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RSS FeedsAlgorithms, Vol. 11, Pages 111: A Weighted Histogram-Based Tone Mapping Algorithm for CT Images (Algorithms)


15 august 2018 10:01:43

Algorithms, Vol. 11, Pages 111: A Weighted Histogram-Based Tone Mapping Algorithm for CT Images (Algorithms)

Computed Tomography (CT) images have a high dynamic range, which makes visualization challenging. Histogram equalization methods either use spatially invariant weights or limited kernel size due to the complexity of pairwise contribution calculation. We present a weighted histogram equalization-based tone mapping algorithm which utilizes Fast Fourier Transform for distance-dependent contribution calculation and distance-based weights. The weights follow power-law without distance-based cut-off. The resulting images have good local contrast without noticeable artefacts. The results are compared to eight popular tone mapping operators. Digg Facebook Google StumbleUpon Twitter
42 viewsCategory: Informatics
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