What Is This Project

• Objective: Perfromance comparison of ZNCC block matching implemented by C (without special technique) and ISPC.
• Target platform : Intel Clear Linux, ISPC 1.16.1, gcc 11.2.1

Directory Structure

• ZnccWork2
  • PerfTest : includes main() and helper functions for performance test
  • UnitTest : Unit tests for low level components in ZnccC and ZnccISPC
  • ZnccC : C11 implementation
  • ZnccISPC : ISPC implementation
  • makefile
• Tests creating directories
  • WorkData : Test data, intermediate work data, visualized 2-D map, etc.

Dependencies

• OpenCV 4: core.hpp, img_proc.hpp, img_codes.hpp, posix standard APIs
• ISPC is assumed to be installed at a location in PATH variable. The code is tested with ver. 1.16.1
• C compiler is clang ver. 11.1.0.

Subsidiary documents

• Image.md : Details of C struct ImageC_t and ISPC struct Image
• ZnccHalf.md : Details of C struct ZnccHalfC_t and ISPC struct ZnccHalf
• Summed-area-table.md : Details usage of summed area table