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#include "l_ltimgcor.h"

L_LTIMGCOR_API L_INT L_BitmapWienerFilter(pBitmap, pPSF, dNoiseToSignalRatio, uFlags)

pBITMAPHANDLE pBitmap; pointer to a bitmap handle
POINTSPREADFUNCTION pPSF; pointer to a structure
L_DOUBLE dNoiseToSignalRatio; noise-to-signal power ratio
L_UINT uFlags; flags

Applies a Wiener filter to an image to de-blur it.

Parameter Description
pBitmap Pointer to the bitmap handle referencing the bitmap to which the Wiener filter will be applied.
pPSF Pointer to a POINTSPREADFUNCTION structure.
dNoiseToSignalRatio The noise-to-signal power ratio of the additive noise in the original image.
uFlags Reserved for future use.


SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


The Wiener filter can be useful when the point spread function and added noise are either known or can be estimated.

Use the Run method to apply the Wiener filter on the distorted image.

Use the L_BitmapAdaptiveWienerFilter to remove noise from images. Use the L_BitmapWienerFilter to de-blur an image.

This function supports 24-bit color images and 8-bit grayscale images.

This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.


Win32, x64, Linux.

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