Abstract:

Quantitative description of fat distribution in snowflake beef marbling is the key to improving the accuracy
of automatic evaluation of beef marbling grade. According to the detection and analysis of high-grade snowflake beef
marbling based on fat amount, fat content, average fat area and fat area uniformity, it was proposed to quantitatively analyze
fat distribution through coarseness and fineness. Snowflake beef images were collected and coarseness and fineness was
calculated by obtaining the marbling binary image by imaging the segmentation and calibrating the size and location of each
piece of fat in the binary image. The test results showed that coarseness and fineness could reflect fat distribution. As for
fat content in a certain case, when beef has high fineness and low coarseness, its fat distribution is more uniformed. Both
indicators varied with the fat content of snowflake beef marbling.

Key words: beef, marbling, coarseness, fineness