Since their method was based solely on the grey level histogram, it was sensitive to the uniformity and degree of illumination present. In addition, no information regarding the spatial distribution of periodic features could be obtained from the grey level histogram. Hoy and Yu [45] adopted the...
where i and j are the horizontal and vertical spatial dimensions of CM, G is the maximum gray-level value in the image and P is the normalized GLCM. Thus, the sum of the P elements is equal to one. 4.4. Texture Features Extraction from GLCM The four GLCM contain information about the...