Abstract
Fuji prescale pressure sensitive films (FPPSF) are generally used in biomechanical applications to measure the pressure distributions and the contact areas between two contact surfaces as in coloured stains. FPPSFs are usually calibrated based on the calibration methods using regression analysis to obtain a specific calibration curve. However, researchers in literature achieve different calibration curves based upon their tests and different processes. The purpose of this study is to examine the calibration stains (data) obtained experimentally using the FPPSF samples compressed between two smooth flat surfaces to indicate contact pressures. The gray-level co-occurrence matrix (GLCM) was used to evaluate the uniformity of the sample stains for quantitative evaluation of uniform distribution of the sample stains. Moreover, the generated calibration data is also compared and validated statistically with the related calibration curves presented in the available literature. As a result, the parameter of energy property of GLCM can be practicable to check the image uniformity of samples in order for performing the accuracy of a generated curve.
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