IntegralImageGetRectangleSum Method (Int32, Int32, Int32)

public uint GetRectangleSum(
	int x,
	int y,
	int radius
)

Public Function GetRectangleSum ( 
	x As Integer,
	y As Integer,
	radius As Integer
) As UInteger

Parameters

x

Type: SystemInt32
X coordinate of central point of the rectangle.

y

Type: SystemInt32
Y coordinate of central point of the rectangle.

radius

Type: SystemInt32
Radius of the rectangle.

Return Value

The method calculates sum of pixels in square rectangle with odd width and height. In the case if it is required to calculate sum of 3x3 rectangle, then it is required to specify its center and radius equal to 1.

Reference