VB.Net Tutorial/2D Graphics/Pixel — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 19:40, 26 мая 2010
Set Pixel and get Pixel
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class GetPixelSetPixel
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 curBitmap As New Bitmap("yourfile.jpg") g.DrawImage(curBitmap, 0, 0, curBitmap.Width, curBitmap.Height) Dim startTime As DateTime = DateTime.Now Dim i As Integer For i = 0 To 100 Dim j As Integer For j = 0 To 200 Dim curColor As Color = curBitmap.GetPixel(i, j) Dim ret As Integer = CInt((CInt(curColor.R) + CInt(curColor.G) + CInt(curColor.B)) / 3) curBitmap.SetPixel(i, j, Color.FromArgb(ret, ret, ret)) Next j Next i g.DrawImage(curBitmap, 0, 0, curBitmap.Width, curBitmap.Height) 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</source>