Open xmakro opened 3 years ago
A 2x2 grayscale image:
[1, 0, 0, 2]
Is incorrectly upscaled to the following 4x4 image:
[1, 0, 0, 0, 0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2]
This can be reproduced with:
fn main() { let mut resizer = resize::new(2, 2, 4, 4, resize::Pixel::Gray8, resize::Type::Point).unwrap(); let src = vec![1u8, 0u8, 0u8, 2u8]; let mut dst = vec![0u8; 4 * 4]; resizer.resize(&src, &mut dst).unwrap(); println!("{:?}", dst); // prints: [1, 0, 0, 0, 0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2] }
I only observe this behavior for the edges of the image, the center part of the image is upscaled correctly.
I observed that on a 3x3 image, the center is also scaled incorrectly. But the distortion increases at the edge.
A 2x2 grayscale image:
Is incorrectly upscaled to the following 4x4 image:
This can be reproduced with:
I only observe this behavior for the edges of the image, the center part of the image is upscaled correctly.