virtual L_INT LBitmap::ConvertUnsignedToSigned(uFlags)
Converts an unsigned bitmap to signed.
Flag that indicates how to process bits outside the low bit to high bit range. Possible values are:
Value | Meaning |
---|---|
PROCESS_RANGE_ONLY | [0x0001] Shift data by adding half the range to each pixel without changing bits outside the (LowBit-HighBit) range. |
PROCESS_OUTSIDE_RANGE | [0x0002] Shift data by adding half the range to each pixel and set to zero all bits outside the (LowBit-HighBit) range. |
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
This function updates MaxVal and MinVal different values with new values that consider bitmap new sign. Also LBitmapBase::IsPixelsSigned() value will be set to one.
This function supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available only in the Document/Medical toolkits.
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.
Win32, x64.
L_INT LBitmap__ConvertUnsignedToSignedExample(LBitmap * plBitmap)
{
L_INT nRet;
/* convert bitmap to signed */
if(!plBitmap->IsPixelsSigned() )
{
nRet =plBitmap->ConvertUnsignedToSigned(PROCESS_RANGE_ONLY);
if(nRet !=SUCCESS)
return nRet;
}
else
return FAILURE;
return SUCCESS;
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
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Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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