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Project head: Dr. Dmitriy Vatolin
Testing, charts, analysis: Sergey Grishin
Translating: Daria Kalinkina
Verification: Stas Soldatov

About comparison

• Number of test sequences: 9
• Number of color spaces considered: 3
  • RGB
  • YUY2
  • YV12
• Number of codecs tested: 15
  1. Alpary v2.0
  2. AVIzlib v2.2.3
  3. CamStudio GZIP v1.0
  4. CorePNG v0.8.2
  5. FFV1 ffdshow 08/08/04
  6. GLZW v1.01
  7. HuffYUV v2.1.1
  8. Lagarith v1.0.0.1
  9. LEAD JPEG v1.0.0.1
  10. LOCO v0.2
  11. MindVid v1.0 beta 1
  12. MSUlab beta v0.2.4
  13. MSUlab v0.5.2
  14. PicVideo JPEG v.2.10.0.29
  15. VBLE beta

See also:

• Big Codecs Comparison (May 2003)
• MPEG-4 AVC/H.264 Comparison (January 2005)

About the comparison of lossless codecs

The name of this video codec category declares full quality losses absence - the decompressed video stream should be completely identical to original. Output quality is same for all codecs. Absolute absence of losses is a very strong requirement, therefore it is often hard to achieve compression ratios above 3:1. Some of the tested codecs have an opportunity of work in "lossy" mode; it allows to reach considerably higher compression degree with rather small losses of quality. However, only "fully lossless" mode is considered in the current comparison. The only parameter of comparison is the compression level.

Many codecs give an opportunity to adjust the parameter speed/compression ratio; it allows to tune the codec for the specific task (real-time capture or the rendering requiring loss minimization). Only maximum compression ratio result is considered in current work.

Some codecs are capable to accept input data in several color spaces (RGB, YUY2, YV12, etc.), however, compression is not always "lossless". Some codecs "silently" perform the conversion of color spaces, thus, raising a degree of compression. Quality losses coming out of such conversions are not visible, but surely exist. In the given testing work codecs is compared separately for various color spaces, thus in each color space full absence of losses is guaranteed!

Main parts of the comparison:

1. Information about codecs:
   • Vendor and version
   • Color space support
   • Logo presence in compressed video
   • Registration requirements
   and test sequences:
   • Sequence name
   • Resolution
   • Number of frames
2. Brief codecs description with screenshots
3. Codecs comparison with analysis of compression ratios for each sequence
4. Codecs comparison with analysis of total compression ratios for each codec

Diagram from 3 part of comparison

Compression ratios for codecs for RGB

Compression ratios for codecs for YUY2

Compression ratios for codecs for YV12

Download

• Download MSU Lossless Video Codecs Comparison (852KB, PDF)
• Download MSU Lossless Video Codecs Comparison (755KB, ZIP)

Other materials

Video resources:

Public MSU video filters Here are available VirtualDub and AviSynth filters. For a given type of digital video filtration we typically develop a family of different algorithms and implementations. Generally there are also versions optimized for PC and hardware implementations (ASIC/FPGA/DSP). These optimized versions can be licensed to companies. Please contact us for details via video(at)graphics.cs.msu_ru. MSU Cartoon Restore (New!) MSU Noise Estimation MSU Frame Rate Conversion MSU Image Restoration MSU Denoising (Top!) MSU Old Cinema MSU Deblocking (Top!) MSU Smart Brightness and Contrast (Top!) MSU Smart Sharpen (Top!) MSU Noise generation MSU Noise estimation MSU Motion Estimation Information MSU Subtitles removal (New!) MSU Logo removal (Top!) MSU Deflicker (Top!) MSU Field Shift Fixer AviSynth plug-in MSU StegoVideo MSU Cartoonizer (Top!) MSU SmartDeblocking (Top!) MSU Color Enhancement MSU Old Color Restoration MSU TV Commercial Detector (New!) MSU filters FAQ (Read me!) MSU filters statistics	MSU filters for companies We are working with Intel, Samsung, RealNetworks and other companies on adapting our filters other video processing algorithms for specific video streams, applications and hardware like TV-sets, graphics cards, etc. Some of such projects are non-exclusive. Also we have internal researches. Please let us know via video(at)graphics.cs.msu_ru if you are interested in acquiring a license for such filters or making a custom R&D project on video processing, compression, computer vision. Automatic Objects Segmentation Semiautomatic Objects Segmentation New Frame Rate Conversion New Deinterlacer MSU-Samsung Deinterlacing Project Digital TV Signal Enhancement Old Film Recovery Tuner TV Restore Panorama Video2Photo SuperResolution SuperPrecision MSU-Samsung image and video resampling MSU-Samsung Frame Rate Conversion Motion Phase filter Deshaker (video stabilization) Film Grain/Degrain filter Deblurring filter Video Content Search
Codecs comparisons Objective and subjective quality evaluation tests for video and image codecs 5-th MPEG4-AVC/H.264 Comparison (New!) Codec Analysis for Companies: (New!) Research and Development Projects (New!) MSU Video Codecs Scoring System (New!) MSU Video Quality Measurement Tool (New!) Options Analysis of Codec x264 (New!) 4-th MPEG4-AVC/H.264 Comparison (Top!) Lossless Video Codecs Comparison 2007 3-rd MPEG4-AVC/H.264 Comparison HD Photo and JPEG 2000 Comparison MPEG-2 Decoders Crash Test (Top!) Subjective Compar. of 4 Modern Codecs (Top!) 2-nd MPEG-4 AVC/H.264 Comparison (Top!) FAQ of 2-nd H.264 Comparison 1-st MPEG-4 AVC/H.264 Codecs Comparison FAQ of 1-st H.264 Comparison JPEG 2000 Image Codecs Comparison (Top!) Lossless Video Codecs Comparison 2004 MPEG-4 SP/ASP Codecs Comparison (Top!) Video codecs comparison (old) Ext. link: x264 parameters efficiency comparison	MSU Video Quality Measurement tools Programs with different objective and subjective video quality metrics implementation MSU Video Quality Measurement Tool - objective metrics for codecs and filters comparison (New!) (Top!) Implemented metrics short info: PSNR, Delta, MSAD, MSE, SSIM, VQM, MSU Blurring Metric, MSU Blocking Metric MSU Brightness Flicking Metric MSU Brightness Independent PSNR MSU Drop Frame Metric MSU Noise Estimation Metric MSU Scene Change Detector MSU VQMT FAQ MSU Human Perceptual Quality Metric - several metrics for exact visual tests (Top!) Implemented metrics short info: ITU-R BT.500-11: DSIS, DSCQS I & II, SCACJ; EBU: SAMVIQ; MSUCQE MSU PVQ Metric Tool FAQ
Video codecs projects Different research and development projects on video codecs MSU Lossless Video Codec (Top!) MSU Screen Capture Lossless Codec (Top!) MSU MPEG-2 Video Codec x264 Codec Improvement	Other Other information Crazy gallery (filters screams :) License for commercial usage of MSU VideoGroup Public Software (please be careful: some soft like metrics has another license!)

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Last updated: 07-December-2007

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Project sponsored by YUVsoft Corp.

Project supported by MSU Graphics & Media Lab