Gray level, texture analysis

Texture is defined as the pattern of relationships between the gray levels of the defined image. The objective of texture morphology analysis is develop an analytical method whereby the image can be regenerated. 

In order to do this the points of the image have to be incorporated into the analysis in the form of invariant descriptors. The interpretation of the textural morphology features depends upon the physics of the situation (for example, the gray level may be related to altitude or in another case to the chemical analysis from point to point. The interpretation also depends upon the mathematical relationships between the various morphological descriptors used. There are three major types of morphological texture descriptors. These are statistical terms, symmetry operations, and Invariant texture morphology descriptors (ITMD s). 

Texture analysis is illustrated in Figure 11 which shows the gray level distribution for a polished and etched sample of tungsten carbide material. From this distribution one can obtain the mean and standard deviation of the texture. In addition, the n value indicates the sharpness of the image. 

Mean and standard deviation of gray level of image, texture symmetry, color analysis and mixture analysis. 

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