Area Discrimination; Brightness/Density Conversion - Konica Minolta bizhub 500 Service Manual

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Theory of Operation Ver1.0 Feb.2006

Area discrimination

To make a copy of the original under the correct condition (to make a correct filter processing), check the read

section to see if it is a character or a dot picture, and use the results at the image processing unit at the later

The signal obtained after the shading correction is a signal corresponding to the light reflected from the original,

and this is generally called a brightness signal. In this brightness/density conversion section, the brightness sig-

nal is converted in density as shown in the graph below.

22. IMAGE PROCESSING

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