Study on printing quality checking based on virtual instrumentation

A machine vision system based on LabVIEW(a virtual instrument platform)is developed with IMAQ Vision toolset to check the quality of color printing.The system can automatically inspect and recognize the problems brought in color printing by the strong image processing function of IMAQ Vision such as edge detection,image calibration,filtering,image extraction,threshold segmentation,mathematical morphology processing,pattern matching and so forth.It proved that the system is very precise and universal.