Listing Program
Public Class Form1
Dim gambar As Bitmap
Private Sub OpenCitraToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenCitraToolStripMenuItem.Click
OFD.Filter = "BMP|*.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 SaveCitraToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveCitraToolStripMenuItem.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.Jpeg)
End If
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 NegatifToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NegatifToolStripMenuItem.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
Pic2.Image = gambar
Pic2.Refresh()
Next
End With
End Sub
Private Sub BrigthnessToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BrigthnessToolStripMenuItem.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 DefaultGambarToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DefaultGambarToolStripMenuItem.Click
gambar = New Bitmap(Pic1.Image)
End Sub
Private Sub KeluarToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KeluarToolStripMenuItem.Click
End
End Sub
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
vM = 0
vH = 0
vB = 0
Else
vM = 255
vH = 255
vB = 255
End If
.SetPixel(Pc, Pb, Color.FromArgb(vM, vH, vB))
Next
Pic2.Image = gambar
Pic2.Refresh()
Next
End With
End Sub
Private Sub RotateToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RotateToolStripMenuItem.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 SmoothingToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SToolStripMenuItem.Click
Dim MF(2, 2) As Double
'MaskFilter.Show()
'matriks Filter
' 0 1 2
'0 a b c
'1 d e f
'2 g h i
'Filter smoothing
MF(0, 0) = 1 / 9 'a
MF(0, 1) = 1 / 9 'b
MF(0, 2) = 1 / 9 'c
MF(1, 0) = 1 / 9 'd
MF(1, 1) = 1 / 9 'e
MF(1, 2) = 1 / 9 'f
MF(2, 0) = 1 / 9 'g
MF(2, 1) = 1 / 9 'h
MF(2, 2) = 1 / 9 'i
gambar = New Bitmap(Pic1.Image)
Pic2.Image = gambar
Dim tempbmp As New Bitmap(Pic1.Image)
Dim DX As Integer = 1
Dim DY As Integer = 1
Dim Red As Integer, Green As Integer, Blue As Integer
With gambar
For i = DX To .Height - DX - 1
For j = DY To .Width - DY - 1
'proses matriks filter
'point(j,i)*e --> titik tengah
Red = CInt(.GetPixel(j, i).R) * MF(1, 1)
Green = CInt(.GetPixel(j, i).G) * MF(1, 1)
Blue = CInt(.GetPixel(j, i).B) * MF(1, 1)
'proses titik tetangga
'point(j-1,i-1)*a--> MF(0,0)--> titik kiri atas
If j - 1 < 1 And i - 1 < 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(0, 0))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(0, 0))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(0, 0))
Else
Red = Red + (CInt(.GetPixel(j - 1, i - 1).R) * MF(0, 0))
Green = Green + (CInt(.GetPixel(j - 1, i - 1).G) * MF(0, 0))
Blue = Blue + (CInt(.GetPixel(j - 1, i - 1).B) * MF(0, 0))
End If
'point(j,i-1)*b --> MF(0,1) --> titik atas
If i - 1 < 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(0, 1))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(0, 1))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(0, 1))
Else
Red = Red + (CInt(.GetPixel(j, i - 1).R) * MF(0, 1))
Green = Green + (CInt(.GetPixel(j, i - 1).G) * MF(0, 1))
Blue = Blue + (CInt(.GetPixel(j, i - 1).B) * MF(0, 1))
End If
'point(j+1,i-1)*c --> MF(0,2) --> titik kanan atas
If j + 1 > .Width - DY - 1 And i - 1 > 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(0, 2))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(0, 2))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(0, 2))
Else
Red = Red + (CInt(.GetPixel(j + 1, i - 1).R) * MF(0, 2))
Green = Green + (CInt(.GetPixel(j + 1, i - 1).G) * MF(0, 2))
Blue = Blue + (CInt(.GetPixel(j + 1, i - 1).B) * MF(0, 2))
End If
'point(j-1,i)*d --> MF(1,0) --> titik kiri
If j - 1 < 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(1, 0))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(1, 0))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(1, 0))
Else
Red = Red + (CInt(.GetPixel(j - 1, i).R) * MF(1, 0))
Green = Green + (CInt(.GetPixel(j - 1, i).G) * MF(1, 0))
Blue = Blue + (CInt(.GetPixel(j - 1, i).B) * MF(1, 0))
End If
'point(j+1,i)*f --> MF(1,2) --> titik kanan
If j + 1 > .Width - DY - 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(1, 2))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(1, 2))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(1, 2))
Else
Red = Red + (CInt(.GetPixel(j + 1, i).R) * MF(1, 2))
Green = Green + (CInt(.GetPixel(j + 1, i).G) * MF(1, 2))
Blue = Blue + (CInt(.GetPixel(j + 1, i).B) * MF(1, 2))
End If
'point(j-1,i+1)*g --> MF(2,0) --> titik kiri bawah
If j - 1 < 1 And i + 1 > .Height - DX - 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(2, 0))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(2, 0))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(2, 0))
Else
Red = Red + (CInt(.GetPixel(j - 1, i + 1).R) * MF(2, 0))
Green = Green + (CInt(.GetPixel(j - 1, i + 1).G) * MF(2, 0))
Blue = Blue + (CInt(.GetPixel(j - 1, i + 1).B) * MF(2, 0))
End If
'point(j,i+1)*g --> MF(2,1) --> titik bawah
If i + 1 > .Height - DX - 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(2, 1))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(2, 1))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(2, 1))
Else
Red = Red + (CInt(.GetPixel(j, i + 1).R) * MF(2, 1))
Green = Green + (CInt(.GetPixel(j, i + 1).G) * MF(2, 1))
Blue = Blue + (CInt(.GetPixel(j, i + 1).B) * MF(2, 1))
End If
'point(j+1,i+1)*h --> MF(2,2) --> titik kanan bawah
If j + 1 > .Width - DY - 1 And i + 1 > .Height - DX - 1 Then 'jika out of border ambil nilai tengah/point(x,y)
Red = Red + (CInt(.GetPixel(j, i).R) * MF(2, 2))
Green = Green + (CInt(.GetPixel(j, i).G) * MF(2, 2))
Blue = Blue + (CInt(.GetPixel(j, i).B) * MF(2, 2))
Else
Red = Red + (CInt(.GetPixel(j + 1, i + 1).R) * MF(2, 2))
Green = Green + (CInt(.GetPixel(j + 1, i + 1).G) * MF(2, 2))
Blue = Blue + (CInt(.GetPixel(j + 1, i + 1).B) * MF(2, 2))
End If
'normalisasi
If Red < 0 Then
Red = 0
Else
If Red > 255 Then
Red = 255
End If
End If
If Green < 0 Then
Green = 0
Else
If Green > 255 Then
Green = 255
End If
End If
If Blue < 0 Then
Blue = 0
Else
If Blue > 255 Then
Blue = 255
End If
End If
'simpan warna hasil smoothing ke point j,i
gambar.SetPixel(j, i, Color.FromArgb(Red, Green, Blue))
Next
If i Mod 10 = 0 Then
Pic1.Invalidate()
Me.Text = Int(100 * i / (Pic1.Image.Height - 2)).ToString & "%"
Pic1.Refresh()
End If
Next
End With
Pic1.Refresh()
Me.Text = "Proses Smoothing Image berhasil"
End Sub
Private Sub ContrastToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ContrastToolStripMenuItem.Click
gambar = New Bitmap(Pic1.Image)
Pic2.Image = gambar
Dim tempbmp As New Bitmap(Pic1.Image)
Dim DX As Integer = 1
Dim DY As Integer = 1
Dim Red, Green, Blue As Integer
Dim X, Y As Integer
Dim tc As Integer
tc = 5
With tempbmp
For X = DX To .Height - DX - 1
For Y = DY To .Width - DY - 1
Red = CInt(.GetPixel(Y, X).R)
Green = CInt(.GetPixel(Y, X).G)
Blue = CInt(.GetPixel(Y, X).B)
'Grey = (Red + Green + Blue) / 3 'konversi warna pada pixel Y,X ke grey
Red = Red * tc
Blue = Blue * tc
Green = Green * tc
If (Red > 255) Then
Red = 255
End If
If (Blue > 255) Then
Blue = 255
End If
If (Green > 255) Then
Green = 255
End If
gambar.SetPixel(Y, X, Color.FromArgb(Red, Green, Blue))
Next
If X Mod 10 = 0 Then
Pic1.Invalidate()
Pic2.Refresh()
End If
Next
End With
End Sub
Private Sub DerajatToolStripMenuItem2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DerajatToolStripMenuItem2.Click
Dim rgb As Image
rgb = Pic2.Image
If rgb IsNot Nothing Then rgb.RotateFlip(RotateFlipType.Rotate270FlipY)
Pic2.Image = rgb
End Sub
Private Sub DerajatToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DerajatToolStripMenuItem.Click
Dim rgb As Image
rgb = Pic2.Image
If rgb IsNot Nothing Then rgb.RotateFlip(RotateFlipType.Rotate270FlipX)
Pic2.Image = rgb
End Sub
Private Sub DerajatToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DerajatToolStripMenuItem1.Click
Dim rgb As Image
rgb = Pic2.Image
If rgb IsNot Nothing Then rgb.RotateFlip(RotateFlipType.Rotate180FlipY)
Pic2.Image = rgb
End Sub
End Class
Gambar Hasil Program
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