A Weighted Histogram-Based Tone Mapping Algorithm for CT Images

  title={A Weighted Histogram-Based Tone Mapping Algorithm for CT Images},
  author={D. V{\"o}lgyes and A. C. Martinsen and A. Stray-Pedersen and D. Waaler and Marius Pedersen},
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… Expand
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