Canon imageFORMULA DR-M160 Service Manual page 36

CHAPTER 2 FUNCTIONS & OPERATION
Analog signals proportionate to the
density of each picture element are output
as 4 parallel lines from the image sensor on
the CIS PCB to the analog processor. The
analog processor
adjustment, gain adjustment, and A/D
conversion. Analog signals are converted
into 16 bit digital signals in the analog
processor.
This image data is sent to the scanner
controller on the control PCB where shading
correction and one-dimensional gamma
correction are performed, and the data is
simultaneously converted into 8-bit data.
After this, data
conversion, three-dimensional
correction, and JPEG compression are
performed, and the data is output to the
computer via the USB interface.
Inside the computer, the various image
processing is executed according to the
user settings by the driver for this machine.
Whether to perform processing inside the
machine or on
depending on the settings, even for the
same processing, in consideration of the
overall efficiency.
2-16
carries out offset
reordering, resolution
gamma
the computer varies
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