https://github.com/saravanabalagi/phog

Pyramid Histogram of Gradients descriptor implemented in both C++ and Python
https://github.com/saravanabalagi/phog

computer-vision global-descriptor image-descriptor implementation phog

Last synced: about 1 month ago
JSON representation

Pyramid Histogram of Gradients descriptor implemented in both C++ and Python

• Host: GitHub
• URL: https://github.com/saravanabalagi/phog
• Owner: saravanabalagi
• License: mit
• Created: 2022-06-10T12:50:57.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-08-03T21:44:13.000Z (almost 3 years ago)
• Last Synced: 2025-03-23T23:34:16.896Z (2 months ago)
• Topics: computer-vision, global-descriptor, image-descriptor, implementation, phog
• Language: C++
• Homepage:
• Size: 316 KB
• Stars: 3
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Pyramid Histogram of Gradients (PHOG)

[![language](https://img.shields.io/badge/language-python-blue.svg)]()

[![language](https://img.shields.io/badge/language-c++-blue.svg)]()

[![The MIT License](https://img.shields.io/badge/license-MIT-green.svg)](LICENCE)

PHOG descriptor implemented in both C++ and Python. An example [image](data/image_sample.jpg) from City Centre Dataset is provided in the [data](data) folder along with the reference [descriptor](data/image_sample.jpg) for testing purposes.

Python Project dependencies (Poetry):

- numpy

- opencv-python

C++ Project dependencies (CMake):

- [OpenCV](https://opencv.org/)

- [cnpy](https://github.com/saravanabalagi/cnpy) (for numpy ops)

- [zlib](https://www.zlib.net/) (for npz compression)

- [boost](https://www.boost.org/) (for reading files)

- [OpenMP](https://www.openmp.org/) (for multiprocessing)

As can be seen in the results, the implementation produces descriptors that are accurate upto 3 decimals.