Image Processing: Beyond the Limitation of Human Visual Perception

By Maria Petrou. International Conference on Digital Signal Processing, 2007

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Color-to-Grayscale: Does the Method Matter in Image Recognition? (2012, methodology): “…an increment in Lightness should more closely correspond to human perception, which is achieved via a nonlinear transformation of the RGB color space [10], where Y ~ 0 : 2126 R z 0 : 7152 G z 0 : 0722 B , and We have normalized Lightness to range from 0 to 1, instead of the usual range of 0 to 100.”
OpenComet: An automated tool for comet assay image analysis (2014, methodology): “To measure this property, we use the convexity ratio, also called solidity, which is the ratio of a region 0 s area and the area of its convex hull [28].”