Figure 6 shows how this would appear on the screen. There is a bit of schewing as well as variations in the shading. These problems will be addressed in the explaination of limitations of the system. The CCD must be read before the cap charge droops. This can be reduced with a flash converter.
Light also play an important role.
The lighting conditions must be identical for an accurate comparison to be made with a model item. Software problems can be illiminated by using faster data acquisition routines. The 64K segment limit requires repetitive writes to the file. If the 'huge' pointer is used, the program runs too slowly, resulting in inaccurate data. The applications are countless and once in place the question of how a processe could have been carried out without one becomes common place.