Mitsubishi Electric KD Series User Manual page 71

5-2 Setting ⑨ White correction
※ When conducting Dark/White correction, input external sync. signal continuously, or conduct with internal sync. mode.
5-2-9 White Correction
【 Input 】
Command Parameter （ DATA ） （ DATA ） CR
WC ** Upper
【 Output 】
Result Parameter （ DATA ） （ DATA ） CR
** Upper
* A Value of White target are defined by 2 byte data . Commands except for
setting a Value of White target have no data.
[initial] White Correction function
[setting]
1) automated White correction data generation
2) white Correction
Image data when scanning white reference Object Image data when scanning white reference Object
DVp0(n): output of n-th Pixel
Pixel
data output after White correction data output after White correction
White target
pixel
Example
Switch White correction mode to turn on :
WC 01 <CR>
⇒
TM-XG537C
Lower CR
Lower CR
Off
00 01 <CR>
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【 White Correction 】
[Function]
This function is to correct variation of output from sensor
IC pixel by pixel caused by variation of illumination strength
and Pixel sensitivities . It makes all output of pixels uniform.
Refer chapter 2-3. , "how to use CIS" .
【 Remarks 】
1) To prepare new White correction data , start to send
command after turning on dark correction function
under scanning white reference object having uniform
reflection ratio .
2) Scanning Image has some unusual strips by using
incorrect white correction data caused by scanning
scratches , dirt and dusts on white reference object
when re-generate white correction data .
3) Refer the function specification about how to generate
new white correction data
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