Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "ltwrappr.h"
virtual L_INT LBitmap::Invert(uFlags = 0)
L_UINT32 uFlags; |
/* flags */ |
Inverts the colors in the class object's bitmap, making it like a photographic negative.
Parameter |
Description |
uFlags |
Reserved for future use. Must be 0. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
This function can also be used to invert the color of a 1-bit image, making the black white and the white black.
This function originally works on the image source data, but if the image has a LUT, the function will work on the LUT.
To use this function with source data for an image that has LUT:
1. |
Set the LBitmapBase::EnableUseLUT to FALSE. |
2. |
Call this function. |
3. |
After applying the function, set the LBitmapBase::EnableUseLUT back to TRUE. |
myBitmap.EnableUseLUT(FALSE);
myBitmap.Invert();
myBitmap.EnableUseLUT(TRUE);
To update a status bar or detect a user interrupt during execution of this function, refer to LBase::EnableStatusCallback.
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 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
Required DLLs and Libraries
LTDIS For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64.
See Also
Example
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName L_INT LBitmap__InvertExample() { L_INT nRet; LBitmap LeadBitmap; nRet =LeadBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")), 0,ORDER_BGR); if(nRet !=SUCCESS) return nRet; nRet =LeadBitmap.Invert(); if(nRet !=SUCCESS) return nRet; return SUCCESS; }