Function row_running_sum

pub fn row_running_sum(
    image: &GrayImage,
    row: u32,
    buffer: &mut [u32],
    padding: u32,
)

Computes the running sum of one row of image, padded at the beginning and end. The padding is by continuity. Takes a reference to buffer so that this can be reused for all rows in an image.

Panics

• If buffer.len() < 2 * padding + image.width().
• If row >= image.height().
• If image.width() == 0.

Examples

use imageproc::integral_image::row_running_sum;

let image = gray_image!(
    1, 2, 3;
    4, 5, 6);

// Buffer has length two greater than image width, hence padding of 1
let mut buffer = [0; 5];
row_running_sum(&image, 0, &mut buffer, 1);

// The image is padded by continuity on either side
assert_eq!(buffer, [1, 2, 4, 7, 10]);