本文整理汇总了VB.NET中System.Drawing.Imaging.ColorMatrix类的典型用法代码示例。如果您正苦于以下问题：VB.NET ColorMatrix类的具体用法？VB.NET ColorMatrix怎么用？VB.NET ColorMatrix使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ColorMatrix类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Bitmap
Dim image As New Bitmap("InputColor.bmp")
Dim imageAttributes As New ImageAttributes()
Dim width As Integer = image.Width
Dim height As Integer = image.Height
' The following matrix consists of the following transformations:
' red scaling factor of 2
' green scaling factor of 1
' blue scaling factor of 1
' alpha scaling factor of 1
' three translations of 0.2
Dim colorMatrixElements As Single()() = { _
New Single() {2, 0, 0, 0, 0}, _
New Single() {0, 1, 0, 0, 0}, _
New Single() {0, 0, 1, 0, 0}, _
New Single() {0, 0, 0, 1, 0}, _
New Single() {0.2F, 0.2F, 0.2F, 0, 1}}
Dim colorMatrix As New ColorMatrix(colorMatrixElements)
imageAttributes.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap)
e.Graphics.DrawImage(image, 10, 10)
e.Graphics.DrawImage( _
image, _
New Rectangle(120, 10, width, height), _
0, _
0, _
width, _
height, _
GraphicsUnit.Pixel, _
imageAttributes)示例2: New ColorMatrix
' 导入命名空间
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