Table 1.

Mapping between subalgorithms employed by Algorithm ?? and OpenCV functions

Subalgorithm signature	OpenCV function signature
ChangeBrightnessAndContrast(image, alpha, beta)	convertTo(image, -1, alpha, beta)
MorphologicalCloseOperation(image, morphCloseNrOfIter)	morphologyEx(image, outputImage, MORPH_CLOSE, Mat(), Point(-1, -1), morphCloseNrOfIter)
GaussianBlur(image, kernelSize, standardDev)	GaussianBlur(image, outputImage, kernelSize, standardDev)
Threshold(image, thresholdValue)	threshold(image, outputImage, thresholdValue, 255 THRESH_BINARY)
DetectAndApproximateContours(image, approximationLevel)	findContours(image, contours, contoursHierarchy, CV_ RETR_CCOMP, CV_CHAIN_APPROX_NONE, Point())
	approxPolyDP(image, outputImage, approximationLevel, true)

The left column describes the signature of the subalgorithms employed by Algorithm ??. The right column describes the signature of the corresponding OpenCV function(s).