MathFunction Method (ILEADRasterProcess)
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short MathFunction(ILEADRaster* pRaster, ManipulationConstants Type, long lFactor) | |
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Overview |
Refer to Changing Brightness and Contrast |
Remarks
Re-maps the image colors according to a mathematical function such as: square, log, square root, sine and cosine.
This method uses the RGB color space.
This method makes it possible to apply one of five mathematical functions to a bitmap’s pixel values: square, square root, log, sine and cosine.
Select the mathematical operation to be performed on each pixel’s values with the Type parameter. The resulting values are multiplied by the factor lFactor. The lFactor parameter can be any value greater than 0. It is divided internally by different amounts, according to the type of the function being used.
If the bitmap has a region, the effect will be applied on the region only.
Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
This method 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 method.
See Also