The Design of Color Measurement System based on OPB780 Color Sensor

due to the fast recognize and high accuracy of OPB780 color sensor,we designed a non-contact color detected circuit.With measuring RGB values frequency of the card set by using the measured frequency matched with RGB color space,we can built the comparison chart between them.From the chart,we can seen that there has a good mapping relationship between the frequency values collected and the standard RGB color space value,the design of color measurement system achieve good results.