ImageGear v26.5 - Updated
ImageGear.Core Assembly / ImageGear.Processing Namespace / ImGearRasterProcessing Class / StretchContrast Method / StretchContrast(ImGearRasterPage,ImGearContrastModes,ImGearChannelRange) Method
Image to process.
One of the contrast processing modes: ImGearContrastModes.PALETTE, ImGearContrastModes.PIXEL, ImGearContrastModes.AUTO.
Channel range to process.
Example




In This Topic
    StretchContrast(ImGearRasterPage,ImGearContrastModes,ImGearChannelRange) Method
    In This Topic
    Stretches image contrast. Processes specified range of channels.
    Syntax
    'Declaration
 
Public Overloads Shared Sub StretchContrast( _
   ByVal page As ImGearRasterPage, _
   ByVal mode As ImGearContrastModes, _
   ByVal channels As ImGearChannelRange _
) 
    'Usage
 
Dim page As ImGearRasterPage
Dim mode As ImGearContrastModes
Dim channels As ImGearChannelRange
 
ImGearRasterProcessing.StretchContrast(page, mode, channels)
    public static void StretchContrast( 
   ImGearRasterPage page,
   ImGearContrastModes mode,
   ImGearChannelRange channels
)
    public: static void StretchContrast( 
   ImGearRasterPage* page,
   ImGearContrastModes mode,
   ImGearChannelRange channels
) 
    public:
static void StretchContrast( 
   ImGearRasterPage^ page,
   ImGearContrastModes mode,
   ImGearChannelRange channels
)

    Parameters

    page
    Image to process.
    mode
    One of the contrast processing modes: ImGearContrastModes.PALETTE, ImGearContrastModes.PIXEL, ImGearContrastModes.AUTO.
    channels
    Channel range to process.
    Remarks
    Can be applied only to raster pages with standard (non Run-Ends) DIB.

    If ContrastMode is equal to ImGearContrastModes.PALETTE, DIB must have a palette.

    Use ImGearRasterProcessingVerifier.CanApplyStretchContrast method to check whether the operation can be performed.

    Example
    // Channel range to adjust contrast.
ImGearChannelRange igChannelRange = new ImGearChannelRange(0, igRasterPage.DIB.ChannelCount);
// Stretch the contrast.
ImGearRasterProcessing.StretchContrast(igRasterPage,
    ImGearContrastModes.AUTO, igChannelRange);
    ' Channel range to adjust contrast.
Dim igChannelRange As New ImGearChannelRange(0, igRasterPage.DIB.ChannelCount)
' Stretch the contrast.
ImGearRasterProcessing.StretchContrast(igRasterPage, ImGearContrastModes.AUTO, igChannelRange)
    See Also

    Reference

    ImGearRasterProcessing Class
    ImGearRasterProcessing Members
    Overload List
    ImGearRasterPage Class
    ImGearContrastModes Enumeration
    ImGearChannelRange Structure

     

     

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