ForwardDCTFromImage Method

Description:

Computes the forward Discrete Cosine Transform (DCT) of the input image. The difference between this method and ForwardDCT() is that this method takes an IGPage Object as the input.

Syntax:

      ForwardDCTFromImage(pPage As IGPage) As IGComplexObject

Parameters:

Name	Description
pPage	IGPage Object to process.

Return Value:

Returns an IGComplexObject Object, which contains result data.

Bits Per Pixel:

8, 16, 32-bit grayscale images with one channel

Sample:

FreqIP