Computer Science ›› 2016, Vol. 43 ›› Issue (11): 300-303.doi: 10.11896/j.issn.1002-137X.2016.11.058

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Medical CT Image Enhancement Algorithm Based on Laplacian Pyramid and Wavelet Transform

LV Li-zhi and QIANG Yan   

  • Online:2018-12-01 Published:2018-12-01

Abstract: The enhancement of medical images can improve the utilization of information. The traditional image enhancement method applied in medical image has many problems,such as the loss of image details,the weakening of the target edge information and the decrease of the image contrast.To solve above-mentioned problems,a new image enhancement algorithm based on wavelet transform and Laplacian Pyramid decomposition was proposed in this paper.First,the original medical image is decomposed by wavelet transform.Then,the high frequency information of medical image is decomposed by Laplacian Pyramid.Finally,the results of wavelet transform and Laplacian decomposition of Pyramid is used to reconstruct the image.Experimental results show that the proposed method is better than the traditional image enhancement algorithm,which can better enhance medical images and resist noise.

Key words: Wavelet transform,Laplacian pyramid decomposition,Image reconstruction,Image enhancement,Medical image

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