Projects tagged ‘compression’ and ‘image’

libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 14 years. libpng is available as ANSI C source code and ... [More] requires zlib 1.0.4 or later (1.2.3 or 1.1.4 recommended due to potential security vulnerabilities in earlier versions). In addition to the main library sources, libpng includes the rpng, rpng2 and wpng demo programs, the pngminus demo program, a subset of Willem van Schaik's PngSuite test images, and Willem's VisualPng demo program. [Less]

A widely used free library for JPEG image compression.

In fact, this project is a university project and, as we needed some server to enable us to work concurrently, we decided to host it here in google code site. The software's aim is to help people ... [More] who are not used to compressing their photos before sending them by email. Consequently, the interface has to be as simple as possible so that the user won't have to answer 42 questions before getting his photo compressed. To make it a little more tricky, we decided to use Mozilla technologies (XUL/XPConnect/XPCOM) and we're trying to bind them with xnview and 7zip libraries. [Less]

In MASTER FIRST YEAR in Montpellier-II university, we must programe a image compressor, we don't decided tu use JPEG or GIF, we created the .grol format. the algorithm is simple: detect rectangles ... [More] in Y, Cr or Cb masks. (Y U V) and we store there rectangles in a binary file. we can open this binary file to open and read the images. today this project sent to our responsibles, the user interface is the principal goal. because with this, we can, like photoshpo or the gimp, activate the interactive mode, and display all the masks, and the statistics of the compressor. write in JAVA 5.0, this software is designed to the research. if you want to continue thisproject, send us a mail, and we will give you the password for upload (if you are interessed). this software contains some bugs, in the file-open operation. but operations of compression and visualisation is 100% operational. -- Jean-marie [Less]

PNG_IO is an Ada95 coder/decoder for Portable Network Graphics, allowing Ada95 programs to read and write PNG files. It is portable across machines and operating systems. It depends on Zlib and ... [More] Zlib_Ada to perform lossless compression and decompression. [Less]

This program compresses an image using a neural network. The refactoring stage for the initial import is finished and the code is as clean as it will ever be. The program is distributed under ... [More] revised BSD license and this means it can be used as the starting point for commercial applications. Any contribution/development/feedback is welcome! [Less]

PNGoo (pronounced pin-goo) is a GUI for various command-line PNG compressors. There's a preview release available on the downloads page. Feel free to post and issues / feature requests.

This project is about designing and implementing a new image compression scheme. It builds upon standard image compression techniques.

Program for experimental encoding and decoding images using a variation RLE algorithm.

IMComp is an Image COmpression Software based on MATLAB used to compress various JPEG images. This software is primarily useful for compressing images which are being taken with the help of Digital ... [More] Cameras and Mobile Phones Though using IMComp degrades the quality of images. So use of compressed images in not recommended for printing purposes. Image quality does not seem to be degraded if to be used for viewing purposes. This could be handy software for compressing images and using the compressed images to E-Mail which comes out to be a major drawback of Digital Cameras which produce large image size depending on the resolution of image and image being taken. Using this software compression ratio of 8 to 10 has been achieved during testing of the software. One needs a complete setup of MATLAB or MATLAB Component Runtime 7.6(or higher) for running it. Users are requested to report bugs at saurabh.nitj@gmail.com [Less]