In digital postpress production,difficulties in registration are often caused by medium transport errors,requiring precise positioning of prints.Currently,the common positioning method involves adding registration marks in the blank areas of prints,which are then utilized for registration.However,this method cannot be used when the image occupies the entire area of the prints.Therefore,a high-precision intelligent image registration system was designed in this study,which was implemented in postpress process.While real-time and efficient of image acquisition and printing were ensured,pre-designed templates were utilized to find the region with the highest matching degree in real-time captured images.It could make the prints to be precisely registrated without the registration marks.The experimental results obtained in printing production showed that this method fulfills the requirements of practical industrial production in terms of accuracy and efficiency,thereby exhibiting high versatility and practical value in actual production applications.
Digital printingDigital postpress enhancementImage registrationMarkerless detection technology
NETL
NSTL
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