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README.md

Calyp

Enhanced YUV video player based on Qt focusing on image/video analysis

Features

  • Support for libavformat and libavcodec;
  • Support for wide range of raw video formats;
  • Support up to 16 bits per pixel
  • Support for OpenCV image/video processing library
  • Advanced frame zoom with easy to use pan function
  • Synchronized zoom across several videos (perfect for comparison operations)
  • Useful information in status bar, e.g., pixel information Useful sidebars with frame information, e.g., frame histogram
  • Constant growing libs for stream and frame processing (CalypStream and CalypFrame)
  • Advanced API for frame/video processing algorithms
  • Frame level quality measurement API based on the CalypFrame class
  • Powefull command-line tool for quality and frame processing algorithms (uses the referred APIs)

Modules

  • CalypLib: Low level library
  • CalypModules: Abstract interface for frame processing modules
  • Calyp: High level graphical interface
  • CalypTools: High level command line interface

Supported Quality Metrics

  • PSNR
  • SSIM
  • MSE

Frame Processing Modules

  • Component filtering
  • Frame difference, crop, shift, binarization and rotation
  • Sub-sampling operations
  • Measuring modules
  • Modules based on opencv:
    • Disparity estimation
    • Motion estimation

Supported Formats

  • Supports for the following pixel formats:
    • YUV: 444, 420, 422
    • RGB
    • Gray
  • Supported formats:
    • Raw video:
      • YUV: 444, 420, 422
      • RGB
      • Gray
    • Joint Photographic Experts Group (jpeg)
    • Portable Map (ppm, pgm)
  • Partially supported formats:
    • Portable Network Graphics (png)
    • Windows Bitmap (bmp)
    • Tagged Image File Format (tiff)

Developers

Binaries and Build

  • Packages are available for Debian and openSUSE
  • Daily builds available for Windows and Linux in our SourceForge page
  • Dependencies
    1. an ordinary C++ development environment (g++, make, C++ libraries and headers, ...)
    2. cmake
    3. a Qt development environment: QtCore, QtGui, QtWidgets, QtPrintSupport and QtConcurrent (version 4 or higher)
    4. Optional: QtDBus, OpenCV, FFmpeg
  • List of required commands
mkdir build
cd build
cmake -DUSE_QT4=OFF -DUSE_FFMPEG=ON -DUSE_OPENCV=ON ..  (for FFmpeg and OpenCV support)
make
make install