Application of the wavelet transform for processing speckle patterns in the analyzing of surface roughness

Measurement of roughness parameter on the date in the engineering industry is in demand. Surface roughness is one of the basic geometric characteristics of the surface quality of parts and has an impact on performance indicators. Under the conditions of a machine or device, external influences, especially, are subjected to the surface of their parts. The magnitude of the roughness can be judged on the quality of processing details of its reliability and durability. To measure the roughness of parts isspolzuyutsya speckle pattern formed by the sample.