Read me if you can

ringzer0ctf

Task: a timed distorted-text CAPTCHA (6 white chars over a colorful gradient) that must be read and submitted within a 2-second, same-session deadline. Solution: color/saturation masking + connected-component cleanup + column segmentation, then nearest-neighbor Hamming template matching against a self-built, hand-labeled glyph DB, all in one requests.Session under 2s.