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N.M. M. NamaziSpringer LondonY. Shimizu, Z. Zhang, R. Batres: ''The Wavelet Transform in Signal and Image Processing'', Frontiers in Computing Technologies for Manufacturing Applications, Springer-Verlag London Limited, pp.159-220 (2007)....
Image Processingwavelet transform and fast wavelet transformIn general, image compression reduces the number bits required to represent an image. The main significance of image compression is that the quality of the image is preserved. This in turn increases the storage space and thereby the volume ...
The wavelet transform appears to be an efficient tool for image compression.Many works propose an implementation of the pyramid algorithm with some improvement to reduce its treatment time or to increase its performances. However, the pyramid algorithm remains silicon area costly, essentially because of...
使用小波变换对图像进行处理,包括图像融合、图像降噪、图像压缩和图像隐藏(Using wavelet transform for image processing, including image fusion, image denoising, image compression, and image hiding) Topics matlab matlab-gui wavelet-transform Resources Readme Activity Stars 23 stars Watchers 1 watching...
Subband averaging kurtogram with dual-tree complex wavelet packet transform for rotating machinery fault diagnosis[J]. Mechanical Systems and Signal Processing,2020,142(C). DTCWT的近似移位不变性 DWT受到移位变化的影响,这意味着输入信号或图像的微小偏移将导致DWT系数中跨尺度的信号或图像能量分布发生显着...
Wavelet techniques have been proven to be indispensable for image processing. For that, the Wavelet Transform is used in this work as the compression technique. Cite for example in 1992 the FBI used wavelet compression to store and retrieve its 250 million fingerprint files requiring 250 terabytes...
Multiplierless design of biorthogonal dual-tree complex wavelet transform using lifting scheme D. Tran, "Multiplierless design of biorthogonal dual- tree complex wavelet transform using lifting scheme," in Proc. IEEE Int. Conf. Image Processing, ... Abbas,Tran,TD - 《IEEE Image Proc》 被引量:...
The dual-tree transform produces a consistent analysis of variance by scale for the original signal and its circularly shifted version. Directional Selectivity in Image Processing The standard implementation of the DWT in 2-D uses separable filtering of the columns and rows of the image. Use the ...
3.1 Discrete Wavelet Transform The wavelet transformation is a mathematical approach which can simultaneously represent an image in both the time domain and the frequency domain [40]. A wavelet transform allocates the signal decomposition in narrow frequency bands. The DWT is a fast and simple trans...