Calculate sum of pixels in the specified rectangle.

Namespace:  AForge.Imaging
Assembly:  AForge.Imaging (in AForge.Imaging.dll) Version: 2.2.5.0 (2.2.5.0)

Syntax

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

Parameters

x
Type: System..::.Int32
X coordinate of central point of the rectangle.
y
Type: System..::.Int32
Y coordinate of central point of the rectangle.
radius
Type: System..::.Int32
Radius of the rectangle.

Return Value

Returns sum of pixels in the specified rectangle.

Remarks

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 3×3 rectangle, then it is required to specify its center and radius equal to 1.

See Also