I have this practice project that allows the user to draw on the screen as they touch with their fingers. Very simple App I did as an exercise way back. My little cousin took the liberty of drawing...

how to detect open and closed shapes in opencv. These are simple sample shapes I want to detect. I have detected rectangle using findContours and approxPolyDP and than checking for angle between...

I need the ability to verify that a user has drawn a shape correctly, starting with simple shapes like circle, triangle and more advanced shapes like the letter A. I need to be able to calcu...

I implemented a Python script for recognizing shapes in hand drawings. However, the script recognizes more shapes than needed. Here is an example picture: and this is the output of the script: ...

I am working on a shape recognition app. At this moment a set of points (x,y) is determined by corner detector (red points, img. 2.). Four of these points (in red frames, img. 2.) are vertices of a...