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psnvm
Beginner
31 Views

PyrUp

The documentation for PyrUp says:

"This function up-samples the source image pSrc, that is, inserts odd zero rows and columns, and then applies the 5x5 Gaussian multiplied by 4 to it."

Does using PyrUp on pSrc result in an output image pDst with dimensions (widthSrc*2+1, heightSrc*2+1), (widthSrc*2, heightSrc*2), or (widthSrc*2-1, heightSrc*2-1)? That is, does PyrUp only insert "internal" rows and columns, does it insert rows and columns on one side, or does it insert columns on both sides?

/Peter
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Intel_C_Intel
Employee
31 Views

Hi,

The output image of ippiPyrDown_Gauss5x5_ functions is two times greater than the input image (ie widthSrc*2, heightSrc*2)

Alexander