Visible to Intel only — GUID: GUID-BA256396-9D69-4D70-8BE8-7AE70A764C89
Visible to Intel only — GUID: GUID-BA256396-9D69-4D70-8BE8-7AE70A764C89
Windowing Functions
This section describes Intel IPP windowing functions used in image processing. A window is a mathematical function by which pixel values are multiplied to prepare an image for the subsequent analysis. This procedure is often called ‘windowing'. In fact, a window function approaches zero towards the edges of the image avoiding strong distortions of spectral densities in the Fourier domain.
The Intel IPP provides two following types of window functions:
- Bartlett window function
- Hamming window function
These functions generate the window samples and applied them to the specified image. To obtain the window samples themselves, you should apply the desired function to the image with all pixel values set to 1.0. As the windowing operation is very time consuming, it may be useful if you want to apply the same window to the multiple images. In this case use one of the image multiplication functions (ippiMul) to multiply the pixel values of the image by the window samples.
- WinBartlettGetBufferSize, WinBartlettSepGetBufferSize,
Compute the size of the work buffer for the ippiWinBartlett or ippiWinBartlettSep function. - WinBartlett, WinBartlettSep
MODIFIED API. Apply Bartlett window function to the image. - WinHammingGetBufferSize, WinHammingSepGetBufferSize,
Compute the size of the work buffer for the ippiWinHamming or ippiWinHammingSep function. - WinHamming, WinHammingSep
MODIFIED API. Apply Hamming window function to the image.