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Haar Cascade Visualizer

Posted on June 4, 2010, in AH Projects, Code, ITP, Thesis

haarcascade_frontalface_default

Open source app for visualizing Haar cascade files used for object detection

Download: Mac version | PC Version (both include application and source code)

The Haar cascade visualizer takes input from the OpenCV (type_id=”opencv-haar-classifier”) formatted XML files used for object detection and outputs each stage of the cascade as a separate TIF file. A set of cascade files ships with OpenCV, which can be download from WillowGarage

Haar Cascade Visualizer Screenshot

Features

Outputs all stages as .tif files
Option for creating preview of 1st feature for each stage (much faster)
Runs on Mac, should run on Windows (not tested yet)

Edit Source Code To:

Change margins, max width, and images per row
Change output type from TIF to JPG
Change background image

Notes

Feel free to use for any project
Email if you like it or have a great cascade to share
NB: Some cascades have stages with a lot of features. If you’re using a large cascade be prepared for high CPU usage.
Built with Processing