Image Warping includes the forward and backward methods respectively according to the mapping directions. However

out-mapping and holes often exist in the forward approaches

while backward ones cost much computing resources. A novel bidirectional zooming image warping method is proposed in this paper. Instead of the traditional unidirectional mapping

a backward mapping and subsequently a forward mapping are performed to achieve the warping. The new method gives a good solution to current problems by only adjusting the direction of mapping and the order of drawing

without any extra preprocessing and limitation of scene. The promising results can be obtained from both theoretical and experimental studies.