Insa converts raster bitmap images to text / ansi escapes. Why? Shape detection and matching appropriate glyph, rather than just luminosity => char. Let terminal based apps show some basic graphics, too - mail, chat, file browser...
This is a cargo lib insa and also a command line tool insa and insa-rasterize
The original of 400px width is converted to 50 chars. One character takes 8px width and 16px height.
sh
insa docs/insa.jpeg
sh
insa --style plain docs/insa.jpeg
Notice how the blocks (default) style brings perhaps double the precision and fidelity with the same amount of characters as it detects sub-block shapes.
You can supply your own brushes to make ascii art, too, with the lib. For example:
sh
insa --style simple-on-dark docs/logo.png
sh
cargo install insa
insa --help
insa-rasterize --help
sh
cargo add insa
let img = "docs/insa.jpeg";
let img = image::open(img).expect("opening the image");
let mut insa = insa::Insa::blocks();
for ((col, row), symbol) in insa.convert(&img) {
if col == 0 && row != 0 {
println!("\x1b[0m");
}
print!("{symbol}");
}
println!("\x1b[0m");
The fontdue feature enables rasterization.