Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class SetColorMatrix
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim rect As New Rectangle(20, 20, 200, 100)
Dim bitmap As New Bitmap("yourfile.jpg")
Dim ptsArray As Single()() = {New Single() {1, 0, 0, 0, 0}, New Single() {0, 1, 0, 0, 0}, New Single() {0, 0, 1, 0, 0}, New Single() {0, 0, 0, 0.5F, 0}, New Single() {0, 0, 0, 0, 1}}
Dim clrMatrix As New ColorMatrix(ptsArray)
clrMatrix.Matrix34 = 0.8F
clrMatrix.Matrix11 = 0.3F
Dim imgAttributes As New ImageAttributes
imgAttributes.SetColorMatrix(clrMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap)
g.FillRectangle(Brushes.Red, rect)
rect.Y += 120
g.FillEllipse(Brushes.Black, rect)
g.DrawImage(bitmap, New Rectangle(0, 0, bitmap.Width, bitmap.Height), 0, 0, bitmap.Width, bitmap.Height, GraphicsUnit.Pixel, imgAttributes)
g.Dispose()
End Sub
Public Sub New()
MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class