┌────────────────────────────────────────────────────┐
│ directory or file              explanation         │
└────────────────────────────────────────────────────┘
 ppl.cv
  ├── .vscode                    Visual code settings
  ├── assets                     Asset files, such as pictures for testing
  ├── cmake                      CMake script
  │     ├─ x86.cmake             CMake configuration script for x86 architecture.
  │     ├─ cuda.cmake            CMake configuration script for cuda architecture.
  │     ├─ opencv.cmake          CMake configuration script for OpenCV.
  │     ├─ benchmark.cmake       CMake configuration script for benchmarks.
  │     ├─ unittest.cmake        CMake configuration script for unit tests .
  │     └─ deps.cmake            CMake configuration script for third-party dependencies.
  ├── src                        Source code directory
  │    └─ ppl
  │        └─ cv                 Common headers and source files are placed here
  │           ├─ cuda            All cuda source files are placed here
  │           ├─ x86             All x86 source files are placed here
  ├── .gitignore
  ├── CMakeLists.txt
  ├── README.md
  └── build.sh                   Shell scripts for building ppl.cv projects.