Gray-Level Image Transformation of Paved Road Cracks with Metaphorical and Computational Analysis

Figure 5

Logarithmic transformation with different variations. (a) True color original image. (b) Converted to RGB image. (c) 0.1 constant value output image. (d) 0.2 constant value output image. (e) 0.3 constant value output image. (f) 0.4 constant value output image. (g) 0.5 constant value output image. (h) 0.6 constant value output image. (i) 0.7 constant value output image.

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