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CHAPTER 2 FUNCTIONS & OPERATION
2. Image Processing
A block diagram of the image
processing is shown below.
CIS unit (back)
CIS unit (front)
Driver
Driver
Sensor
Sensor
Offset
Gain adjustment
A/D conversion: 16bit
Offset
Gain adjustment
A/D conversion: 16bit
Control PCB
Scanner
controller
Shading correction
One-dimensional
gamma correction
Reordering
Resolution conversion
Three-dimensional
gamma correction
JPEG compression
Computer
Driver
JPEG decompression
Resolution conversion
Deskew
Size detection
Skip blanks
etc.
Figure 2-402
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CANON ELECTRONICS INC. 2011 CANON DR-M140 FIRST EDITION
2-15