Color Image Enhancement by an Integral Mask-filtering Approach Employing Nonlinear Transfer Function
Ching-Chung Yang · Optics and Photonics Journal · 2013
We demonstrate a brand-new method to sharpen a color image by using an integral mask-filtering technique. The derivatives between the target pixel and its neighbors are transferred by the cubic root function instead of the traditional linear one. The obtained final image has clearer fine characteristics along with much less overshooting.