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ImageToBraille (Python 3)

Converts an image to Braille Unicode art

Running

python3 main.py IMAGE_FILE [-s SCALE_FACTOR -t LIGHTNESS_THRESHOLD -i]

The SCALE_FACTOR argument will pre-scale the image before it is converted. Values less than 1.0 will shrink the image, and values larger than 1.0 will enlarge the image.

The LIGHTNESS_THRESHOLD determines when a pixel should be given a dot or not. If the grayness value of the pixel is LESS than LIGHTNESS_THRESHOLD, then the pixel is too dark and the pixel will have no dot. Otherwise, that pixel will receive a dot. The possible values range from 0 to 255. If you enter a value higher or lower than this, it will simply be clipped to 255 or 0 respectively.

The -i argument will invert the input before converting to Braille. This is useful for dark background with light text and vice versa.

Example

⣿⣿⣿⣿⣿⣿⢀⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣄⣈⣿⣿⣿⠃⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⠹⢿⣿⣿⣿⣿⣿⡿⣟⢿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⡟⢀⣼⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⠈⠙⠿⣿⠏⣼⣿⡇⣿⣿⣿⣿⢿⣿⣿⣿ ⣿⡉⠨⣿⣿⡇⢀⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⣿⣿⣿⣿⣿⣿⣿⡟⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣠⣴⠟⢞⡛⢋⣠⣿⣿⣿⣿⢀⠻⣿⠏ ⣿⣿⣿⣿⣿⡇⢀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣶⣤⣤⣀⡀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣶⣿⣿⣿⡇⠸⣿⣿⣿⣿⣿⣿⣿⡇⢀⠈ ⡟⠁⢀⣿⣿⡇⢀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢿⣿⣿⠟⢛⠿⣿⣷⣄⢀⢀⢀⣀⣤⣤⣤⣤⣤⣄⡀⢀⢀⢰⣿⣿⣿⠉⢻⢀⢿⣿⣿⣿⣿⣿⡿⣇ ⣇⣠⠘⣿⢿⠅⢸⣿⣿⣿⣿⣿⣿⡟⢹⣿⣿⣿⣿⣿⣿⠏⢀⢀⠱⢷⣀⢀⢀⢀⣿⡗⢀⢀⢀⣿⡿⠿⠭⡁⡉⠉⠛⠁⢀⠘⣿⣿⡿⢀⠈⢀⢸⣿⣿⣿⡿⠋⢀⠉ ⣿⣿⣦⣿⠇⢀⣾⣿⣿⣿⣿⣿⠋⢀⢸⣿⣿⣿⣿⣿⣿⣆⢀⢀⢀⢀⠉⠛⠉⠁⢀⢀⢀⢀⢀⠘⢣⣀⢀⢀⡼⠋⢀⢀⢀⢀⣿⣿⡇⢀⢀⢀⢸⣿⠟⠉ ⢿⣿⣿⣿⣦⣿⣿⣿⣿⣿⠟⠁⢀⢀⢸⣿⣿⣿⣿⣿⣿⣿⡿⠶⠦⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⠈⠉⢀⢀⢀⢀⢀⢀⢀⣿⠟⢀⢀⢀⢀⢸⡏ ⣿⢻⣿⣿⡿⣱⣿⣿⣿⠋⢀⢀⢀⢀⠘⠛⠉⠘⣿⣿⣿⡿⢿⣦⣀⡀⢀⠦⣄⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣸⠏⢀⢀⢀⢀⢀⠘ ⣿⣿⣿⣿⣴⣿⣿⣿⠏⢀⢀⢀⢀⢀⢀⢀⢀⢀⠘⣿⣿⣇⢀⢻⣿⠁⢀⢀⠘⢦⡀⢀⢀⢀⢀⢀⢀⢀⢀⣀⢀⢀⢀⢀⢠⠏⢀⢀⢀⢀⢀⢀⣿⣆ ⣷⣾⣿⣿⣿⣿⣿⣟⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣿⣿⣿⣼⡄⢿⣷⢀⠐⣄⡀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣿⡏⢀⢀⢀⠈⢀⢀⢀⢀⢀⢀⢀⣿⣿⣷ ⣿⣿⣿⣿⣿⣿⣿⠓⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣿⣿⣿⣿⣷⡀⠻⣷⣄⢀⠉⠑⠒⠲⠒⠒⠁⢀⣤⡾⠋⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣾⣿⣿⣿⣧ ⣿⣿⣿⣿⣿⣿⣿⠇⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢿⣿⣿⣿⣿⣿⣦⠈⠙⠶⢦⣀⣀⣀⣀⣠⠴⠞⠉⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣾⣿⣿⣿⣿⣿⣧ ⣿⣻⣿⣛⣿⣿⣿⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢸⣿⣿⣿⣿⣿⡿⢷⡦⣄⣀⢀⠈⠁⢀⢀⣀⠤⠊⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣠⣾⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⡏⣿⣿⣿⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢸⣿⣿⣿⣿⣿⣿⣦⣈⠉⠁⠊⠉⠉⠁⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⡏ ⢻⣿⣿⣿⣿⣿⡿⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⠸⣿⣿⣿⣿⣿⣿⣿⣿⣷⣦⣄⡀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣠⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣼⣿⣿⣿⣾⣿⠃⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣶⡄⢀⢀⢀⢀⢀⢀⢀⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡏ ⠘⣿⣿⣿⣿⠏⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⢀⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣀⣀⣀⣠⣤⣤⡴⠶⠿⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷

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