anny operator detection based on wavelet transform

Abstract：Image edge detection plays a very important role in image processing, it can serve as a basis for modaldistinction, image division and image scene analysis.Traditional edge image detection is easy to do and its direction adaptation is good.However, the image edge is diverse.E.g.it has different directions, different robustness, etc, which limits its uses.In the paper, image deposition, enhance and restruction is analysed based on wavele transform, then image edge is detected based on traditional Canny operator.The experiment results show that the proposed method has a better ability in precise location and noise restraining, which adapts to the images with more edge characteristics.

Keyword：wavelet transform;Canny operator;edge dectection