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计算机应用 2008
Method of wavelet domain denoising based on directional rectangle window
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Abstract:
According to the features of the wavelet transform, a new method of choosing the local neighborhood was proposed. For the three subbands of the same scale, we chose rectangle windows of different directions, and the size of the rectangle windows for different scales is also different. For the multidirectional images, Dual-Tree Complex Wavelet Transform(DTCWT) was employed instead of the traditional Discrete Wavelet Transform(DWT). The experimental results indicate that the method of choosing directional rectangle windows is simple and effective, and high PSNR and good visual quality can be obtained from this method.