Denso RC5 Specifications download pdf (Page 597)

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Chapter 21 Vision Control (Option)

21-45

VISLEVEL (Function)

Function

Obtains a binarization level based on the histogram result.

Format

VISLEVEL (<Mode>[, <Reference area>[, <Processing object>] ] )

Explanation

<Mode> Designates the method of obtaining the binarization level (0 to 2).

0: Mode method

1: Discrimination analysis method

2: P tile method

For details, refer to Part 1 “6.1.1.5 Binarization”.

<Reference area> Designates the value of the area when the system

obtains the binarization level by the tiling method P (1 to

245760). If this is ignored, 1 will be the default setting.

<Processing object> Designates the object (white and black) when the system

obtains the binarization level by the tiling method P (0 or

1). If this is ignored, 1 will be the default setting.

0: Black (accumulated from brightness value 0)

1: White(accumulated from brightness value 255)

Note (1): <Reference area> and <Processing object> are not used in

the mode method and the discrimination analysis method.

Note (2): You should execute VISHIST before executing this function.

Note (3): If the designated data is incorrect, or the process result is

an error, the return value will be –1.

Note (4): For this instruction, a µ

µµ

µVision board (option) is required.

Related Terms

VISHIST

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