modul dasar image processing.pdf

7/25/2019 MODUL DASAR IMAGE PROCESSING.pdf

1/43

MODUL PRAKTIKUM DASAR IMAGE PROCESSING

1

Latihan 01

PROGRAM GET RGB

Desain Form

Listing Program

Dim DataR() As Integer, DataB() As Integer, DataG() As Integer

Private Sub cmdGetRGB_Click()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long

'========= Mendapatkan Tinggi dan Lebar Citra =====Tinggi = Picture1.ScaleHeight

Lebar = Picture1.ScaleWidth'==================================================

'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataG(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataB(Lebar, Tinggi) As Integer '(baris,kolom)'========================================


2/43


2

'====Agar Picture 2,3 dan 4 Lebar dan tingginya sama dengan Picture 1====With Picture2

.Cls

.Height = Tinggi

.Width = LebarEnd With

With Picture3.Cls.Height = Tinggi.Width = Lebar

End WithWith Picture4

.Height = Tinggi


'========================================================================

'==== PROSES PENGAMBILAN CITRA ====================For X = 0 To Lebar - 1 'kolom

For Y = 0 To Tinggi - 1 'Baris'===== Get Total Pixel =======Tot_Pix = Picture1.Point(X, Y)'=============================

'===== Get Red, Green, Blue ==Red = Tot_Pix And 255

'Rekam redDataR(X, Y) = Red

Tot_Pix = Tot_Pix / 256Green = Tot_Pix And 255

'Rekam greenDataG(X, Y) = Green

Tot_Pix = Tot_Pix / 256Blue = Tot_Pix And 255

'Rekam BlueDataB(X, Y) = Blue

'=============================

'===Menampilkan Citra========='warna RED di picture2Picture2.PSet (X, Y), RGB(Red, 0, 0)'warna GREEN di picture3Picture3.PSet (X, Y), RGB(0, Green, 0)'warna BLUE di picture4Picture4.PSet (X, Y), RGB(0, 0, Blue)

NextNext

End Sub

Private Sub cmdLoad_Click()Dim namafile As StringCD.DialogTitle = "Loading Gambar"CD.Filter = "Jpg file (*.jpg) |*.jpg"


3/43


3

CD.ShowOpennamafile = CD.FileNamePicture1.Picture = LoadPicture(namafile)Text1.Text = namafileEnd Sub

Hasil Program


4/43


4

Latihan 02

PROGRAM GRAYSCALE

Desain Form

Listing Program


Private Sub cmdGrayscale_Click()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long



5/43


5


'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataG(Lebar, Tinggi) As Integer '(baris,kolom)

ReDim DataB(Lebar, Tinggi) As Integer '(baris,kolom)'========================================

'====Agar Picture 2 Lebar dan tingginya sama dengan Picture 1====With Picture2

.Cls

.Height = Tinggi


'================================================================









'=============================

'===== Mendapatkan grey level =============Grey = Int((Red + Green + Blue) / 3)'==========================================

'==============Menampilkan citra===========Picture2.PSet (X, Y), RGB(Grey, Grey, Grey)'==========================================

NextNext

End Sub

Private Sub cmdLoad_Click()Dim namafile As StringCD.DialogTitle = "Loading Gambar"CD.Filter = "Jpg file (*.jpg) |*.jpg"


6/43


6

CD.ShowOpennamafile = CD.FileNamePicture1.Picture = LoadPicture(namafile)Text1.Text = namafileEnd Sub

Hasil Program


7/43


7

Latihan 03

PROGRAM BRIGHTNESS CITRA

Desain Form

Listing Program

Dim DataR() As Integer, DataB() As Integer, DataG() As IntegerDim tambah As Integer


8/43


8

Sub Brightness()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long

'========= Mendapatkan Tinggi dan Lebar Citra =====Tinggi = Picture1.ScaleHeightLebar = Picture1.ScaleWidth

'==================================================

'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataG(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataB(Lebar, Tinggi) As Integer '(baris,kolom)'========================================


.Cls

.Height = Tinggi


'================================================================


For Y = 0 To Tinggi - 1 'Baris'===== Get Total Pixel =======Tot_Pix = Picture1.Point(X, Y)

'=============================






'Rekam Blue

DataB(X, Y) = Blue'=============================

'==========Proses Brightness=================Rednew = Red + tambahGreennew = Green + tambahBluenew = Blue + tambah


9/43


9

If Rednew >= 255 Then Rednew = 255If Rednew = 255 Then Greennew = 255If Greennew = 255 Then Bluenew = 255If Bluenew


10/43


10


11/43


11

Latihan 04

PROGRAM CONTRAST CITRA

Desain Form

Listing Program

Dim DataR() As Integer, DataB() As Integer, DataG() As IntegerDim KP As Integer

Sub Contrast()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As Integer, grey As IntegerDim Tot_Pix As Long



12/43


12


'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataG(Lebar, Tinggi) As Integer '(baris,kolom)

ReDim DataB(Lebar, Tinggi) As Integer '(baris,kolom)'========================================


.Cls

.Height = Tinggi


'================================================================









'=============================

'==========Proses Contrast=================grey = Int((Red + Green + Blue) / 3)Redbaru = KP * (Red - grey) + greyGreenbaru = KP * (Green - grey) + greyBluebaru = KP * (Blue - grey) + greyIf (Redbaru > 255) Then Redbaru = 255If (Redbaru < 0) Then Redbaru = 0

If (Greenbaru > 255) Then Greenbaru = 255If (Greenbaru < 0) Then Greenbaru = 0If (Bluebaru > 255) Then Bluebaru = 255If (Bluebaru < 0) Then Bluebaru = 0'===========================================

'====Menampilkan citra=================================Picture2.PSet (X, Y), RGB(Redbaru, Greenbaru, Bluebaru)'======================================================


13/43


13

NextNext

End Sub

Private Sub HScroll1_Change()KP = HScroll1.ValueLabel1.Caption = KPContrastEnd Sub

Private Sub cmdLoad_Click()Dim namafile As StringCD.DialogTitle = "Loading Gambar"CD.Filter = "Jpg file (*.jpg) |*.jpg"CD.ShowOpennamafile = CD.FileName

Picture1.Picture = LoadPicture(namafile)Text1.Text = namafileEnd Sub

Hasil Program


14/43


14


15/43


15

Latihan 05

PROGRAM INVERS CITRA

Desain Form

Listing Program


Private Sub CmdThreshold_Click()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long



16/43


16

'==================================================

'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataG(Lebar, Tinggi) As Integer '(baris,kolom)ReDim DataB(Lebar, Tinggi) As Integer '(baris,kolom)

'========================================


.Cls

.Height = Tinggi


'================================================================


For Y = 0 To Tinggi - 1 'Baris

'===== Get Total Pixel =======Tot_Pix = Picture1.Point(X, Y)'=============================





Tot_Pix = Tot_Pix / 256

Blue = Tot_Pix And 255'Rekam BlueDataB(X, Y) = Blue

'=============================

'===Proses Invers======================Redanyar = 255 - RedGreenanyar = 255 - GreenBlueanyar = 255 - BlueIf (Redanyar < 0) Then Redanyar = 0If (Greenanyar < 0) Then Greenanyar = 0If (Blueanyar < 0) Then Blueanyar = 0'=======================================

'=====Menampilkan Citra====================================Picture2.PSet (X, Y), RGB(Redanyar, Greenanyar, Blueanyar)'==========================================================

NextNext

End Sub


17/43


17



Hasil Program


18/43


18

Latihan 06

PROGRAM THRESHOLD CITRA

Desain Form

Listing Program

Sub Threshold()Dim Tinggi As Long, Lebar As Long

Dim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Redbaru As IntegerDim Tot_Pix As Long, Gray As IntegerDim JumRed As Long, Total As Long, Redrata As Long



19/43


19

'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer 'baris,kolomReDim DataG(Lebar, Tinggi) As IntegerReDim DataB(Lebar, Tinggi) As Integer'========================================


End With









'=============================

JumRed = JumRed + RedNext

Next

Redrata = JumRed / (Tinggi * Lebar)

For X = 0 To Lebar - 1 'kolomFor Y = 0 To Tinggi - 1 'Baris






Tot_Pix = Tot_Pix / 256


20/43


20

Blue = Tot_Pix And 255'Rekam BlueDataB(X, Y) = Blue

'=============================

If Red < Redrata Then Red = 0

Picture2.PSet (X, Y), RGB(Red, 0, 0)

NextNext

End Sub

Private Sub cmdThreshold_Click()ThresholdEnd Sub

Private Sub cmdLoad_Click()Dim namafile As StringCD.DialogTitle = "Loading Gambar"CD.Filter = "Jpg file (*.jpg) |*.jpg"CD.ShowOpennamafile = CD.FileNamePicture1.Picture = LoadPicture(namafile)Text1.Text = namafileEnd Sub

Hasil Program


21/43


21


22/43


22

Latihan 07

PROGRAM TRANSLASI CITRA

Desain Form

Listing Program


Sub Translasi()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long, Gray As Integer

If Text1.Text = "" Then Text1.Text = 0If Text2.Text = "" Then Text2.Text = 0


23/43


23


'=== PEMESANAN Array Pada Data R,G,B ====

ReDim DataR(Lebar, Tinggi) As Integer 'baris,kolomReDim DataG(Lebar, Tinggi) As IntegerReDim DataB(Lebar, Tinggi) As Integer'========================================


End With









'=============================

Xbaru = X + Int(Text1.Text)Ybaru = Y + Int(Text2.Text)

Picture2.PSet (Xbaru, Ybaru), RGB(Red, Green, Blue)

NextNext

End Sub

Private Sub cmdLoad_Click()

End Sub


24/43


24

Private Sub cmdTranslasi_Click()If Text1.Text = "" And Text2.Text = "" Thena = MsgBox("Tentukan nilai pergeseran X atau Y nya...!!!", vbCritical, "Warning")ElseTranslasiEnd If

End Sub

Private Sub Text1_KeyPress(KeyAscii As Integer)If KeyAscii = 13 ThenText2.SetFocusEnd If

End Sub

Private Sub Text2_KeyPress(KeyAscii As Integer)If KeyAscii = 13 Then

cmdTranslasi.SetFocusEnd If

End Sub


Hasil Program


25/43


25


26/43


26

Latihan 08

PROGRAM FLIPPING CITRA

Desain Form

Listing Program


Sub Flipping()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long, Gray As IntegerDim a As Integer, b As Integer


27/43


27

If Text1.Text = "" Then Text1.Text = 0If Text2.Text = "" Then Text2.Text = 0

a = Int(Text1.Text)b = Int(Text2.Text)



With Picture2.Cls.Height = Tinggi





'Rekam red

DataR(X, Y) = RedTot_Pix = Tot_Pix / 256Green = Tot_Pix And 255




'=============================

If Text1.Text = 0 ThenXbaru = X

Ybaru = ((2 * b) - (Y + 2))ElseIf Text2.Text = 0 ThenXbaru = ((2 * a) - (X + 2))Ybaru = YElseXbaru = ((2 * a) - (X + 2))Ybaru = ((2 * b) - (Y + 2))End If


28/43


28

Picture2.PSet (Xbaru, Ybaru), RGB(Red, Green, Blue)Next

NextEnd Sub

Private Sub cmdFlipping_Click()If Text1.Text = "" And Text2.Text = "" Thena = MsgBox("Tentukan nilai flipping X atau Y nya...!!!", vbCritical, "Warning")ElseFlippingEnd If

End Sub

Private Sub Text1_KeyPress(KeyAscii As Integer)If KeyAscii = 13 ThenText2.SetFocus

End IfEnd Sub

Private Sub Text2_KeyPress(KeyAscii As Integer)If KeyAscii = 13 ThencmdFlipping.SetFocusEnd If

End Sub

Private Sub cmdLoad_Click()

Dim namafile As StringCD.DialogTitle = "Loading Gambar"CD.Filter = "Jpg file (*.jpg) |*.jpg"CD.ShowOpennamafile = CD.FileNamePicture1.Picture = LoadPicture(namafile)Text3.Text = namafileEnd Sub

Hasil Program


29/43


29


30/43


30

Latihan 09

PROGRAM SCALLING CITRA

Desain Form

Listing Program

Dim DataR() As Integer, DataB() As Integer, DataG() As IntegerDim skala As Integer

Private Sub HScroll1_Change()Dim Tinggi As Integer, Lebar As Integer


31/43


31

Dim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long, Gray As Integer


Lebar = Picture1.ScaleWidth


M = 0N = 0skala = HScroll1.ValueLabel1.Caption = HScroll1.Value


End With









'=============================

If skala > 0 Then'Skala BesarA = N + (skala / 2)b = M + (skala / 2)

Picture2.Height = Picture1.Height * skalaPicture2.Width = Picture1.Width * skala


32/43


32

Picture2.PSet (M, N), RGB(Red, Green, Blue)Picture2.PSet (M, A), RGB(Red, Green, Blue)Picture2.PSet (b, N), RGB(Red, Green, Blue)Picture2.PSet (b, A), RGB(Red, Green, Blue)

N = N + skala

ElseIf skala < 0 Then'Skala KecilXnew = X / (-skala): Ynew = Y / (-skala)Picture2.Height = Picture1.Height / (-skala)Picture2.Width = Picture1.Width / (-skala)Picture2.PSet (Xnew, Ynew), RGB(Red, Green, Blue)

ElseIf skala = 0 ThenPicture2.PSet (X, Y), RGB(Red, Green, Blue)

End IfNextM = M + skala

N = 0Next

End Sub



Hasil Program


33/43


33


34/43


34

Latihan 10

PROGRAM CROPPING CITRA

Desain Form

Listing Program


Private Sub cmdCropping_Click()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long, Gray As Integer


35/43


35

If Text1.Text = "" Then Text1.Text = 0If Text2.Text = "" Then Text2.Text = 0If Text3.Text = "" Then Text1.Text = 0If Text4.Text = "" Then Text2.Text = 0

X1 = Int(Text1.Text)

X2 = Int(Text4.Text)Y1 = Int(Text2.Text)Y2 = Int(Text3.Text)




End With

'==== PROSES PENGAMBILAN CITRA ====================For X = X1 To X2 'kolom

For Y = Y1 To Y2 'Baris'===== Get Total Pixel =======Tot_Pix = Picture1.Point(X, Y)'=============================







'=============================

Picture2.PSet (X, Y), RGB(Red, Green, Blue)

NextNext

End Sub


36/43


36



Hasil Program

Latihan 11

PROGRAM HISTOGRAM CITRA

Desain Form


37/43


37

Listing Program

Dim DataR() As Integer, DataB() As Integer, DataG() As IntegerDim HrRed() As Long, HrBlue() As Long, HrGreen() As LongDim HrGrey() As Long, e As Integer, Maxgrey As IntegerDim X As Integer, Y As Integer

Dim Maxred As Integer, Maxgreen As Integer, Maxblue As Integer, MinGrey As Integer

Sub Histogram()Dim Tinggi As Integer, Lebar As IntegerDim Red As Integer, Green As Integer, Blue As IntegerDim X As Integer, Y As IntegerDim Tot_Pix As Long, Gray As Integer


'=== PEMESANAN Array Pada Data R,G,B ====ReDim DataR(Lebar, Tinggi) As Integer 'baris,kolom

ReDim DataG(Lebar, Tinggi) As IntegerReDim DataB(Lebar, Tinggi) As IntegerReDim HrRed(0 To 255) As LongReDim HrGreen(0 To 255) As LongReDim HrBlue(0 To 255) As LongReDim HrGrey(0 To 255) As Long'========================================

'==== PROSES PENGAMBILAN CITRA ====================


38/43


38

For X = 0 To Lebar - 1 'kolomFor Y = 0 To Tinggi - 1 'Baris








'=============================

Grey = Int((Red + Green + Blue) / 3)

If Red > 255 Then Red = 255If Green > 255 Then Green = 255If Blue > 255 Then Blue = 255If Grey > 255 Then Grey = 255

HrRed(Red) = HrRed(Red) + 1HrGreen(Green) = HrGreen(Green) + 1HrBlue(Blue) = HrBlue(Blue) + 1HrGrey(Grey) = HrGrey(Grey) + 1

NextNext

For i = 0 To 255If Maxgrey < HrGrey(i) Then Maxgrey = HrGrey(i)If Maxred < HrRed(i) Then Maxred = HrRed(i)If Maxgreen < HrGreen(i) Then Maxgreen = HrGreen(i)If Maxblue < HrBlue(i) Then Maxblue = HrBlue(i)

a = Picture2.Height - HrGrey(i) / eb = Picture3.Height - HrRed(i) / ec = Picture4.Height - HrGreen(i) / e

d = Picture5.Height - HrBlue(i) / eX1 = i: Y1 = 0X2 = iPicture2.Line (X1, a)-(X2, Picture2.Height), RGB(i, i, i)Picture3.Line (X1, b)-(X2, Picture3.Height), RGB(i, 0, 0)Picture4.Line (X1, c)-(X2, Picture4.Height), RGB(0, i, 0)Picture5.Line (X1, d)-(X2, Picture5.Height), RGB(0, 0, i)

NextMinGrey = Maxgrey


39/43


39

End Sub

Private Sub cmdLoad_Click()Dim StrFileName As String

cd.ShowOpencd.DialogTitle = "Load Gambar"StrFileName = cd.FileNamePicture1.Picture = LoadPicture(StrFileName)

End Sub

Private Sub cmdHistogram_Click()e = 1HistogramLabel1.Caption = MaxgreyLabel2.Caption = Maxred

Label3.Caption = MaxgreenLabel4.Caption = MaxblueEnd Sub

Private Sub Form_Load()Maxgrey = 0Maxred = 0Maxgreen = 0Maxblue = 0End Sub

Private Sub Picture2_MouseMove(Button As Integer, Shift As Integer, X As Single, Y AsSingle)lblNilai.Caption = Str(X)End Sub

Hasil Program


40/43


40


41/43


41

Latihan 12

PROGRAM ROTATION CITRA

Desain Form

Listing Program

Private Sub cmdRotate_Click()Const Pi = 3.14159265359angle = Val(Text1.Text)Picture2.Cls

Call bmp_rotate(Picture1, Picture2, angle)End Sub

Sub bmp_rotate(pic1 As Control, pic2 As Control, ByVal theta!)Const Pi = 3.14159265359Dim c1x As IntegerDim c1y As IntegerDim c2x As Integer


42/43


42

Dim c2y As IntegerDim a As SingleDim r As IntegerDim p1x As IntegerDim p1y As IntegerDim p2x As Integer

Dim p2y As IntegerDim n As Integer

c1x = pic1.ScaleWidth / 2c1y = pic1.ScaleHeight / 2c2x = pic2.ScaleWidth / 2c2y = pic2.ScaleHeight / 2

n = pic2.ScaleWidthIf n < pic2.ScaleHeight Then n = pic2.ScaleHeightn = n / 2 - 1For p2x = 0 To n

For p2y = 0 To n

If p2x = 0 Thena = Pi / 2

Elsea = Atn(p2y / p2x)

End Ifr = Sqr(1& * p2x * p2x + 1& * p2y * p2y)

p1x = r * Cos(a + theta)p1y = r * Sin(a + theta)

c0& = pic1.Point(c1x + p1x, c1y + p1y)c1& = pic1.Point(c1x - p1x, c1y - p1y)c2& = pic1.Point(c1x + p1y, c1y - p1x)

c3& = pic1.Point(c1x - p1y, c1y + p1x)If c0& -1 Then pic2.PSet (c2x + p2x, c2y + p2y), c0&If c1& -1 Then pic2.PSet (c2x - p2x, c2y - p2y), c1&If c2& -1 Then pic2.PSet (c2x + p2y, c2y - p2x), c2&If c3& -1 Then pic2.PSet (c2x - p2y, c2y + p2x), c3&

Next

t% = DoEvents()Next

End Sub



43/43


Hasil Program

modul dasar image processing.pdf

Documents