The invention discloses a
sand blasting precision detection method for a wearable watch bottom shell, and relates to the field of
sand blasting precision detection for bottom shells, and the method comprises the following steps: carrying out the judgment of a window
mutual information value, a pixel point gradient vector, a pixel convex state, a pixel concave state and a
sand blasting texture of a visual image, and obtaining a bottom shell sand blasting visual evaluation value; analyzing the visual evaluation value of the bottom shell sand blasting to obtain a visual evaluation set H of the bottom shell sand blasting, performing depth analysis on the bottom shell sand blasting according to the surface physical characteristics, the particle distribution characteristics, the mechanical state, the material performance parameters and the surface optical performance of the bottom shell sand blasting to obtain a deep residual
corrosion value of the bottom shell sand blasting, and analyzing the deep residual
corrosion value of the bottom shell sand blasting to obtain a deep residual
corrosion value of the bottom shell sand blasting. And a bottom shell sand blasting depth evaluation set W is obtained, union
processing is carried out on the set H and the set W, warehousing operation and
label display corresponding to all levels of comprehensive evaluation signals are obtained through analysis, sand blasting precision judgment can be carried out on the watch bottom shell from multiple dimensions, the sand blasting process can be adjusted in time, and the production cost of an enterprise is reduced.