Adaptive window size multi-focus images fused based on Sum of Modified Laplacian

This paper presents a new method to improve image quality by using adaptive window size multi-focus image fusion based on Sum of Modified Laplacian (SML). The method employs the focus measurement to select the best in focus area of the input images. Then combine these areas to be the output image which all areas are in focus. The size of the window for the focus measurement is adjustable. The criterion to adjust the window size is the variance of gray level information of edged input images. Therefore, the proposed method will use suitable size of the window for each area in the input images. The result showed the improvement of this method, which gives the smoother boundary.