The function cvPyrUp performs up-sampling step of Gaussian pyramid decomposition. First it upsamples this image by injecting even zero rows and columns and then convolves result with the specified filter multiplied by 4 for interpolation. So the resulting image is four times larger than the source image.
Assembly: Emgu.CV (Module: Emgu.CV) Version: 18.104.22.168 (22.214.171.124)
The upsampled image