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

• Joao Carreira ([email protected])
• Lui­s Lucas ([email protected])

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