Increases or decreases the saturation of colors in the class object's bitmap.
virtual L_INT LBitmap::ChangeSaturation(nChange, uFlags = 0)
Amount to change saturation. Values are percentages between -100 and +100.
Reserved for future use. Must be 0.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
Negative values decrease the saturation of colors. Positive values increase the saturation. The saturation level is increased or decreased by a percentage of its present saturation level. For example, an increase of 20% of the current saturation level "L" will raise the new saturation level "L1" to a value L + 0.20 * L. Likewise, increasing the saturation level 100% doubles the saturation level ( L1 = L + 1.0 * L). Decreasing the saturation level 100% will set the new saturation level to 0. This process is carried out for every pixel.
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 signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
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.
Change Saturation Function - Before
Change Saturation Function - After
View additional platform support for this Change Saturation function.
nRet =m_Bitmap.Load(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\Image1.jpg")), 0,ORDER_BGR);
// Increase the Saturation
Medical Web Viewer .NET
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C API/C++ Class Libraries