激光光斑图像伪彩色处理方法研究

Method for pseudo-color processing of laser spot images

激光光斑灰度图像分辨率较低、可视化效果差,为了提高激光光斑图像的显示分辨率,根据人眼对彩色图像非常敏感的特性,利用RGB三基色机理,采用映射函数将黑白图像256个灰度级转化为按可见光谱中彩色光的波长来表示的伪彩色图像,从而实现了激光光斑灰度图像的伪彩色处理。通过激光光斑灰色图像和伪彩色图像的比较可知,伪彩色光斑图像内部细节清晰、分辨率较高,视觉效果也比较自然,更能够全面生动地体现激光光斑图像所表示的相关信息。

Since resolution of the laser spot gray images is low and their visual effect is poor,in order to improve the dis play resolution of laser spot images,according to RGB tricolor mechanism and the characteristics of human eye sensitivity to color images,the mapping function is adopted to convert 256 grey levels of black and white picture to the pseudo color image ex pressed in color light wavelength in the visible spectrum,so as to realize the pseudo color processing of laser spot gray images. In comparison with laser spot gray image,the pseudo color spot image possesses clearer internal details,higher resolution,more natural visual effect,and more expressible capability to full and vividly reflect the related information of laser spot image.