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Satellite Image Contrast Enhancement Using Discrete Wavelet Transform and Singular Value Decomposition

Satellite Image Contrast Enhancement Using Discrete Wavelet Transform and Singular Value Decomposition,10.1109/LGRS.2009.2034873,IEEE Geoscience and R

Satellite Image Contrast Enhancement Using Discrete Wavelet Transform and Singular Value Decomposition   (Citations: 6)
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In this letter, a new satellite image contrast enhancement technique based on the discrete wavelet transform (DWT) and singular value decomposition has been proposed. The technique decomposes the input image into the four frequency subbands by using DWT and estimates the singular value matrix of the low-low subband image, and, then, it reconstructs the enhanced image by applying inverse DWT. The technique is compared with conventional image equalization techniques such as standard general histogram equalization and local histogram equalization, as well as state-of-the-art techniques such as brightness preserving dynamic histogram equalization and singular value equalization. The experimental results show the superiority of the proposed method over conventional and state-of-the-art techniques.
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    • ...In this paper illumination problem is addressed using SVD [8] with wavelets [7] integrated into the KPCA to extract Multiscale features towards secure Face Recognition system...
    • ...For fast and better face recognition from the face database, the training and testing images are enhanced by SVD method [8]...

    K. Punnam Chandaret al. Multi scale feature extraction and enhancement using SVD towards secur...

    • ...While state-of-the-art contrast enhancement techniques based on equalization, such as image equalization based on discrete wavelet transform and singular value decomposition (EDWTSVD) [6], brightness-preserving dynamic histogram equalization (BPDHE) [7], a general histogram modification framework [8], and weighted thresholded histogram equalization [9], have recently been proposed, they are still not enough to emphasize details because ...
    • ...To demonstrate the performance of the SDMSR_HITF algorithm, we compare the proposed algorithm with a contrast enhancement technique based on retinex, namely, MSRCR with white balance [4] and two state-of-the-art techniques based on equalization, namely, EDWTSVD [6] and BPDHE [7]...
    • ...Images (a) and (b) were kindly provided by Dr. H. Demirel and G. Anbarjafari for research purposes [6]...
    • ...Enhancement results of the Satellite image by using various contrast enhancement techniques based on equalization have been well demonstrated in another study [6]...
    • ...In terms of details and/or contrast enhancement, it can be easily noticed that SDMSR_HITF outperforms all the results given in [6]...

    Jae Ho Janget al. Enhancement of Optical Remote Sensing Images by Subband-Decomposed Mul...

    • ...Demirel et al. [11, 12] employed wavelet transform to enhance contrast satellite image...

    Chang-Jiang Zhanget al. A novel nonlinear algorithm for typhoon cloud image enhancement

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