Line removal in image captcha using Python

Question

I had used this link - How to remove line from captcha completely and edited the code provided to remove lines from a dummy captcha that I have given below

Answer 1

In this special case it seems density of lines is less than characters density. so by applying some thresholding methods you can remove line:

For example the following line give you this:

retval, image = cv2.threshold(image, 12, 255, cv2.THRESH_BINARY)

later by applying some noise removal methods, like median (from your own code), you can get this result: