optional?

[zvezdochiot]

Hi @pannacotta98 .

Can add optional separation of the image into low and high frequencies:

$$I_blur = blur(I, radius) I_high = I - I_blur + 127$$

scale these components individually, then merge them together:

$$I_blur_x = scale(I_blur, x) I_high_x = scale(I_high, x) I_x = I_blur_x + I_high_x - 127$$

?

[zvezdochiot]

Example:

Source:

Gimp rescale (cubic) {x4, crop center}:

This plugin {x4, crop center}:

Separate:

Low (GaussBlur) {2}:

High:

This plugin {x4, crop center}:
Low:

High:

Join:

Compare:

Gimp separate {low, high} rescale (cubic) {x4, crop center}: