Using OpenCV coupled with Microsoft Visual Studio I have worked on image processing algorithms.

Firstly, I implemented edge detection using convolution with Sobel operators in order to recreate the canny function. Post processes such as non-maximum supression and hysteresis was applied to reduce noise.

Secondly, object detection was implemented using OpenCV functions. The aim was to detect different coloured tennis balls and draw a circle around them. Thresholding, morphological operations and circle Hough transform was applied to detect all tennis balls.

 

This program could later be developed to teach a robot the differences in tennis balls and how to sort them in terms of their colour.