Ellipse Detection using RANSAC

Overview

A program that detects elliptical shape in an image. The system pipeline :

• Downscaling an image for shorter processing time
• Convert the input image into an edge map using Canny edge detection
• Two pass connected components labelling to remove small blobs and noises
• Run ellipse fitting with RANSAC on the image

Running the program

To process a single image

python detector.py --<filename> --display

To process a folder of images

python detector.py --<dirname> -- display 

Input format

• Single JPG image.
• A folder of JPG images.

Sample

Input : Output :

Requirement

• Python 3.8
• OpenCV
• matplotlib