Gets the window center and the window width, if the LUT stored inside pBitmap
is linear. If the LUT stored inside pBitmap is not linear, the function will fail.
#include "l_bitmap.h"
L_LTIMGCOR_API L_INT L_GetLinearVOILUT(pBitmap, pCenter, pWidth, uFlags);
Pointer to the bitmap handle referencing the bitmap.
Pointer to a variable to be updated with the center of the range of color intensities that define your window of interest, if the LUT is linear. Cannot be NULL.
Pointer to a variable to be updated with the range of color intensities that define your window of interest, if the LUT is linear. Cannot be NULL.
Reserved for future use. Pass 0 for now.
Value | Meaning |
---|---|
SUCCESS | LUT is Linear (success). |
0 | LUT is not linear (fail). |
<0 | An error occurred. Refer to Return Codes. |
You have to pay attention to your signed images LUT. The upper half should contain negative values and lower half contains positive values.
This function supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available in the Document and Medical Imaging 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, Linux.
Check the linearity of the LUT and computes its window width and center by using L_GetLinearVOILUT function.
L_INT GetLinearVOILUTExample(pBITMAPHANDLE pBitmap, L_DOUBLE * pCenter, L_DOUBLE * pWidth)
{
return L_GetLinearVOILUT(pBitmap, pCenter, pWidth, 0);
}
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