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L_MultiScaleEnhancementBitmap

#include "l_bitmap.h"

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

Enhances an image's 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.

Parameters

pBITMAPHANDLE pBitmap

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

Value that determines the type of filter that will be used when applying the MultiScale enhancement filter, one or more flags can be used. Possible values are:

Flags	Meaning
MSE_GAUSSIAN	[0x0000] Uses Gaussian filter.
MSE_RESAMPLE	[0x0001] Uses Resample 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_DONTUSE_MULTITHREADING	[0x0040] Do not use multi-threading (Use this with single-core CPUs).
MSE_DEFAULT	[-1] Use the default level value (which is 5).

Returns

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

Comments

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

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

Platforms

Win32, x64, Linux.

Functions

Topics

Example

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  
   if(LeadBitmap.Flags.Allocated)   
      L_FreeBitmap(&LeadBitmap);   
   return SUCCESS; 
}

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