Halftone Glyph, a tool inspired by the halftone printing technique, generates images in which pixels are substituted by characters. The brightness of the pixel is encoded with the size of the character.
The tool can be used trough the command line program hatogl that is available for Windows, Mac, and Linux.
Download from here the correct version of the tool for your Operating System. Extract the archive and move to a desirable location. Then, open a terminal and use it.
For instance the following command uses the characters @,?,=,# to draw the image michael.png:
hatogl data/michael.png --glyph="@?=#" --tile=15 --font=DejaVuSerif --out=michael_gliph.png--glyph, characters to be used--tile, maximum size of the characters--font, name or file of the font--out, output path of the image
All the above parameters are optional, by default HalftoneGliph uses a system monospace font and the @ character.
There is also the possibility to disable the randomness of the characters passing the --no-random parameter.
HalftoneGliph can be used also as a Rust library.
After including the library as dependency, use the function image_to_unicode to transform an image.
HalftoneGlyph is implemented in Rust and uses image to load and save images and font-kit to load fonts and render characters.
MIT License