A Deeper Dive into the Illumination “W”
You probably recall the illumination “W” that is a foundational concept for machine vision illumination design (see Figure 1). You also probably recall that the illumination “W” is based on a flat, perpendicular, specular or mirror-like surface. Further examination of the “W” reveals characteristics that can further help with your design of lighting in implementing bright field or dark field lighting.
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