Print Image Detection Based on DM642
|School||Xi'an University of Science and Technology|
|Course||Control Theory and Control Engineering|
|Keywords||TMS320DM642 Digital Image Processing Edge Detection Wavelet Transform|
The printing industry in recent years has gradually become an important industry of the national economy , while in the printing process will inevitably produce print quality problems , and therefore must be detected in order to ensure the printing quality . In order to adapt to the rapid growth of the printing industry production lines , online machine vision - based detection technology is being applied to the print production , compared with traditional manual testing methods , its efficiency and accuracy has incomparable advantages , will become the prints detect an inevitable trend in the future of the industry . Learning home and abroad, the quality of prints online detection method based on the TI TMS320DM642 video processing chip as the core element of the system , select a suitable light source , camera , monitor , and other auxiliary equipment, constituting the printing production simulation platform . Prints common image defects using digital image processing techniques to extract edge features of print image edge detection , and then will be detected prints edge of the edges of the image and the template differential comparator of print shape defects detection . Comparative analysis of the algorithm of the space domain classic edge detection and wavelet transform edge detection algorithm , to select wavelet transform as edge detection algorithm . The final design of the detection process of the system , including templates, template matching, detection algorithms and results output RF5 framework of parallel multi-task , the completion of the system software design . Topic design prints image detection system can be realized on the prints of the image defect detection, and has high reliability, high integration , low power consumption advantages .