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

•    Go

---

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 & Heroku. It's almost dependency-free and only uses net/http native package without additional abstractions for better performance.Supports multiple image operations exposed as a simple HTTP API, with additional optional features such as API token authorization, gzip compression, HTTP traffic throttle strategy and CORS support for web clients.

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

ImageMagick

•    C++

---

ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (over 100) including DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, and TIFF. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

image-processing image-identification library

Sharp - High performance Node.js image processing

•    Javascript

---

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 nodejs tiff svg libvips exif icc image performance crop resize overlay gif dzi thumbnail embed thumbnail-service api rest-api

bimg - Small Go package for fast high-level image processing powered by libvips C library

•    Go

---

Small Go package for fast high-level image processing using libvips via C bindings, providing a simple, elegant and fluent programmatic API.bimg was designed to be a small and efficient library supporting a common set of image operations such as crop, resize, rotate, zoom or watermark. It can read JPEG, PNG, WEBP natively, and optionally TIFF, PDF, GIF and SVG formats if libvips@8.3+ is compiled with proper library bindings.

libvips watermark crop-image image processing resize jpeg png webp crop image-processing go-library

mort - Storage and image processing server written in Go

•    Go

---

An S3-compatible image processing server written in Go. Still in active development.

image-processing storage docker jpeg png webp resize-images crop-image resize tranform libvips dockerfile s3 images microservice processing thumbnails

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

•    CSS

---

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

imgproxy - Fast and secure standalone server for resizing and converting remote images

•    Go

---

imgproxy is a fast and secure standalone server for resizing and converting remote images. The main principles of imgproxy are simplicity, speed, and security. imgproxy can be used to provide a fast and secure way to replace all the image resizing code of your web application (like calling ImageMagick or GraphicsMagick, or using libraries), while also being able to resize everything on the fly, fast and easy. imgproxy is also indispensable when handling lots of image resizing, especially when images come from a remote source.

image resize-images crop-image microservice docker jpeg png libvips

GraphicsMagick

•    C++

---

GraphicsMagick is the swiss army knife of image processing. It provides a robust and efficient collection of tools and libraries which support reading, writing, and manipulating an image in over 88 major formats including important formats like DPX, GIF, JPEG, JPEG-2000, PNG, PDF, PNM, and TIFF.

image-processing image-conversion image-identification library

lilliput - Resize images and animated GIFs in Go

•    C++

---

lilliput resizes images in Go. Lilliput relies on mature, high-performance C libraries to do most of the work of decompressing, resizing and compressing images. It aims to do as little memory allocation as possible and especially not to create garbage in Go. As a result, it is suitable for very high throughput image resizing services.

resize-images gif cgo images imageops image resized-images thumbnail image-resizer crop jpeg png webp

libvips - A fast image processing library with low memory needs.

•    C

---

libvips is a demand-driven, horizontally threaded image processing library. Compared to similar libraries, libvips runs quickly and uses little memory. libvips is licensed under the LGPL 2.1+. It has around 300 operations covering arithmetic, histograms, convolution, morphological operations, frequency filtering, colour, resampling, statistics and others. It supports a large range of numeric formats, from 8-bit int to 128-bit complex. Images can have any number of bands. It supports a good range of image formats, including JPEG, TIFF, PNG, WebP, FITS, Matlab, OpenEXR, PDF, SVG, HDR, PPM, CSV, GIF, Analyze, NIfTI, DeepZoom, and OpenSlide. It can also load images via ImageMagick or GraphicsMagick, letting it load formats like DICOM.

libvips python-bindings jpeg openslide imagemagick tiff gif webp graphicsmagick openexr

thumbor - Smart imaging service.

•    Python

---

thumbor is a smart imaging service. It enables on-demand crop, resizing and flipping of images. It also features a VERY smart detection of important points in the image for better cropping and resizing, using state-of-the-art face and feature detection algorithms (more on that in Detection Algorithms).

image-processing imaging-service thumbnail-service thumbnail api service crop resize

libvips - A fast image processing library with low memory needs.

•    C

---

libvips is a 2D image processing library. Compared to similar libraries, libvips runs quickly and uses little memory. libvips is licensed under the LGPL 2.1+. It has around 300 operations covering arithmetic, histograms, convolutions, morphological operations, frequency filtering, colour, resampling, statistics and others. It supports a large range of numeric formats, from 8-bit int to 128-bit complex. It supports a good range of image formats, including JPEG, TIFF, PNG, WebP, FITS, Matlab, OpenEXR, PDF, SVG, HDR, PPM, CSV, GIF, Analyze, DeepZoom, and OpenSlide. It can also load images via ImageMagick or GraphicsMagick.

libvips python-bindings jpeg openslide imagemagick tiff gif webp graphicsmagick openexr

imgp - Multi-core batch image resizer and rotator

•    Python

---

imgp is a command line image resizer and rotator for JPEG and PNG images. It can resize (or thumbnail) and rotate thousands of images in a go, at lightning speed, while saving significantly on storage. Powered by multiprocessing, an intelligent adaptive algorithm, recursive operations, shell completion scripts, EXIF preservation (and more), imgp is a very flexible utility with well-documented easy to use options.

image-processing image-compression image-manipulation image-optimization image-resize image-rotate multiprocessing standalone command-line terminal

Crunch - Insane(ly slow but wicked good) PNG image optimization

•    Python

---

Crunch is a tool for lossy PNG image file optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE compression algorithm encoding using the pngquant and zopflipng PNG optimization tools. This approach leads to a significant file size gain relative to lossless approaches at the expense of a relatively modest decrease in image quality (see example images below). Historical benchmarks with the files included in Cédric Louvrier's PNG Test Corpus versus other commonly used PNG optimization software are available in BENCHMARKS.md.

png png-compression compression image-quality image-processing images image image-compression pngquant zopflipng lossy lossy-compression

Scrimage - Scala image processing library

•    Scala

---

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

JPNG - JPNG is a bespoke image file format that combines the compression benefits of JPEG with the alpha channel support of a PNG file

•    Objective-C

---

In iOS and Mac OS apps there is typically a choice of two image formats: PNG format allows transparency but produces large image files and is unsuited to compressing images like photographs; JPEG is great for creating small files and provides a range of compression qualities to suit the subject matter, but doesn't allow for transparency. JPNG is a new image format that combines the best of both of the other formats. JPNG is not really a format in its own right, it's a simple file wrapper that combines a JPEG and PNG image within the same file. JPEG is used to efficiently compress the RGB portion of the image and PNG is used to store the alpha channel.

lwip - Light Weight Image Processor for NodeJS

•    C

---

This module provides comprehensive, fast, and simple image processing and manipulation capabilities.There are no external runtime dependencies, which means you don't have to install anything else on your system.

image buffer manipulate process resize scale rotate jpeg jpg png gif crop blur sharpen batch flip mirror border padding hue saturation lightness alpha transparency fade opacity contain cover

jimp - An image processing library written entirely in JavaScript for Node, with zero external or native dependencies

•    Javascript

---

An image processing library written entirely in JavaScript (i.e. zero external or native dependencies).

image image-processing image-manipulation png jpg jpeg bmp resize scale crop

iOS-WebP - Google's WebP image format decoder and encoder for iOS

•    Objective-C

---

Google's WebP image format offers better compression compared to PNG or JPEG, allowing apps to send/retrieve images with smaller file sizes, reducing request times and hopefully provide a better user experience. #Usage Don't forget to #import <iOS-WebP/UIImage+WebP.h>. There are 3 methods in iOS-WebP, converting images to WebP format, converting images from WebP format, and setting an image's transparency.

ImageMagick - ImageMagick 7

•    C

---

Use ImageMagick® o create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves. The functionality of ImageMagick is typically utilized from the command line or you can use the features from programs written in your favorite programming language. Choose from these interfaces: G2F (Ada), MagickCore (C), MagickWand (C), ChMagick (Ch), ImageMagickObject (COM+), Magick++ (C++), JMagick (Java), L-Magick (Lisp), NMagick (Neko/haXe), MagickNet (.NET), PascalMagick (Pascal), PerlMagick (Perl), MagickWand for PHP (PHP), IMagick (PHP), PythonMagick (Python), magick (R), RMagick (Ruby), or TclMagick (Tcl/TK). With a language interface, use ImageMagick to modify or create images dynamically and automagically.