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libjpeg

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  Analyzed almost 4 years ago

A widely used free library for JPEG image compression.

58K lines of code

0 current contributors

over 14 years since last commit

223 users on Open Hub

Activity Not Available
4.17241
   
0 Reviews
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Mostly written in C
Licenses: IJG
Tags compression graphics image jpeg library lossy raster

libjpeg-turbo

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  Analyzed 1 day ago

libjpeg-turbo is a high-speed version of libjpeg for x86 and x86-64 processors which uses SIMD instructions (MMX, SSE2, etc.) to accelerate baseline JPEG compression and decompression. libjpeg-turbo is generally 2-4x as fast as the unmodified version of libjpeg, all else being equal. ... [More] libjpeg-turbo was originally based on libjpeg/SIMD by Miyasaka Masaru, but the TigerVNC and VirtualGL projects made numerous enhancements to the codec, including improved support for Mac OS X, 64-bit support, support for 32-bit and big endian pixel formats (RGBA, ABGR, etc.), accelerated Huffman encoding/decoding, and various bug fixes. The goal was to produce a fully open source codec that could replace the partially closed source TurboJPEG/IPP codec used by VirtualGL and TurboVNC. [Less]

135K lines of code

5 current contributors

6 days since last commit

9 users on Open Hub

Very Low Activity
5.0
 
0 Reviews
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Mostly written in C
Licenses: IJG, zlib_libpng
Tags arm_neon compression image jpeg library lossy mips_dsp mmx simd sse2

Imebra

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  Analyzed over 2 years ago

Imebra is a multiplatform open source C++ Dicom library. The library can handle Dicom3, NEMA and Jpeg files and supplies both high-level and raw access to the loaded data. The embedded images can be easily decompressed or converted to other color formats or bit depth; writing Dicom Viewers or ... [More] other applications is a quick and easy task. Imebra also supports the Unicode standard (on the fly conversion to/from Dicom charsets) and the delayed-loading of large tags. [Less]

67.1K lines of code

1 current contributors

over 2 years since last commit

3 users on Open Hub

Activity Not Available
5.0
 
0 Reviews
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Mostly written in C++
Licenses: commercia..., GPL2
Tags c++ dicom jpeg library lossless lossy medical

pngquant

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  Analyzed 1 day ago

The pngquant PNG optimisation tool. It converts 24/32-bit PNG files to smaller, paletted PNG8 files with alpha transparency.

6.8K lines of code

6 current contributors

26 days since last commit

3 users on Open Hub

Low Activity
5.0
 
0 Reviews
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Mostly written in Rust
Licenses: commercia..., gpl3
Tags compression imageprocessing lossy palette png png_8 pngquant quantization rgba

musepack

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  Analyzed almost 4 years ago

Musepack or MPC is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160–180 (manual set allows bitrates up to 320) kbit/s. It was formerly known as MPEGplus, MPEG+ or MP+.

329K lines of code

0 current contributors

over 7 years since last commit

2 users on Open Hub

Activity Not Available
5.0
 
0 Reviews
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Mostly written in C
Licenses: bsd, lgpl
Tags audio codec compression data_formats lossy music sound

JPEG

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  Analyzed 1 day ago

JPEG implementation configured and build by CMake

82K lines of code

0 current contributors

about 15 years since last commit

1 users on Open Hub

Inactive
5.0
 
0 Reviews
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Mostly written in C
Licenses: BSD-3-Clause
Tags ijg j2k jasper jpeg jpeg2000 jpegls libjpeg lossless lossy openjpeg

PNG posterizer

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  Analyzed 1 day ago

True-color lossy PNG compressor based on optimal posterization.

1.22K lines of code

0 current contributors

9 months since last commit

1 users on Open Hub

Very Low Activity
0.0
 
0 Reviews
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Mostly written in C
Licenses: gpl3_or_l...
Tags compression lossy png rgba

qjpegrest

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  Analyzed almost 4 years ago

Graphical application to aid in the restoration of JPEG compressed images, in order to reduce the noise added by the JPEG lossy compression, through the implementation of restoration algorithms and the manual tuning of their parameters.

51.1K lines of code

0 current contributors

almost 15 years since last commit

0 users on Open Hub

Activity Not Available
0.0
 
0 Reviews
I Use This
Mostly written in C
Licenses: gpl
Tags algorithms c++ image jpeg lossy qt quality restoration