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CvInvokePyrUp Method
http://www.emgu.com
Performs up-sampling step of Gaussian pyramid decomposition. First it upsamples the source image by injecting even zero rows and columns and then convolves result with the specified filter multiplied by 4 for interpolation. So the destination image is four times larger than the source image.

Namespace: Emgu.CV
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 3.0.0.2161 (3.0.0.2161)
Syntax
public static void PyrUp(
	IInputArray src,
	IOutputArray dst,
	BorderType borderType = BorderType.Reflect101
)

Parameters

src
Type: Emgu.CVIInputArray
The source image.
dst
Type: Emgu.CVIOutputArray
The destination image, should have 2x smaller width and height than the source.
borderType (Optional)
Type: Emgu.CV.CvEnumBorderType
Border type
See Also