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IMcBackgroundBlackLevel Property

Black level used by Div to correct the background of an image.

Namespace:  MediaCy.IQL.Operations
Assembly:  MediaCy.IQL.Operations (in MediaCy.IQL.Operations.dll) Version: 10.0.6912.0
Syntax
VB
Copy
Property BlackLevel ( 
	Optional lChannel As Integer = 0
) As Double
	Get
	Set

Parameters

lChannel (Optional)
Type: SystemInt32
Optional channel index, first or unique channel when omitted.

Property Value

Type: Double
Remarks
Black level is defined as the gray level of the parts of the image that do not reflect or transmit any light. With a camera, it can be obtained by grabbing an image with the lens cap on. The default value is 0.0. To avoid a negative value, the value of BlackLevel must be less than the average of the background image (see Div). For color images, each channel has its own value that can be accessed using the lChannel parameter.
See Also