实现用SDRAM运行nios，同时用SRAM保存摄像头数据，中介真值程度度量，基于中介真值程度度量的图像分割实现了图像的灰度化并进一步用于视频监视控。- Implemented with SDRAM run nios, while saving camera data SRAM, The true extent of the value of the intermediary measure, measure the true exte