ImageGear for .NET
Discrete Cosine Transform and Discrete Sine Transform
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ImageGear for .NET User Guide > Using ImageGear for .NET > Using ImageGear.FreqIP Namespace > Discrete Cosine Transform and Discrete Sine Transform

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Before using these functions, like other frequency processing functions, ImGearFrequencyProcessing.InitializeFFTW Method() must be called first to enable the support for FFTW.

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