Emgu CV Library Documentation
Namespaces
Emgu.CV
Image(TColor, TDepth) Class
Image(TColor, TDepth) Methods
_Dilate Method
_EqualizeHist Method
_Erode Method
_Flip Method
_GammaCorrect Method
_MorphologyEx Method
_SmoothGaussian Method
_ThresholdBinary Method
_ThresholdBinaryInv Method
_ThresholdToZero Method
_ThresholdToZeroInv Method
_ThresholdTrunc Method
AbsDiff Method
Accumulate Method
AccumulateWeighted Method
Action Method
Add Method
AddWeighted Method
AllocateData Method
And Method
AvgSdv Method
BuildPyramid Method
Canny Method
Clone Method
Cmp Method
ConcateHorizontal Method
ConcateVertical Method
Convert Method
ConvertFrom Method
ConvertScale(TOtherDepth) Method
Convolution Method
Copy Method
CopyBlank Method
CountNonzero Method
Dilate Method
DisposeObject Method
Draw Method
DrawPolyline Method
Equals Method
Erode Method
Exp Method
FillConvexPoly Method
FindCornerSubPix Method
Flip Method
FromIplImagePtr Method
GetAverage Method
GetMoments Method
GetObjectData Method
GetSubRect Method
GetSum Method
GrabCut Method
HoughCircles Method
HoughLines Method
HoughLinesBinary Method
InPaint Method
InRange Method
Integral Method
Laplace Method
Log Method
LogPolar Method
MapDataToImage Method
MatchTemplate Method
Max Method
Min Method
MinMax Method
MorphologyEx Method
Mul Method
Not Method
Or Method
Pow Method
PyrDown Method
PyrUp Method
Resize Method
RoiParam Method
Rotate Method
Save Method
SetValue Method
SmoothBilateral Method
SmoothBlur Method
SmoothGaussian Method
SmoothMedian Method
Sobel Method
Split Method
Sub Method
SubR Method
ThresholdAdaptive Method
ThresholdBinary Method
ThresholdBinaryInv Method
ThresholdToZero Method
ThresholdToZeroInv Method
ThresholdTrunc Method
ToJpegData Method
WarpAffine Method
WarpPerspective Method
Xor Method
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ImageTColor, TDepthPyrDown Method

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

Namespace:  Emgu.CV
Assembly:  Emgu.CV.Platform.NetStandard (in Emgu.CV.Platform.NetStandard.dll) Version: 4.3.0.3890
Syntax
Copy
public Image<TColor, TDepth> PyrDown()

Return Value

Type: ImageTColor, TDepth
The downsampled image
See Also