#include "l_bitmap.h"

L_LTIMGCOR_API L_INT L_MultiScaleEnhancementBitmap (pBitmap, uContrast, uEdgeLevels, uEdgeCoeff, uLatitudeLevels, uLatitudeCoeff, uFlags)


pointer to the bitmap handle

L_UINT uContrast;

amount of contrast enhancement

L_UINT uEdgeLevels;

number of levels used in edge enhancement

L_UINT uEdgeCoeff;

degree of edge enhancement

L_UINT uLatitudeLevels;

number of levels used in latitude reduction

L_UINT uLatitudeCoeff;

degree of latitude reduction

L_UINT uFlags;

flags that determine filter type

Enhances an images contrast, edges, and density range for use in Computed Radiography (CR), in a way that all relevant image features are rendered with an appropriate level of visibility.

Parameter Description
pBitmap Pointer to the bitmap handle.
uContrast Amount of contrast enhancement.
uEdgeLevels Number of levels used in edge enhancement.
uEdgeCoeff Degree of edge enhancement.
uLatitudeLevels Number of levels used in latitude reduction.
uLatitudeCoeff Degree of latitude reduction.
uFlags Value that determine the type of filter that will be used when applying the MultiScale enchancment filter, one or more flag can be used. Possible values are:
  Flags Meaning
  MSE_GAUSSIAN [0x0000] Uses Gaussian filter.
  MSE_RESAMPLE [0x0001] Uses Resmaple filter.
  MSE_BICUBIC [0x0002] Uses Bicubic filter.
  MSE_NORMAL [0x0003] Uses Normal filter.
  MSE_EDGEENH [0x0010] Adds the latitude reduction option. When this flag is set, the uLatitudeLevels and uLatitudeCoeff parameters will be used.
  MSE_LATRED [0x0020] Adds the edge enhancement option. When this flag is set, the uEdgeLevels and uEdgeCoeff properties will be used.
  MSE_DEFAULT [-1] Use the default level value (which is 5).



The function was successful.

< 1

An error occurred. Refer to Return Codes.


It also can process the whole image or a region of the image. If a bitmap has a region, the effect is applied only to the region.

This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.

Required DLLs and Libraries


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.

See Also


L_ChangeBitmapContrast, L_ChangeBitmapIntensity, L_GammaCorrectBitmap, L_StretchBitmapIntensity, L_RemapBitmapIntensity, L_InvertBitmap, L_ChangeBitmapHue, L_ChangeBitmapSaturation, L_HistoEqualizeBitmap, L_FillBitmap, L_GetPixelColor, L_PutPixelColor, L_GetBitmapHistogram, L_WindowLevel, L_HistoContrastBitmap, L_AddWeightedBitmaps, L_MultiplyBitmap, L_SelectiveColorBitmap, L_AllocFTArray, L_ChangeHueSatIntBitmap, L_ColorReplaceBitmap, L_ColorThresholdBitmap, L_DirectionEdgeStatisticalBitmap, L_FFTBitmap, L_FreeFTArray, L_FTDisplayBitmap, L_FrqFilterBitmap, L_FrqFilterMaskBitmap, L_MathFunctionBitmap, L_SubtractBackgroundBitmap, L_UserFilterBitmap, L_AdaptiveContrastBitmap, L_ApplyMathLogicBitmap, L_ColorIntensityBalance, L_ColorizeGrayBitmap, L_ContBrightIntBitmap, L_DigitalSubtractBitmap, L_DynamicBinaryBitmap, L_EdgeDetectEffectBitmap, L_FunctionalLightBitmap, L_SelectBitmapData, L_ShiftBitmapData


Raster Image Functions: Modifying Intensity Values


Removing Noise


This example loads a bitmap and applies multiscale enhancement.

L_INT MultiScaleEnhancementBitmapExample(L_VOID) 
   L_INT nRet; 
   BITMAPHANDLE LeadBitmap;   /* Bitmap handle to hold the loaded image. */ 
   /* Load the bitmap, keeping the bits per pixel of the file */ 
   nRet = L_LoadBitmap (MAKE_IMAGE_PATH(TEXT("IMAGE1.CMP")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGRORGRAY, NULL, NULL);  
   if(nRet !=SUCCESS) 
      return nRet; 
   // Apply multiscale enhancement 
   nRet = L_MultiScaleEnhancementBitmap(&LeadBitmap, 2000, 4, MSE_DEFAULT , 0, 0, MSE_GAUSSIAN | MSE_EDGEENH); 
   if(nRet !=SUCCESS) 
      return nRet; 
   nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL); 
   if(nRet !=SUCCESS) 
      return nRet; 
   //free bitmap  
   return SUCCESS; 

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