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LBitmap::MotionBlur

Summary

Applies a filter, to the class object's bitmap, which creates the illusion of movement in an image.

Syntax

#include "ltwrappr.h"

virtual L_INT LBitmap::MotionBlur (uDim, nAngle, bUnidirectional, uFlags = 0)

Parameters

L_UINT uDim

Size of the blur effect, in pixels.

L_INT nAngle

Value that represents the direction of the motion, in hundredths of a degree (+/-) This value can be a number from 0 to 36000. If the value is positive, the motion will be clockwise. If the value is negative, the motion is counter-clockwise.

L_BOOL bUnidirectional

Flag that indicates whether the motion extends only in one direction. Possible values are:

Value	Meaning
TRUE	The motion blur effect is only in the direction specified in nAngle.
FALSE	The motion blur effect is along the line with that angle. For example, if nAngle is 0, the blur effect will occur in the 0 degree direction and the 180 degree direction.

L_UINT32 uFlags

Reserved for future use. Must be 0.

Returns

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

Comments

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 only in the Document/Medical toolkits.

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.

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.

Motion Blur Function - Before

Motion Blur Function - After

View additional platform support for this Motion Blur function.

Required DLLs and Libraries

LTDIS
LTFIL
LTIMGEFX
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.

Example

L_INT LBitmap__MotionBlurExample(LBitmap & Bitmap, L_TCHAR * szFile) 
{ 
   L_INT nRet; 
 
   nRet =Bitmap.Load(szFile); 
   if(nRet !=SUCCESS) 
      return nRet; 
   nRet =Bitmap.MotionBlur(20, 4500, FALSE); 
   if(nRet !=SUCCESS) 
      return nRet; 
    
   return SUCCESS; 
}