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Flowgraph representation of discrete wavelet transforms (DWTs) is presented which can be considered as a new alternative definition of wavelets. It is shown that this representation is useful for developing efficient algorithms and VLSI architectures. As an examples two DWT architectures are proposed with the efficiency (counted as the measure of the average utilization of PEs) of approximately 100%...
This paper proposes two image enhancement algorithms that are based on utilizing histogram data gathered from wavelet transform domain coefficients. Computer simulations demonstrate that combining the spatial method of histogram equalization with the wavelet transform domain coefficient histograms achieves a much more balanced enhancement, which outperforms classical histogram equalization algorithms.
Image fusion is the process of combining multiple images into a single image which retains the most pertinent information from each original image source. More recently, multi-scale image fusion approaches have emerged as a means of providing a more meaningful fusion which better reflects the human visual system. In this paper, multi-scale decomposition techniques and image fusion algorithms are adapted...
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