Development of test system for rice shape property parameters

In order to test the quality parameters of high-quality rice, this paper presented a method for testing the rice shape parameters based on embedded system. The equipment used for capturing the image of rice was designed. The hardware platform of the system was S3C2410 with ARM core, and its software development platform was Linux system. A USB digital camera was used, and the technology of image processing and pattern recognition was applied. The threshold segmenting image was completed by using OTSU method. The edge detection method and the maximum distance method were employed to obtain the shape parameters of rice. The testing error was less than 1%. This system lays foundation for the field measurements of national standard rice parameters.