Color image processing techniques were developed to characterize the textural properties of expanded food products. Three major approaches were taken to extract image features from surface and cross‐section images of a test product. Scanning electronic microscopy (SEM) was employed to measure the cell size and density. Correlation and regression analyses were performed between the image features and SEM measurements. A number of image features were found highly descriptive of texture‐related geometric properties.
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Gao et al. (1996) studied this question.
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