http://www.emgu.com
Performs downsampling step of Gaussian pyramid decomposition. First it convolves source image with the specified filter and then downsamples the image by rejecting even rows and columns.

Namespace: Emgu.CV
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 2.4.10.1935 (2.4.10.1935)

Syntax

C#
public static void cvPyrDown(
	IntPtr src,
	IntPtr dst,
	FILTER_TYPE filter
)
Visual Basic
Public Shared Sub cvPyrDown ( 
	src As IntPtr,
	dst As IntPtr,
	filter As FILTER_TYPE
)
Visual C++
public:
static void cvPyrDown(
	IntPtr src, 
	IntPtr dst, 
	FILTER_TYPE filter
)
F#
static member cvPyrDown : 
        src : IntPtr * 
        dst : IntPtr * 
        filter : FILTER_TYPE -> unit 

Parameters

src
Type: System..::..IntPtr
The source image.
dst
Type: System..::..IntPtr
The destination image, should have 2x smaller width and height than the source.
filter
Type: Emgu.CV.CvEnum..::..FILTER_TYPE
Type of the filter used for convolution; only CV_GAUSSIAN_5x5 is currently supported.

See Also