Different focus points images fusion based on wavelet decomposition

A new technique is developed for the data fusion of two images. Two spatially registered images with differing focus points are fused by deciding clear objects. At first, an impulse function is defined to describe the image quality of an object. Then the clear region is decided by analyze the wavelet decomposition components of two primary images and two blurred images. The results of the comparison show this method performing better in preserving edge information for the test images than that of other image fusion methods.