Visual Basic
C#
Managed Extensions for C++
C++/CLI
Parameters
- page
- An ImageGear.Core.ImGearPage class object to be transformed.
Return Value
ImGearComplexObject class.This method computes the forward Discrete Cosine Transform (DCT) of the input image. The difference between this method and ForwardDCT method is that this one takes an ImageGear.Core.ImGearPage class as the input.
Before using this method, like other frequency processing methods, InitializeFFTW method must be called first to initialize the support for FFTW.
Can be applied only to 8, 16, or 32bit grayscale images with one channel.
ImGearFrequencyProcessingVerifier.CanApplyForwardDCTFromImage method can be called to check whether the operation can be performed or not.