Picture compression method in AOI (Automatic Optic Inspection) detection system and display panel defect detection system
A technology for displaying panel defects and compression methods, applied in image analysis, image communication, image data processing, etc., can solve problems such as resource consumption, image lossy compression, image data loss, etc., to reduce information volume, improve compression rate, The effect of reducing compression time
Active Publication Date: 2017-11-07
WUHAN JINGCE ELECTRONICS GRP CO LTD
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The invention relates to a picture compression method in an AOI (Automatic Optic Inspection) detection system. The picture compression method comprises the following steps: step 1, arranging a display panel defect detection image group, determining a pure white detection image in the display panel defect detection image group as a first detection image, and sorting other detection images except the pure white detection image in the display panel defect detection image group in any order; step 2, performing a difference value subtraction operation on pixel values of other images except the pure white detection image and a pure black detection image in the display panel defect detection image group and a pixel value of the first detection image orderly, and obtaining a plurality of corresponding foreground images; step 3, removing a negative value of the pixel value of each foreground image and obtaining each corrected foreground image; and step 4, respectively performing image lossless compression on each corrected foreground image, and directly performing image lossless compression on the pure black detection image and the pure white detection image. The picture compression method in the AOI detection system provided by the invention can guarantee the compression ratio and shorten the compression time.
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