Figure 3.
Example of GLCM. (a) The matrix of input image with 5 grayscales. Different distances and orientations such as (b) d=1, θ=0°, (c) d=2, θ=0°, (d) d=1, θ=135°, and (e) d=2, θ=135°. NGLCM calculation: (b′)-(b), (c′)-(c), (d′)-(d), (e′)-(e).
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