The general rice seed and sticky rice seed are quite
different on red, green and blue color histograms respectively.
Compared with the rice seeds, the sticky rice seeds have lower
range and the percentage of ROB color are lower. Therefore it
is suggested to draw a 24-bit color histogram to distinguish the
rice seed and the sticky rice seed. It is clear that the rice ones
are white mostly. So in the red, green and blue histogram
distribution of the rice seed is a lot more than that of the sticky
rice ones. It is tested that it can distinguish the seeds as shown
in Figure 7 and Figure 8.