Tsai classic to shadow edge retention
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A comparative study on shadow compensation of color aerial images in invariant color models 2006 Tsai classical shadow removal methods Color space transformation (HSI); Shadow early segmentation; Shape (edge) reserved; Shading compensation, to complete the final shadow segmentation. Pro-test, write yourself a sum, and proven, I hope you like it. Follow-up method gives an improved version of Chung Tsai method is classic!