Image mosaic has been researched for several years

but still it is hard to realize mosaic without ghosting and exposure difference.In this paper

for resolving these two problems

a new image mosaic method based on graph cut is presented.This method integrates two techniques:first graph cut

it is used to calculate a robust graph cut seam-line for deghosting by initializing the weighted directed graph with gradient direction histogram of each pixel;second Poisson image fusion

to further eliminate the exposure difference by an overlap transition Poisson image fusion procedure.Experimental results demonstrate the efficiency of our proposed method.