Ca- Cell Amplitude

Ca (reported in [p-µm] (perceived microns)) is defined as the average amplitude of all cells features identified within the texture of a material.

It quantifies the difference between the highest and lowest points, (Average Height of cells- Average Depth of valleys) providing a measure of the vertical dimension of the texture.
This parameter is used to understand the depth and relief of the surface texture, which directly influences visual and tactile perception.

A higher cell amplitude indicates a more pronounced texture, lower values will be measured on smoother materials.

Unit- Perceived Microns [pµm]