Function opencv::intensity_transform::contrast_stretching

pub fn contrast_stretching(
    input: Mat, 
    output: &mut Mat, 
    r1: i32, 
    s1: i32, 
    r2: i32, 
    s2: i32
) -> Result<()>

Given an input bgr or grayscale image, apply linear contrast stretching on domain [0, 255] and return the resulting image.

Parameters

• input: input bgr or grayscale image.
• output: resulting image of contrast stretching.
• r1: x coordinate of first point (r1, s1) in the transformation function.
• s1: y coordinate of first point (r1, s1) in the transformation function.
• r2: x coordinate of second point (r2, s2) in the transformation function.
• s2: y coordinate of second point (r2, s2) in the transformation function.