Color-luminance adjustment for image cloning based on mean-value coordinates

Image cloning could seamlessly copy and paste the interesting region from the source image into the target image to produce natural-looking and pleasing cloned result. This paper proposes an efficient color-luminance adjustment method to preserve the color of source image in object cloned region while insure the seamless transition between the source image and target image. We use an improved mean-value coordinates cloning to generate a mean-value membrane, and modulate the membrane according to automatic computed weighted parameter in different color channels. Furthermore, a constrained weighted parameter is utilized to make the cloned result match well with the target image on the luminance. The experimental results demonstrate that our method could obtain natural-looking and pleasing cloned result.