Extraction of plant from complex background in colorful pictures

The paper proposes a method for automatically identifying plants by computer based on the analysis that the plants and culture media have different RGB color coordinates and HSI color coordinates scales. The method can identify the plant from the complex culture media background quickly and correctly, and it provides basis for subsequent reconstruction of 3-dimensional structures of plant. The method is designed for processing laboratory soybean images. Experiment suggests that it can quickly identify the characteristics of the soybean and meet the requirements of providing real-time signals for controlling the follow-up variables, so it lays a foundation for further research.