Glue overflow detection system and method

A glue overflow detection system, comprising:

• a camera module, configured to capture an image, wherein the image comprises a blue chromaticity image and a red chromaticity image, the blue chromaticity image comprises a plurality of blue pixel values, and the red chromaticity image comprises a plurality of red pixel values;
• and
• a processor, having a chromatic-aberration difference program, a block feature program, an inter-block difference program, and a determination program, wherein
• the processor executes the chromatic-aberration difference program to obtain a chromatic-aberration difference image according to the blue chromaticity image and the red chromaticity image, and the chromatic-aberration difference image comprises a plurality of chromatic-aberration difference pixel values;
• the processor executes the block feature program to obtain a block feature image according to the chromatic-aberration difference image, wherein the block feature image comprises a plurality of feature blocks, each of the feature blocks corresponds to a plurality of adjacent chromatic-aberration difference pixel values and has a block feature value, and the block feature value of the each feature block is a representative value of the chromatic-aberration difference pixel values corresponding to the feature block;
• the processor executes the inter-block difference program to obtain a longitudinal inter-block difference image and a transverse inter-block difference image according to the block feature image, wherein the longitudinal inter-block difference image comprises a plurality of longitudinal block difference blocks, the transverse inter-block difference image comprises a plurality of transverse block difference blocks, the longitudinal inter-block difference image is obtained by executing a longitudinal difference value program on the feature block of the block feature image, so that each of the longitudinal block difference blocks has a longitudinal difference value, and the transverse inter-block difference image is obtained by performing a transverse difference value program on the feature block of the block feature image, so that each of the transverse block difference blocks has a transverse difference value;
• and
• the processor executes the determination program, and determines whether a glue overflow image exists in the image according to the plurality of longitudinal difference values, the plurality of transverse difference values, and a threshold.