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- W2374080208 abstract "Significant luminance and chrominance discrepancies between the different camera views can often be observed in multiview video sequences.In this paper,a luminance and chrominance correction algorithm based on partially overlapped local histogram matching is proposed.In the histogram matching method, a mapping function is established by matching the histogram of the original image to that of the reference image.Then the mapping function is applied to the original image to obtain the corrected image.There are two branches of histogram matching according to the mapping function used: global histogram matching and adaptive local histogram matching.Global histogram matching uses the same mapping function for the whole image,so its performance is relatively low.Adaptive local histogram matching can calibrate the luminance and chrominance effectively by using the local histogram for each pixel,but the computational complexity is very high.In the proposed partially overlapped local histogram matching method,the same mapping function is applied to a block of pixels.A conditional block reduction filter is utilized on the boundaries of all the adjacent blocks to eliminate the blocking effect.The proposed algorithm can be used as a preprocessing tool in the multiview video system.Experiment results show that it can improve the performance of the multiview video encoder." @default.
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- W2374080208 date "2007-01-01" @default.
- W2374080208 modified "2023-09-25" @default.
- W2374080208 title "Luminance and Chrominance Correction for Multi-view Video Using Overlapped Local Histogram Matching" @default.
- W2374080208 hasPublicationYear "2007" @default.
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