images captured under non-uniform lighting environment often suffer saturation and underexposure. We present a luminance rendition method based on visual adaption to make illumination compensation. A new pixel-by-pixe...
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A new metric for image quality assessment in terms of image sharpness is proposed in this paper. To improve the method efficiency, a criterion for edge sharpness is employed and only the sharpest edge is selected for ...
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Traditional total variation model often leads to an undesirable staircase effect. In this paper, a new image restoration model based on adaptive total variation is proposed to solve the problem. It couples adaptive to...
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Otsu's method has a disadvantage of time-consuming for image segmentation. In this paper, a simple but fast multi-level thresholding approach is proposed by means of extending the Otsu's method. We advocate th...
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To overcome the drawbacks of the Laplacian model when there are many noise points in the image, a new Laplacian method of extracting image edge based on the secondary-sampling wavelet transform proposed in this paper....
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A security of an image encryption scheme based on improved chaotic cat maps was analyzed. In these analyses, it has revealed some rules of key information leaking in certain instances, and has pointed out that the alg...
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We propose a novel method for real-time mouth tracking and 3D reconstruction. This method comprises two successive processing stages. In the first stage, an AdaBoost learning algorithm and a Kalman filter are used to ...
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By analyzing the relationship between the fore-scaling and post-scaling of the images' DC coefficients, this paper proposes a robust image watermarking arithmetic with scaling compatible in DCT domain. Hung togeth...
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An entropy powered image fusion algorithm using multi scale top-hat transform is proposed in this paper. At the beginning, multi scale white and black top-hat transforms are used to extract bright and black image regi...
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The Recovery of a motion-blurred image is an important ill-posed inverse problem. The goal of the present work is to provide a probabilistic method for the detection of motion parameters based on the geometrical chara...
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