Applies an anti-aliasing filter to the class object's bitmap.
virtual L_INT LBitmap::AntiAlias (uThreshold, uDim, uFilter, uFlags = 0)
Threshold value that indicates which pixels to smooth. The application of the anti-aliasing filter on the image associates a value with each pixel. Only pixels with values above this threshold are smoothed.
Value that indicates the size of the anti-aliasing mask. For example, a value of three indicates an anti-aliasing mask of 3 X 3.
Flag that indicates the type of anti-aliasing filter to use. Possible values are:
|ANTIALIAS_1||[0x0000] Anti-alias the bitmap vertically and horizontally.|
|ANTIALIAS_2||[0x0001] Anti-alias the bitmap in all directions.|
|ANTIALIAS_3||[0x0002] Anti-alias the bitmap in all directions. The filter used for this option is different from the filter used for the ANTIALIAS_2 option.|
|ANTIALIAS_DIAG||[0x0003] Anti-alias the bitmap diagonally.|
|ANTIALIAS_HORZ||[0x0004] Anti-alias the bitmap horizontally.|
|ANTIALIAS_VERT||[0x0005] Anti-alias the bitmap vertically.|
Reserved for future use. Must be 0.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
The best results for anti-aliasing text can be obtained with the filter ANTIALIAS_2.
The value of the uDim parameter determines the extent of the anti-aliasing.
This function can process the whole image or a region of the image.
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.
The threshold valid values are:
The threshold is applied on channels separately.
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.
Anti Aliasing Function - Before
Anti Aliasing Function - After
View additional platform support for this Anti Aliasing function.
L_INT LBitmap__AntiAliasExample(LBitmap & Bitmap, L_TCHAR * szFile)
nRet =Bitmap.AntiAlias(128, 3, ANTIALIAS_1);
Medical Web Viewer .NET
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