AdjustLevels Method (GrayscaleBitmap)

In This Topic

Adjusts the levels of an image histogram.

The method maps the input range of values (blackPoint..whitePoint) to the output range (outputBlack..outputWhite) using the specified gamma correction (midtone).

Syntax

Visual Basic
C#

'Declaration
 
Public Sub AdjustLevels( _
   ByVal blackPoint As System.Integer, _
   ByVal whitePoint As System.Integer, _
   ByVal outputBlack As System.Integer, _
   ByVal outputWhite As System.Integer, _
   Optional ByVal midtone As System.Single _
)

public void AdjustLevels( 
   System.int blackPoint,
   System.int whitePoint,
   System.int outputBlack,
   System.int outputWhite,
   System.float midtone
)

Parameters

blackPoint: The input black point (from 0 to 255).
whitePoint: The input white point (from 0 to 255).
outputBlack: The output black point (from 0 to 255).
outputWhite: The output white point (from 0 to 255).
midtone: The value of gamma correction.

Reference

GrayscaleBitmap Class
GrayscaleBitmap Members