31 lines
828 B
Rust
31 lines
828 B
Rust
mod common;
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use ccvl::*;
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fn draw(contour: &contour::Contour, img: &mut image::Image<image::SRGBA>) {
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let n = contour.vertices.len();
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for i in 0..n {
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let (x0, y0) = contour.vertices[i];
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let (x1, y1) = contour.vertices[(i + 1) % n];
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let colour = match contour.kind {
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contour::Kind::Outer => colours::GREEN,
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contour::Kind::Inner => colours::BLUE,
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};
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draw::line(x0, y0, x1, y1, img, colour);
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}
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}
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fn main() -> std::process::ExitCode {
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common::process_image(|mut img| {
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let greyscale = img.map(|p| image::Luminance::from(p));
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let thresholded = filter::threshold_auto(greyscale);
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let contours = contour::find(thresholded);
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for contour in contours {
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draw(&contour, &mut img);
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}
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img
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})
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}
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