GdPictureImaging.HistogramGetBlue Method

Computes the blue channel histogram of a GdPicture image.

public GdPictureStatus HistogramGetBlue(
    int ImageID, 
    ref int arHistoB
);

Visual Basic

Public Function HistogramGetBlue(
    ByVal ImageID As Integer, 
    ByRef arHistoB() As Integer
) As GdPictureStatus

Parameters

Parameters	Description
ImageID	GdPicture Image Identifier.
arHistoB	Output parameter. Array of 256 entries containing the blue channel histogram data.

Returns

A member of the GdPictureStatus enumeration.

Example

Copy Code

Dim oGdPictureImaging As New GdPictureImaging
Dim arHistoB(0 To 255) As Integer
Dim ImageID As Integer
 
oGdPictureImaging.SetLicenseNumber("XXX") 'Replace XXX by a demo or commercial license key
ImageID = oGdPictureImaging.CreateGdPictureImageFromFile("image.tif")
oGdPictureImaging.HistogramGetBlue(ImageID, arHistoB)
oGdPictureImaging.ReleaseGdPictureImage(ImageID)