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rick rolling in ascii!
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| import curses | |
| from itertools import product | |
| from time import time, sleep | |
| import cv2 | |
| import numpy as np | |
| path = "never_gonna.mp4" | |
| ASCII_MAP = np.array(list(' .,:;<+*LtCa4U80dQM@')) | |
| SCALE = len(ASCII_MAP) / 255 | |
| VALUES = [255 // 5 * i for i in range(6)] | |
| COLOR_MAP = np.array([min(range(6), key=lambda index: abs(VALUES[index] - color)) for color in range(256)]) | |
| BASE_6 = np.array([36, 6, 1]) | |
| def init_curses(screen): | |
| curses.noecho() | |
| curses.cbreak() | |
| screen.nodelay(1) | |
| curses.curs_set(0) | |
| curses.start_color() | |
| for x, y, z in product(range(6), repeat=3): | |
| curses.init_color(x * 6 ** 2 + y * 6 + z + 17, *(round(1000 / 255 * VALUES[i]) for i in (z, y, x))) | |
| for i in range(6 ** 3): | |
| curses.init_pair(i + 1, i + 17, 0) | |
| screen.clear() | |
| def main(screen): | |
| init_curses(screen) | |
| curses_pairs = np.array([curses.color_pair(i) for i in range(1, 6 ** 3 + 1)]) | |
| h, w = screen.getmaxyx() | |
| dim = w - 1, h | |
| movie = cv2.VideoCapture(path) | |
| start = time() | |
| while screen.getch() != ord('q'): | |
| read_flag, frame = movie.read() | |
| if not read_flag: | |
| break | |
| color = cv2.resize(frame, dim) | |
| grayscale = ASCII_MAP[ (SCALE * cv2.cvtColor(color, cv2.COLOR_BGR2GRAY)).astype(int) ] | |
| pairs = curses_pairs[(BASE_6 * COLOR_MAP[color]).sum(axis=-1)] | |
| it = np.nditer((grayscale, pairs), ["multi_index"]) | |
| for char, pair in it: | |
| y, x = it.multi_index | |
| screen.addstr(y, x, str(char), pair) | |
| delta = movie.get(cv2.CAP_PROP_POS_MSEC) / 1000 - (time() - start) | |
| if delta > 0: | |
| sleep(delta) | |
| screen.refresh() | |
| movie.release() | |
| if __name__ == '__main__': | |
| curses.wrapper(main) |
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you are evil 🤣