Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "l_bitmap.h"
L_LTIMGSFX_API L_INT L_RadialBlurBitmap (pBitmap, uDim, uStress, CenterPt, uFlags)
pBITMAPHANDLE pBitmap; |
/* pointer to the bitmap handle */ |
L_UINT uDim; |
/* effect size */ |
L_UINT uStress; |
/* effect intensity */ |
POINT CenterPt; |
/* effect center */ |
L_UINT32 uFlags; |
/* flags */ |
Blurs the image by rotating the pixels around the specified center point.
Parameter |
Description |
pBitmap |
Pointer to the bitmap handle that references the bitmap on which to apply the effect. |
uDim |
An integer that represents the size of the neighborhood used in blurring. Increasing this value will increase the amount of blurring. Valid values are range in between 1 and 100. |
uStress |
An integer that represents the amount of the blur intensity. Valid values are range in between 1 and 100. |
CenterPt |
POINT structure that contains the point around which the pixels are rotated. |
uFlags |
Reserved for future use. Must be 0. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
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.
The function will blur the image in a radial form around the specified CenterPt. The center point must be defined inside the bitmap or inside the region, if the bitmap has a region.
If the bitmap has a region, the effect will be applied on the region only.
This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Supportfor 12 and 16-bit grayscale and 48 and 64-bit color images is available in the Document and Medical Imaging toolkits.
To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.
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
LTIMGSFX 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.
See Also
Example
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName #if defined (LEADTOOLS_V16_OR_LATER) L_INT RadialBlurBitmapExample(L_VOID) { L_INT nRet; BITMAPHANDLE LeadBitmap; /* Bitmap handle for the image */ POINT CenterPt; /* Load a bitmap at its own bits per pixel */ nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\Image3.cmp")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); if(nRet !=SUCCESS) return nRet; /* Radial blur*/ CenterPt.x = LeadBitmap.Width/2; CenterPt.y = LeadBitmap. Height/2; nRet = L_RadialBlurBitmap (&LeadBitmap, 50, 10, CenterPt, 0); 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; } #else L_INT RadialBlurBitmapExample(L_VOID) { L_INT nRet; BITMAPHANDLE LeadBitmap; /* Bitmap handle for the image */ POINT CenterPt; /* Load a bitmap at its own bits per pixel */ nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\Image3.cmp")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); if(nRet !=SUCCESS) return nRet; /* Radial blur*/ CenterPt.x = LeadBitmap.Width/2; CenterPt.y = LeadBitmap. Height/2; nRet = L_RadialBlurBitmap (&LeadBitmap, 50, 10, CenterPt); 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; } #endif // LEADTOOLS_V16_OR_LATER