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Apply sharp filters before upsizing #1

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Apply sharp filters before upsizing #1

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40 changes: 30 additions & 10 deletions src/resize.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -62,15 +62,35 @@ pub fn magic_resize(

let size = (image.width(), image.height());

let out = Kernel2D::new::<MagicKernel>(size, new_size).apply(image);
if version == Version::MagicKernel {
return out;
}
let out = Kernel2D::new::<Sharp2013>(new_size, new_size).apply(&out);
if version == Version::MagicKernelSharp2013 {
return out;
if new_size.0 >= size.0 {
match version {
Version::MagicKernel => {
Kernel2D::new::<MagicKernel>(size, new_size).apply(image)
}
Version::MagicKernelSharp2013 => {
let img = Kernel2D::new::<Sharp2013>(size, size).apply(image);
Kernel2D::new::<MagicKernel>(size, new_size).apply(&img)
}
Version::MagicKernelSharp2021 => {
let img = Kernel2D::new::<Sharp2013>(size, size).apply(image);
let img = Kernel2D::new::<Sharp2021>(size, size).apply(&img);
Kernel2D::new::<MagicKernel>(size, new_size).apply(&img)
}
}
} else {
match version {
Version::MagicKernel => {
Kernel2D::new::<MagicKernel>(size, new_size).apply(image)
}
Version::MagicKernelSharp2013 => {
let img = Kernel2D::new::<MagicKernel>(size, new_size).apply(image);
Kernel2D::new::<Sharp2013>(new_size, new_size).apply(&img)
}
Version::MagicKernelSharp2021 => {
let img = Kernel2D::new::<MagicKernel>(size, new_size).apply(image);
let img = Kernel2D::new::<Sharp2013>(new_size, new_size).apply(&img);
Kernel2D::new::<Sharp2021>(new_size, new_size).apply(&img)
}
}
}

// Sharp 2021 version
Kernel2D::new::<Sharp2021>(new_size, new_size).apply(&out)
}