Here at http://mofanpeng.blogspot.co.uk/ you will find the blog for our year project blog titled " Image Processing", By Qing Shen and Mofan Peng, supervised by Dr Ham Van Zalinge.
Image processing is aimed at defining the RGB percentage of an image and could accomplished by using a Photo Diode Array(PDA), an Arduino board(ADC) and Matlab.
To begin with, the PDA was soldered and then connected to the ADC referring to the datasheet. Next, RGB light intensity were obtained by passing through the red, green, blue and yellow filters with the PDA. After that, digital voltage of RGB could be obtained with ADC and transferred into bar charts with Matlab. By analyzing the charts, RGB voltage could then be determined. Finally, the yellow could be expressed with RGB percentage thereby an image could be processed the same way.