伪彩色增强,对灰度图像Fig5.bmp中不同灰度值的区域赋予不同的颜色，使生成的伪彩色图像尽可能接近现实状况。-Pseudo-color enhanced gray-scale image of gray value Fig5.bmp different regions to give a different color, so that the resulting pseudo-color image as close to reality.