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Using Character Recognition Rate
This is set for using the recognition rate of recognized characters. The recognition rate is calculated by
comparing recognized characters to dictionary characters.
1.
Select a method from "No", "Correlation
Value", "Subtraction", "Max.", "Min." or
"Average in "Recognition rate method".
Default: "No"
How to calculate
No
Not calculate the recognition rate.
Correlation
Value
Calculates the recognition rate from the correlation value (similarity
degree) between recognized characters and dictionary data.
When multiple dictionary data is registered, the maximum value of them
is output.
Subtraction
Performs subtraction with dictionary data (comparing the gray values
between dictionary data and detected characters and extracting pixels
that shows the difference in the grayscale value of subtraction
threshold), and calculates the recognition rate from the result.
When multiple dictionary data is registered, the maximum value of them
is output.
Max.
The maximum value calculated from the correlation value between
recognized characters and dictionary data and the result of subtraction
is treated as the recognition rate.
Min.
The minimum value calculated from the correlation value between
recognized characters and dictionary data and the result of subtraction
is treated as the recognition rate.
Average
The averaged value calculated from the correlation value between
recognized characters and dictionary data and the result of subtraction
is treated as the recognition rate.
The recognition rate is the integer between 0 to 100. When a recognized
character is the same as dictionary data, the recognition rate is 100.
Subtraction
With this setting, tiny defects of
characters can be defected more than
Correlation which detects a defect using
the similarity degree of whole characters.
Dictionary image
Inspection image
Subtraction result
2.
Select a method from "Details Mode",
"Rough+Details Mode" or "Rought". Select the
comparative accuracy between recognized
characters and dictionary data. In case of
"Rough+Details Mode", the higher recognition
rate is output after the calculations with
"Detailed Mode" and "Rougth".
Default: "Detailed Mode"
Summary of Contents for IMAGECHECKER PV230
Page 9: ...7 Preset menu 1ch Chapter 1 Preset Menu ...
Page 15: ...13 OCR Checker 2ch Chapter 2 OCR Checker ...
Page 61: ...59 Code Reader Checker 3ch Chapter 3 Code Reader Checker ...
Page 86: ......
Page 90: ...88 List of Output to Numerical Calculation Judgement and Data R W 3ch MEMO ...
Page 91: ...89 Communication Commands 4ch Chapter 4 Communication Commands ...
Page 109: ...107 Other Functions 5ch Chapter 5 Other Functions ...