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Tone mapping (TM) algorithms reproduce the high dynamic range (HDR) images on low dynamic range (LDR) display devices such as monitors or printers. In this paper, we propose a local TM algorithm, in which the HDR input is segmented using the K-means algorithm and a display gamma parameter is set automatically for each segmented region. The proposed TM algorithm computes the luminance of an input that...
Tone mapping (TM) algorithms reproduce the high dynamic range (HDR) images on low dynamic range (LDR) display devices such as monitors or printers. In this paper, we propose a local TM algorithm, in which the input HDR is segmented using K-means algorithm and a display gamma parameter is set automatically for each segmented region. The proposed TM algorithm computes the luminance of an input that...
We propose a gradient estimation algorithm in a color filter array (CFA) image and apply it to demosaicing. Using directly computed ones, the proposed method estimates gradients, which cannot be computed directly from the CFA image. The proposed gradient estimation method is simple, improving the performance of existing demosaicing methods.
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