ImageGear .NET v25.2 - Updated
ImageGear.Processing.Advanced Assembly / ImageGear.Processing Namespace / ImGearEffects Class / EdgeMap Method / EdgeMap(ImGearRasterPage,ImGearEdgeMapMethods,ImGearChannelRange) Method
An ImageGear.Core.ImGearRasterPage class object to detect edge map for.
Type of edge map operation to perform.
Channel range to apply the operation.




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    EdgeMap(ImGearRasterPage,ImGearEdgeMapMethods,ImGearChannelRange) Method
    In This Topic
    Performs the edge map operation specified by the method argument. Processes a specified range of channels.
    Syntax
    'Declaration
     
    Public Overloads Shared Sub EdgeMap( _
       ByVal page As ImGearRasterPage, _
       ByVal method As ImGearEdgeMapMethods, _
       ByVal channels As ImGearChannelRange _
    ) 
    'Usage
     
    Dim page As ImGearRasterPage
    Dim method As ImGearEdgeMapMethods
    Dim channels As ImGearChannelRange
     
    ImGearEffects.EdgeMap(page, method, channels)
    public static void EdgeMap( 
       ImGearRasterPage page,
       ImGearEdgeMapMethods method,
       ImGearChannelRange channels
    )
    public: static void EdgeMap( 
       ImGearRasterPage* page,
       ImGearEdgeMapMethods method,
       ImGearChannelRange channels
    ) 
    public:
    static void EdgeMap( 
       ImGearRasterPage^ page,
       ImGearEdgeMapMethods method,
       ImGearChannelRange channels
    ) 

    Parameters

    page
    An ImageGear.Core.ImGearRasterPage class object to detect edge map for.
    method
    Type of edge map operation to perform.
    channels
    Channel range to apply the operation.
    Remarks
    An edge map is an image that shows where there are changes in contrast in the original image. Where there are no changes, the resulting image is black. The stronger the contrast change, the brighter the resultant image. The different types of edge maps are slight variations of the algorithms used, and produce slightly different results.

    This method takes into account the ROI settings of page object, that are accessible via the ImageGear.Core.ImGearRasterPage.ROI property. By default ROI is set to the entire image.

    See Also