My Blog, My Journey: Pengolahan citra

Aplikasi Pengolahan Citra pada VB.NET

Sebenarnya saya kurang paham betul dengan pembuatan rotasi - rotasi pada citra gambar VB.NET ini, Tapi Mari kita belajar membuatnya ;;;;;----->
langkah pertama , buat Desainnya dulu seperti ini :

Untuk Listing Programnya silakan masukkan seperti ini :
Public Class Form1
    Dim gambar As Bitmap
Private Sub BinerToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BinerToolStripMenuItem.Click
        Dim Pb, Pc As Integer
        Dim rata, vM, vH, vB As Double
        With gambar
            For Pb = 0 To .Height - 1
                For Pc = 0 To .Width - 1
                    vM = .GetPixel(Pc, Pb).R
                    vH = .GetPixel(Pc, Pb).G
                    vB = .GetPixel(Pc, Pb).B
                    rata = (vM + vH + vB) / 3
                    If (rata < 128) Then
                        vH = 0
                        vM = 0
                        vB = 0
                    Else
                        vM = 255
                        vH = 255
                        vB = 255
                    End If
                    .SetPixel(Pc, Pb, Color.FromArgb(vM, vH, vB))
                Next
                Pic1.Image = gambar
                Pic2.Refresh()
            Next
        End With
    End Sub
Private Sub MenuStrip1_ItemClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ToolStripItemClickedEventArgs) Handles MenuStrip1.ItemClicked
        gambar = New Bitmap(Pic1.Image)
    End Sub
Private Sub NegativeImageToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NegativeImageToolStripMenuItem.Click
        Dim Pb, Pc As Integer
        Dim vM, vH, vB As Double
        With gambar
            For Pb = 0 To .Height - 1
                For Pc = 0 To .Width - 1
                    vM = 255 - .GetPixel(Pc, Pb).R
                    vH = 255 - .GetPixel(Pc, Pb).G
                    vB = 255 - .GetPixel(Pc, Pb).B
                    If vM <= 0 Then vM = 0
                    If vB <= 0 Then vB = 0
                    If vH <= 0 Then vH = 0
                    .SetPixel(Pc, Pb, Color.FromArgb(vM, vH, vB))
                Next
                Pic1.Image = gambar
                Pic2.Refresh()
            Next
        End With
    End Sub
Private Sub GrayscaleToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GrayscaleToolStripMenuItem.Click
        Dim Pb, Pc As Integer
        Dim Rt, vM, vH, vB As Double
        With gambar
            For Pb = 0 To .Height - 1
                For Pc = 0 To .Width - 1
                    vM = .GetPixel(Pc, Pb).R
                    vH = .GetPixel(Pc, Pb).G
                    vB = .GetPixel(Pc, Pb).B
                    Rt = (vM + vH + vB) / 3
                    .SetPixel(Pc, Pb, Color.FromArgb(Rt, Rt, Rt))
                Next
                Pic2.Image = gambar
                Pic2.Refresh()
            Next
        End With

    End Sub
Private Sub BrightnessToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BrightnessToolStripMenuItem.Click
        Dim Pb, pc As Integer
        Dim vM, vH, vB As Double
        With gambar
            For Pb = 0 To .Height - 1
                For pc = 0 To .Width - 1
                    vM = .GetPixel(pc, Pb).R + 5
                    vH = .GetPixel(pc, Pb).G + 5
                    vB = .GetPixel(pc, Pb).B + 5
                    If vM > 255 Then vM = 255
                    If vB > 255 Then vB = 255
                    If vH > 255 Then vH = 255
                    .SetPixel(pc, Pb, Color.FromArgb(vM, vH, vB))
                Next
                Pic2.Image = gambar
                Pic2.Refresh()
            Next
        End With

    End Sub
Private Sub RotateLeftToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RotateLeftToolStripMenuItem.Click
        Dim gambar2 = New Bitmap(Pic2.Image)
        gambar2 = New Bitmap(Pic2.Image)
        Pic2.Image = gambar2
        gambar2.RotateFlip(RotateFlipType.RotateNoneFlipX)
        Pic2.Image = gambar2
    End Sub
Private Sub RotateRightToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RotateRightToolStripMenuItem.Click
        Dim gambar2 = New Bitmap(Pic2.Image)
        gambar2 = New Bitmap(Pic2.Image)
        Pic2.Image = gambar2
        gambar2.RotateFlip(RotateFlipType.RotateNoneFlipY)
        Pic2.Image = gambar2
    End Sub
Private Sub ToolStripMenuItem2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripMenuItem2.Click
        Dim gambar2 = New Bitmap(Pic2.Image)
        gambar2 = New Bitmap(Pic2.Image)
        Pic2.Image = gambar2
        gambar2.RotateFlip(RotateFlipType.Rotate90FlipX)
        Pic2.Image = gambar2

    End Sub
Private Sub ToolStripMenuItem3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripMenuItem3.Click
        Dim Pb, Pc As Integer
        Dim vM, vH, vB As Double
        Dim gambar3 As Bitmap = New Bitmap(Pic1.Image)
        With gambar
            For Pb = .Height - 1 To 0 Step -1
                For Pc = .Width - 1 To 0 Step -1
                    vM = .GetPixel(Pc, Pb).R
                    vH = .GetPixel(Pc, Pb).G
                    vB = .GetPixel(Pc, Pb).B
                    gambar3.SetPixel(.Width - 1 - Pc, .Height - 1 - Pb, Color.FromArgb(vM, vH, vB))
                Next
                Pic2.Image = gambar3
                Pic2.Refresh()
            Next
        End With
        gambar = gambar3
    End Sub
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
        OFD.Filter = "MBP|*.bmp|JPG|*.Jpg"
        OFD.ShowDialog()

        If OFD.FileName = "" Then Exit Sub
        Pic1.Image = Image.FromFile(OFD.FileName)
        gambar = New Bitmap(Pic1.Image)
    End Sub
Private Sub SaveToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripMenuItem.Click
        SFD.Filter = "JPG|*.Jpg|BMP|*.bmp"
        SFD.ShowDialog()
        If SFD.FileName = "" Then Exit Sub
        If SFD.FilterIndex = 1 Then
            gambar.Save(SFD.FileName, System.Drawing.Imaging.ImageFormat.Bmp)
        End If
    End Sub
Private Sub ToolStripMenuItem4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripMenuItem4.Click
        Dim gambar2 = New Bitmap(Pic2.Image)
        gambar2 = New Bitmap(Pic2.Image)
        Pic2.Image = gambar2
        gambar2.RotateFlip(RotateFlipType.Rotate270FlipX)
        Pic2.Image = gambar2
    End Sub
Private Sub HijauToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles HijauToolStripMenuItem.Click
        Dim Pb, Pc As Integer
        Dim vM, vH, vB As Double

        Dim gambar2 = New Bitmap(Pic2.Image)
        For Pb = 0 To gambar2.Height - 1
            For Pc = 0 To gambar2.Width - 1
                vM = gambar2.GetPixel(Pc, Pb).R
                vH = gambar2.GetPixel(Pc, Pb).G + 10
                vB = gambar2.GetPixel(Pc, Pb).B
                If vH >= 255 Then vH = 255
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(vM, vH, vB))
            Next
            Pic2.Image = gambar2
            Pic2.Refresh()
        Next
    End Sub

    Private Sub MerahToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MerahToolStripMenuItem.Click
        Dim Pb, Pc As Integer
        Dim vM, vH, vB As Double

        Dim gambar2 = New Bitmap(Pic2.Image)
        For Pb = 0 To gambar2.Height - 1
            For Pc = 0 To gambar2.Width - 1
                vM = gambar2.GetPixel(Pc, Pb).R + 10
                vH = gambar2.GetPixel(Pc, Pb).G
                vB = gambar2.GetPixel(Pc, Pb).B
                If vM >= 255 Then vM = 255
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(vM, vH, vB))
            Next
            Pic2.Image = gambar2
            Pic2.Refresh()
        Next
    End Sub

    Private Sub BiruToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BiruToolStripMenuItem.Click
        Dim Pb, Pc As Integer
        Dim vM, vH, vB As Double

        Dim gambar2 = New Bitmap(Pic2.Image)
        For Pb = 0 To gambar2.Height - 1
            For Pc = 0 To gambar2.Width - 1
                vM = gambar2.GetPixel(Pc, Pb).R
                vH = gambar2.GetPixel(Pc, Pb).G
                vB = gambar2.GetPixel(Pc, Pb).B + 10
                If vB >= 255 Then vB = 255
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(vM, vH, vB))
            Next
            Pic2.Image = gambar2
            Pic2.Refresh()
        Next
    End Sub
Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitToolStripMenuItem.Click
        End
    End Sub

Tampilan BINER :