Automatic thresholding

Functions
VISP_EXPORT unsigned char	VISP_NAMESPACE_NAME::autoThreshold (VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &I, const vpAutoThresholdMethod &method, const unsigned char backgroundValue=0, const unsigned char foregroundValue=255)

Detailed Description

Automatic thresholding using various well-known methods.

Input image.

Image automatically thresholded with the Otsu method.

Tutorials

If you are interested in automatic thresholding, you may have a look at

• Tutorial: Automatic thresholding
• Tutorial: Contours extraction from a binary image
• Practical example: count the number of coins in an image

Function Documentation

autoThreshold()

VISP_EXPORT unsigned char VISP_NAMESPACE_NAME::autoThreshold	(	VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &	I,
		const vpAutoThresholdMethod &	method,
		const unsigned char	backgroundValue = 0,
		const unsigned char	foregroundValue = 255 )

Automatic thresholding.

Parameters

I	: Input grayscale image.
method	: Automatic thresholding method.
backgroundValue	: Value to set to the background.
foregroundValue	: Value to set to the foreground.

Examples

testAutoThreshold.cpp, tutorial-autothreshold.cpp, tutorial-contour.cpp, and tutorial-count-coins.cpp.