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IMcOperations2Log Method

Performs an arithmetic Natural Logarithm operation on an image.

Namespace:  MediaCy.IQL.Operations
Assembly:  MediaCy.IQL.Operations (in MediaCy.IQL.Operations.dll) Version: 10.0.6912.0
Syntax
VB
Copy
Function Log ( 
	<OptionalAttribute> ScaleOffset As Object,
	<OptionalAttribute> vSourceImg As Object
) As McImage

Parameters

ScaleOffset (Optional)
Type: SystemObject
If given, a single value or an array of N-channels values that is used to scale the result before storing the operation result. If a single value is supplied, then that value is used to scale all channels; if an array is supplied each value in the array is used to scale the result for the corresponding color channel. If not given, no scaling is done. A scaling value of zero is ignored, so that no scaling of the result is done.
vSourceImg (Optional)
Type: SystemObject
Optional source image, operator applies to parent image when parameter is omitted.

Return Value

Type: McImage
The result McImage.
Remarks
Each source pixel channel X is replaced by Ln(X) * ScaleOffset. Pixel values less than or equal to zero are assigned the destination McImage.RangeMin value. The result is stored in the parent image or vSourceImg if there is no parent. For floating point image types, the stored results may exceed the bounds of the current destination McImage.RangeMin to McImage.RangeMax. These range properties are not changed automatically.
See Also