Design And Implementation Of Thin Film Coating Defect Detection Software Based On Digital Image Processing

Shielded film coating defect detection for the shielding film coating Production Company is of great significance,shielding film coating is directly related to the quality of the product,the company’s interests and reputation.Early production process for the detection of coating defects mainly using artificial detection methods.Artificial detection means to invest a lot of manpower and resources,for the enterprise this is an important burden.The complete shielding film defect detection system consists of the host computer and the lower computer.The main function of the system is to collect the shielding film and communicate with the host computer,and store the picture in the shared folder.The main purpose of this design is the host computer software development,including the host computer to Microsoft Visual C++ as the system development environment.The main goal of the host computer software is to provide users with the user interface,the shielding film coating image detection,display the test results,the test results and other data stored in the database.Defect detection is divided into on-line detection and off-line detection in two ways,on-line detection of the host computer read the lower machine to collect the picture.Offline detection is to deal with the picture in the local folder.Picture detection using bin aviation,find connectivity domain algorithm,after processing can detect the defect location on the sample image.At the same time,the data relating to the defective part are stored in the database for defect type determination.The purpose of the simulation of the lower computer is to simulate the image acquisition process,it will be suspected of the picture in accordance with the Rules of detection type and store it in a shared folder,the host computer and analog lower computer through the LAN connection,in the lower computer to create a shared folder and to store the picture,the host computer read the directories of the picture and process the detection by mapping the network drive.PC software run well after the test.The system can accurately and quickly deal with the simulation of the lower computer to collect the picture to meet the requireddetection accuracy.The host computer software provides the interface of parameter setting,through which the different defect type parameters can be modified.This system has the application value.