pngjs-image - JavaScript-based PNG image encoder, decoder, and manipulator

  •        108

JavaScript-based PNG image encoder, decoder, and manipulator

https://github.com/yahoo/pngjs-image

Dependencies:

iconv-lite : ^0.4.8
pako : ^0.2.6
pngjs : 2.3.1
request : ^2.55.0
stream-buffers : 1.0.1
underscore : 1.7.0

Tags
Implementation
License
Platform

   




Related Projects

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.

imaging - Simple Go image processing package

  •    Go

Package imaging provides basic image manipulation functions (resize, rotate, flip, crop, etc.). This package is based on the standard Go image package and works best along with it.Image manipulation functions provided by the package take any image type that implements image.Image interface as an input, and return a new image of *image.NRGBA type (32bit RGBA colors, not premultiplied by alpha).

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.

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.


Pixels.JS - An image filtering library, containing over 70 image filters for use in-browser and with Node

  •    Javascript

Pixels.JS is an image filtering library with over 70 photo filters for use in the browser or with Node.JS. Image filtering comprises vintage filters, solarizers, inverters, and over ninety more. You can explore these in the Flashback web app, which makes use of the library.

Freemat - A Matlab alternative

  •    C++

FreeMat is a free environment for rapid engineering and scientific prototyping and data processing. It is similar to commercial systems such as MATLAB and IDL. It has built in arithmetic for manipulation of all supported data types, N-dimensional array manipulation, 2D and 3D plotting and image display, Visualization, Image manipulation, and as well as parallel programming.

PNG to 32bit BMP

  •    

This simple application converts PNG image files to 32 bit BMP image files which support transparency (alpha value).

laravel-image - Image manipulation library for Laravel 4 and 5 based on Imagine (https://github

  •    PHP

Laravel Image is an image manipulation package for Laravel 4 and 5 based on the PHP Imagine library. It is inspired by Croppa as it can use specially formatted urls to do the manipulations. It supports basic image manipulations such as resize, crop, rotation and flip. It also supports effects such as negative, grayscale, gamma, colorize and blur. You can also define custom filters for greater flexibility. The main difference between this package and other image manipulation libraries is that you can use parameters directly in the url to manipulate the image. A manipulated version of the image is then saved in the same path as the original image, creating a static version of the file and bypassing PHP for all future requests.

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.

libclaw

  •    C++

CLAW is a C++ Library providing various tools in different domains, like a Tweener framework, Beacute;zier curves manipulation, a map with multiple value types, a binary search tree container implemented as an AVL and an implementation of the sockets as std::stream. The library also includes a set of classes to easily load and write png, jpeg, gif files and other image formats. Finally, a part of the library is devoted to artificial intelligence in games and includes a generic alpha-beta a

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.

pngquant - Lossy PNG compressor — pngquant command and libimagequant library

  •    C

pngquant is a PNG compresor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format with alpha channel (often 60-80% smaller than 24/32-bit PNG files). Compressed images are fully standards-compliant and are supported by all web browsers and operating systems.This is the official pngquant repository. The compression engine is also available as an embeddable library.

pngquant - Lossy PNG compressor — pngquant command and libimagequant library

  •    C

pngquant is a PNG compressor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format with alpha channel (often 60-80% smaller than 24/32-bit PNG files). Compressed images are fully standards-compliant and are supported by all web browsers and operating systems. This is the official pngquant repository. The compression engine is also available as an embeddable library.

Invoke-PSImage - Embeds a PowerShell script in the pixels of a PNG file and generates a oneliner to execute

  •    PowerShell

Invoke-PSImage takes a PowerShell script and embeds the bytes of the script into the pixels of a PNG image. It generates a oneliner for executing either from a file of from the web (when the -Web flag is passed). The least significant 4 bits of 2 color values in each pixel are used to hold the payload. Image quality will suffer as a result, but it still looks decent. The image is saved as a PNG, and can be losslessly compressed without affecting the ability to execute the payload as the data is stored in the colors themselves. It can accept most image types as input, but output will always be a PNG because it needs to be lossless.

image - PHP Image Manipulation

  •    PHP

Intervention Image is a PHP image handling and manipulation library providing an easier and expressive way to create, edit, and compose images. The package includes ServiceProviders and Facades for easy Laravel integration. Refer to the official documentation to learn more about Intervention Image.

pesdk-android-demo - A fully customizable photo editor for your app.

  •    Java

The PhotoEditor SDK is a powerful and multifaceted tool which enables you to equip your Android application with high-performant photo editing capabilities. The PhotoEditor SDK is written in Java and can easily be customized to entirely blend with your CI and provide your users with the exact feature set your use-case requires. The SDK ships with a large variety of filters, covering all state of the art style- and mood settings that can be previewed in real-time. Unlike other apps that allow a live preview of filters, the PhotoEditor SDK even provides a live preview when using high-resolution images.

glide - Wonderfully easy on-demand image manipulation library with an HTTP based API.

  •    PHP

Glide is a wonderfully easy on-demand image manipulation library written in PHP. Its straightforward API is exposed via HTTP, similar to cloud image processing services like Imgix and Cloudinary. Glide leverages powerful libraries like Intervention Image (for image handling and manipulation) and Flysystem (for file system abstraction).Full documentation can be found at glide.thephpleague.com.

LiipImagineBundle - Symfony Bundle to assist in imagine manipulation using the imagine library

  •    PHP

This bundle provides an image manipulation abstraction toolkit for Symfony-based projects. Filter Sets: Using any Symfony-supported configuration language (such as YML and XML), you can create filter set definitions that specify transformation routines. These definitions include a set of filters and post-processors, as well as other optional parameters.