1. Desainlah Form seperti gambar dibawah ini :
2. Kemudian ketikkan listing programnya.
Public Class Form1
Dim gambar2 As Bitmap
Private Sub btnhijau1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhijau1.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 - 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
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
PictureBox2.Image = PictureBox1.Image
End Sub
Private Sub btnhijau2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhijau2.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 + 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
Private Sub btngrayscale_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btngrayscale.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
Private Sub btnmerah1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnmerah1.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 - 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
Private Sub btnmerah2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnmerah2.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 + 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
Private Sub btnrotate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnrotate.Click
Dim Pb, Pc As Integer
Dim vM, vH, vB As Double
gambar2 = New Bitmap(PictureBox1.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
Private Sub btnbrigness1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnbrigness1.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 + 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
Private Sub btnbrigness2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnbrigness2.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 - 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
Private Sub btnnegatif_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnnegatif.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 = 255 - gambar2.GetPixel(Pc, Pb).R - 5
vH = 255 - gambar2.GetPixel(Pc, Pb).G - 5
vB = 255 - 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
End Class
3. Setelah dijalankan programnya
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