#include "l_bitmap.h"
L_LTIMGSFX_API L_INT L_RadialBlurBitmap (pBitmap, uDim, uStress, CenterPt, uFlags)
Blurs the image by rotating the pixels around the specified center point.
Pointer to the bitmap handle that references the bitmap on which to apply the effect.
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.
An integer that represents the amount of the blur intensity. Valid values are range in between 1 and 100.
POINT structure that contains the point around which the pixels are rotated.
Reserved for future use. Must be 0.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
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. Support for 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
Win32, x64.
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("sample5.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;
}
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