Abstract:

This paper focuses on the use of matlab serpentine path with dynamic threshold based on error diffusion dithering algorithm and its improved peak signal-to-noise ratio.The peak signal-to-noise ratio is used as the major indicator to evaluate the image.A dynamic threshold is better in signal-to-noise ratio than a fixed threshold,and it can be inferred that an appropriate dynamic threshold selection method can obtain optimal dynamic threshold.Experiment shows that our algorithm evaluates the image noise and blurring better,and in some cases can optimize the image.

Key words: error diffusion;Floyd-steinberg dithering;color space