For the image processing system consisting of the image grabbing card and computer

a software is developed to grab and display images of the CCD camera system. In the software

the modulations are calculated

which are the indicators for evaluating the general image quality of the CCD camera system. This design takes full advantage of Matrox imaging library for secondary development. The software can display

save and calculate the modulations of output images by invoking functions of Matrox imaging library with VC ++ 6.0. To improve the software performance

the main algorithm is optimized. Lab tests show that the software can display and process the output images in real-time. The calculated modulations are accurate and the software operates stably. Using the function library of the image grabbing card to develop image displaying and processing software

development cycle can be shorten and the reliability of the software can be improved.