: Using OpenCV to remove background noise, lines, or dots from the image.

: Running the processed image through a trained model.

Custom-trained CNNs (Convolutional Neural Networks) for specific CAPTCHA types.

CAPTCHAs (Completely Automated Public Turing test to tell Computers and Humans Apart) have evolved significantly. To solve them using Python, developers generally use three "exclusive" approaches found on GitHub: Best for simple alphanumeric images.

GitHub remains the premier hub for because of the collaborative nature of the community. As soon as a new CAPTCHA defense is implemented, a developer somewhere typically uploads a bypass or a training model to counter it.