to install gifsicle on CentOS 7. One other program is included with gifsicle and gifdiff compares two GIFs for identical visual appearance. * Unoptimizing animations, which makes them easier to edit. Gifsicle?s optimizer is pretty powerful, and usually reduces animations to within a couple bytes of the best commercial optimizers. You can also use transparency to make them even smaller. * It can optimize your animations! This stores only the changed portion of each frame, and can radically shrink your GIFs. * It can shrink colormaps and change images to use the Web-safe palette (or any colormap you choose). * Control over interlacing, comments, looping, transparency… * Creates well-behaved GIFs uses local color tables if it absolutely has to (local color tables waste space and can cause viewing artifacts), etc. * Prints detailed information about GIFs, including comments. Some more gifsicle features * Batch mode for changing GIFs in place. Gifsicle is a command-line tool for creating, editing, and getting information about GIF images and animations. In this tutorial we learn how to install gifsicle on CentOS 7. gifsicle is Powerful program for manipulating GIF images and animations Introduction
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