TY - JFULL AU - A. K. Bhandari and A. Kumar and P. K. Padhy PY - 2011/8/ TI - Enhancement of Low Contrast Satellite Images using Discrete Cosine Transform and Singular Value Decomposition T2 - International Journal of Computer and Information Engineering SP - 706 EP - 713 VL - 5 SN - 1307-6892 UR - https://publications.waset.org/pdf/4004 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 55, 2011 N2 - In this paper, a novel contrast enhancement technique for contrast enhancement of a low-contrast satellite image has been proposed based on the singular value decomposition (SVD) and discrete cosine transform (DCT). The singular value matrix represents the intensity information of the given image and any change on the singular values change the intensity of the input image. The proposed technique converts the image into the SVD-DCT domain and after normalizing the singular value matrix; the enhanced image is reconstructed by using inverse DCT. The visual and quantitative results suggest that the proposed SVD-DCT method clearly shows the increased efficiency and flexibility of the proposed method over the exiting methods such as Linear Contrast Stretching technique, GHE technique, DWT-SVD technique, DWT technique, Decorrelation Stretching technique, Gamma Correction method based techniques. ER -