Image zooming using C&E model and its performance evaluation

Based on the good performances of nonlinear diffusion in preserving important image features, the Curvature-driven with Edge-stopping(C&E model) is proposed and applied into image zooming. The C&E model can protect little curvature and emphasize big gradient; at same time, it has two effects of connecting broken level sets and strengthening edges. Its performance was further evaluated by the gray offset. For image zooming, the C&E model exhibits better performance.