LBitmap::ConvertUnsignedToSigned
#include "ltwrappr.h"
virtual L_INT LBitmap::ConvertUnsignedToSigned(uFlag)
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L_UINT uFlag; |
/* flag */ |
Converts an unsigned bitmap to signed.
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Parameter |
Description |
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uFlag |
Flag that indicates how to process bits outside the low bit to high bit range. Possible values are: |
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Value |
Meaning |
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PROCESS_RANGE_ONLY |
[0x0001] Shift data by adding half the range to each pixel without changing bits outside the (LowBit-HighBit) range. |
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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. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
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.
Required DLLs and Libraries
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LTIMG For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
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Functions: |
LBitmapBase::ClearNegativePixels, LBitmap::ConvertSignedToUnsigned |
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Topics: |
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Example
L_VOID MyConvertUnsignedToSigned(LBitmap * plBitmap)
{
/* convert bitmap to signed */
if(!plBitmap->IsPixelsSigned() )
plBitmap->ConvertUnsignedToSigned(PROCESS_RANGE_ONLY);
}