Research on Identification Method of Printing Automatic Registering Mark
LI Ke-tian · Packaging Engineering · 2007
In the automatic registering control system,the registering mark is detected firstly.The necessary adjustments are carried out through data transmission,calculation and some remote control de- vices.An image-identifiod method was studied.Through comparing the image of the sample with the stand- ard one,the angle deviation and position deviation was obtained.According to these deviations,the printing machine was rectified by the automatic registering control system.The identification and test of a registering mark shaped as*was analyzed.