ALLIED Vision Technologies Pike F-1600 - Manual (Page 157)

Description of the data path
PIKE Technical Manual V5.1.2
157
• On the left you see the image after shading correction.
• The surface plot on the right clearly shows nearly no more gradient of the
brightness (0: brightest  255: darkest pixels). The remaining gradient is
related to the fact that the source image is lower than 50% on the right
hand side.
• The histogram shows a peak with very few different gray values.
Figure 79: Example of shaded image
surface plot
histogram
255.0
0.0
48
0.0
p
ix
els
640.
0 pix
els
256 0
Count: 307200 Min: 139
Mean: 157.039 Max: 162
StdDev: 2.629 Mode: 158 (84449)