Resize_image filtering options

aaron404 · July 24, 2024, 12:46am

The image resizing function is hardcoded to use Lanczos3 filter. While this filter is great for resampling real pictures, it isn’t usable for pixel art images like game sprites which turn into a blurry mess. It would be pretty simple to add at least the nearest-neighbor filter as an option. I’m happy to submit a PR for this if there is support for the feature.

github.com

getzola/zola/blob/c273211c8bb8c43f8e7481ae3a2efbf6ce9fcdd8/components/imageproc/src/processor.rs#L50


      
          }
          
          let img = image::open(&self.input_path)?;
          let mut img = fix_orientation(&img, &self.input_path).unwrap_or(img);
          
          let img = match self.instr.crop_instruction {
              Some((x, y, w, h)) => img.crop(x, y, w, h),
              None => img,
          };
          let img = match self.instr.resize_instruction {
              Some((w, h)) => img.resize_exact(w, h, FilterType::Lanczos3),
              None => img,
          };
          
          let f = File::create(&self.output_path)?;
          let mut buffered_f = BufWriter::new(f);
          
          match self.format {
              Format::Png => {
                  img.write_to(&mut buffered_f, ImageFormat::Png)?;
              }

keats · July 24, 2024, 3:14pm

Yep you can send a PR

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Resize_image filtering options

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