Friday, January 17, 2014

Pengolahan Citra


Program ini saya tujukan untuk memenuhi tugas saya kepada Dosen Pembimbing saya.Tugas Belajar Bahasa Pemograman.

Kali ini saya mau memposting tugas kuliah saya tentang pengolahan citra.

# Listing Program Pengolahan Citra

Public Class Form2
    Dim gambar2 As Bitmap

    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles MyBase.Load
        PictureBox2.Image = PictureBox1.Image
    End Sub

Button 1 : Button - Hijau
    Private Sub button1_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles button1.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.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 <= 0 Then Vm = 0
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(Vm, Vh, Vb))
            Next
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 2 : Button + Hijau

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button2.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.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
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 3 : Button Greyscale
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button3.Click
        Dim Pb, Pc As Integer
        Dim Rt, Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.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
                Rt = (Vm + Vh + Vb) / 3
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(Rt, Rt, Rt))
            Next
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 4 : - Merah
    Private Sub Button4_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button4.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.Image)
        For Pb = 0 To gambar2.Height - 1
            For Pc = 0 To gambar2.Width - 1
                Vm = gambar2.GetPixel(Pc, Pb).R + 5
                Vh = gambar2.GetPixel(Pc, Pb).G + 5
                Vb = gambar2.GetPixel(Pc, Pb).B + 5
                If Vm >= 255 Then Vm = 255
                If Vb >= 255 Then Vb = 255
                If Vh >= 255 Then Vh = 255
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(Vm, Vh, Vb))
            Next
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 5 : + Merah
    Private Sub Button5_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button5.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.Image)
        For Pb = 0 To gambar2.Height - 1
            For Pc = 0 To gambar2.Width - 1
                Vm = gambar2.GetPixel(Pc, Pb).R - 5
                Vh = gambar2.GetPixel(Pc, Pb).G - 5
                Vb = gambar2.GetPixel(Pc, Pb).B - 5
                If Vm <= 0 Then Vm = 0
                If Vb <= 0 Then Vb = 0
                If Vh <= 0 Then Vh = 0
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(Vm, Vh, Vb))
            Next
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 6 : Button Rotate
    Private Sub Button6_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button6.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.Image)
        Dim Gambar3 As Bitmap = New Bitmap(PictureBox1.Image)
        For Pb = gambar2.Height - 1 To 0 Step -1
            For Pc = gambar2.Width - 1 To 0 Step -1
                Vm = gambar2.GetPixel(Pc, Pb).R
                Vh = gambar2.GetPixel(Pc, Pb).G
                Vb = gambar2.GetPixel(Pc, Pb).B
                Gambar3.SetPixel(gambar2.Width - 1 - Pc, gambar2.Height - 1 - Pb, Color.FromArgb(Vm, Vh, Vb))
            Next
            PictureBox2.Image = Gambar3
            PictureBox2.Refresh()
        Next
    End Sub

Button 7 : - Britness
    Private Sub Button7_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button7.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.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 <= 0 Then Vh = 0
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(Vm, Vh, Vb))
            Next
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 8 : + Britness
    Private Sub Button8_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button8.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.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
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 9 : Button Negativ
    Private Sub Button9_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button9.Click
        Dim Pb, Pc As Integer
        Dim Vm, Vh, Vb As Double
        gambar2 = New Bitmap(PictureBox2.Image)
        For Pb = 0 To gambar2.Height - 1
            For Pc = 0 To gambar2.Width - 1
                Vm = 255 - gambar2.GetPixel(Pc, Pb).R
                Vh = 255 - gambar2.GetPixel(Pc, Pb).G
                Vb = 255 - gambar2.GetPixel(Pc, Pb).B
                If Vm <= 0 Then Vm = 0
                If Vb <= 0 Then Vb = 0
                If Vh <= 0 Then Vh = 0
                gambar2.SetPixel(Pc, Pb, Color.FromArgb(Vm, Vh, Vb))
            Next
            PictureBox2.Image = gambar2
            PictureBox2.Refresh()
        Next
    End Sub

Button 10 : Button Finish
    Private Sub Button10_Click(ByVal sender As System.Object, ByVal eAs System.EventArgs) Handles Button10.Click
        End
    End Sub
End Class

Dan hasil nya ada dibawah ini :







Hasil button - Hijau


Hasil Button + Hijau


Hasil Button grayscale


Hasil Button - Merah


Hasil Button + Merah


Hasil Button Rotate


Hasil Button + Brigness


Hasil Button -Brigness


Hasil Button Negatf

Terima Kasih dan Selamat mencoba ...^^





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