Figure 8, Illumination body A smooth front and back overlap image and first level difference overlap image <br>A, smooth front and back overlap image; B, smooth front and back level difference overlap image
Figure 8, lighting body A smooth front and rear overlap chart and first-level step difference overlap chart.<br>A, smoothing the front and back overlap chart;
Figure 8, the overlap map of illuminant a before and after smoothing and the first order difference overlap diagram<br>A. B is the first order difference overlapping map before and after smoothing