libjpeg-turbo - Main libjpeg-turbo repository

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libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems. On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface.

jpeg imaging-library libjpeg

essential-image-optimization - Essential Image Optimization - an eBook

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Bring up a terminal and type node --version. Node should respond with a version at or above 0.10.x. If you require Node, go to nodejs.org and click on the big green Install button.

images image-processing image-optimization jpeg png gif compression image-compression image optimisation webp mozjpeg

Flyimg - Microservice to resize and crop images on the fly

•    PHP

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Image resizing, cropping and compression on the fly with the impressive MozJPEG compression algorithm. One Docker container to build your own Cloudinary-like service.You pass the image URL and a set of keys with options, like size or compression. Flyimg will fetch the image, convert it, store it, cache it and serve it. The next time the request comes, it will serve the cached version.

image image-processing resize-images crop-image docker jpeg png webp gif compression-algorithm flysystem microservice mozjpeg imagemagick compression crop face-detection image-api image-service

ImageOptim - GUI image optimizer for Mac

•    HTML

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ImageOptim is a GUI for lossless image optimization tools: PNGOUT, AdvPNG, Pngcrush, OptiPNG, JpegOptim, MozJPEG, jpegtran, Gifsicle and SVGO.To get started, open imageoptim/ImageOptim.xcodeproj. It will automatically download and build all subprojects when run.

gui image-optimization performace accelerator minification imageoptim mac-app imaging-library

imaginary - Fast, simple, stateless HTTP microservice for high-level image processing with first-class support for Docker & Heroku

•    Go

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Fast HTTP microservice written in Go for high-level image processing backed by bimg and libvips. imaginary can be used as private or public HTTP service for massive image processing with first-class support for Docker & Fly.io. It's almost dependency-free and only uses net/http native package without additional abstractions for better performance.

image image-processing resize-images libvips crop-image microservice docker watermark jpeg png webp gif go-library imaging-service thumbnail-service thumbnail

guetzli - Perceptual JPEG encoder

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Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg. Guetzli generates only sequential (nonprogressive) JPEGs due to faster decompression speeds they offer.There's also a Bazel build configuration provided. If you have Bazel installed, you can also compile Guetzli by running bazel build -c opt //:guetzli.

jpeg-encoder

CharLS, a JPEG-LS library

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An optimized implementation of the JPEG-LS standard for lossless and near-lossless image compression. JPEG-LS is a low-complexity standard that matches JPEG 2000 compression ratios. In terms of speed, CharLS outperforms open source and commercial JPEG LS implementations.

codec compression graphics imaging jpeg

Leanify - lightweight lossless file minifier/optimizer

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Leanify is a lightweight lossless file minifier/optimizer. It removes unnecessary data (debug information, comments, metadata, etc.) and recompress the file to reduce file size. It will not reduce image quality at all. I'm not respossible for any consequence of using Leanify.

recompress lossless minifier optimizer minify compression zopfli mozjpeg png jpeg zip svg ico xml tar epub fb2 data-uri gzip swf

adept-jpg-compressor - A Bash script to automate adaptive JPEG compression using common CLI tools

•    Shell

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When compressing JPEG images, the same compression level is used on the entire image. However, most JPEG images contain homogeneous and heterogeneous areas, which are varyingly well-suited for compression. Compressing heterogeneous areas in JPEGs to reduce filesize causes compression artefacts due to the lossy nature of JPEG compression. This script adaptively alters the compression level for areas within JPEGs (per-block) to achieve optimized file size while maintaining a decent visual quality. This script achieves a significantly reduced file size compared to standard tools such as cjpeg while maintaining good visual quality, as can be measured via SSIM. This is good news for the Web Performance and thus Web Developer community to achieve a great user experience on websites.

Scrimage - Scala image processing library

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Scrimage is a consistent, idiomatic, and immutable scala library for manipulating and processing of images. The aim of the this library is to provide a quick and easy way to do the kinds of image operations that are most common, such as scaling, rotating, converting between formats and applying filters. It is not intended to provide functionality that might be required by a more "serious" image processing application - such as face recognition or movement tracking.

jpeg filters image image-processing imaging-library

Imagine - 🖼️ PNG/JPEG optimization app for macOS, Windows and Linux.

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Imagine is a desktop app for compression of PNG and JPEG, with a modern and friendly UI. Save for web.

image-compression save-for-web jpegmini pngquant tinypng linux-app webp jpeg desktop cross-platform

grunt-contrib-imagemin - Minify PNG and JPEG images.

•    Javascript

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Select optimization level between 0 and 7. The optimization level 0 enables a set of optimization operations that require minimal effort. There will be no changes to image attributes like bit depth or color type, and no recompression of existing IDAT datastreams. The optimization level 1 enables a single IDAT compression trial. The trial chosen is what OptiPNG thinks it’s probably the most effective. The optimization levels 2 and higher enable multiple IDAT compression trials; the higher the level, the more trials.

gruntplugin compress gif image img jpeg jpg minify png svg

jpeg-js - A pure javascript JPEG encoder and decoder for node.js

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Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

jpeg jpg encoder decoder codec image js

Sharp - High performance Node.js image processing

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The typical use case for this high speed Node.js module is to convert large images in common formats to smaller, web-friendly JPEG, PNG and WebP images of varying dimensions.Resizing an image is typically 4x-5x faster than using the quickest ImageMagick and GraphicsMagick settings.

webp image-processing jpeg png tiff svg libvips exif icc image performance crop resize overlay gif dzi thumbnail

Cornerstone - JavaScript library to display interactive medical images including but not limited to DICOM

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Cornerstone.js delivers a complete web based medical imaging platform. The easiest way to build interactive medical imaging web applications. It supports High performance image display. Multi-threaded image decoding in Web Workers, Robust DICOM Parsing. Supports all transfer syntaxes. Supports WADO-URI and WADO-RS.

cornerstone dicom medical-imaging medical imaging

IJG - Independent JPEG Group

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IJG is an informal group that writes and distributes a widely used free library for JPEG image compression. JPEG is designed for compressing either full-color or gray-scale images of natural, real-world scenes.

jpeg image image-library image-compression image-encoding

Brunsli - Lossless JPEG repacking library

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Brunsli is a lossless JPEG repacking library. Brunsli allows for a 22% decrease in file size while allowing the original JPEG to be recovered byte-by-byte. Brunsli has been specified as the lossless JPEG transport layer in the Committee Draft of JPEG XL Image Coding System and is ready to power faster and more economical transfer and storage of photographs.

jpeg jpg compression jpeg-repacker lossless

libjpeg

•    CSharp

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libjpeg is a free software library written for JPEG image compression.

Concorde - Download and decode progressive JPEGs on iOS.

•    Objective-C

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This is a framework for downloading and decoding progressive JPEGs easily on iOS and OS X. It uses libjpeg-turbo as underlying JPEG implementation. We vendor version 1.4.0 of the static library from libjpeg-turbo's official release for convenience. and replace your usage of UIImageView with CCBufferedImageView to automatically use progressive JPEGs if you have been using the UIImageView category before. This will work regardless of the original format of your files due to the image transformation functionality of the delivery API.

ImageSharp - A cross-platform library for the processing of image files; written in C#

•    CSharp

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ImageSharp is a new, fully featured, fully managed, cross-platform, 2D graphics API. Without the use of System.Drawing we have been able to develop something much more flexible, easier to code against, and much, much less prone to memory leaks. Gone are system-wide process-locks; ImageSharp images are thread-safe and fully supported in web environments. Built against .Net Standard 1.1 ImageSharp can be used in device, cloud, and embedded/IoT scenarios.

image-processing drawing jpeg gif bmp png netcore exif graphics imaging-library