Tambahkan program berikut ke UnitGlobalThressolding. Doble klik button Global Thresolding lalu ketik program berikut
procedure TFormGlobalThreshold.btOpenClickSender: TObject; begin
if OpenPictureDialog1.Execute then begin
FileNameImg := OpenPictureDialog1.FileName; Caption := Mammo Analisys : + OpenPictureDialog1.FileName;
Image1.Picture.LoadFromFile OpenPictureDialog1.FileName; Image2.Visible := False;
end; end;
procedure TFormGlobalThreshold.btGlobalThresoldingClickSender: TObject; var thres:real;
begin Image2.Visible := True;
Image2.Picture.Graphic := Image1.Picture.Graphic; thres := StrToFloatDef EditThreshold.Text,5;
ImgGlobalThresholding Image2,thres,ProgressBar1; EditThreshold.Text := IntToStrRoundthres;
end; procedure TFormGlobalThreshold.btExitClickSender: TObject;
begin FormGlobalThreshold.Close;
end; end.
unit UnitImageProses; interface
uses WINPROCS, Graphics, ExtCtrls, ComCtrls, Variants;
type TFreqHist = array [0..255] of longint;
TMatrixFilter = array [1..16,1..16] of real; function RgbToGray Clr:TColor : byte;
function ImgGetGray var Image:TImage; x,y:integer : byte; procedure ImgConvertToGrayscale var Image1:TImage; var ProgressBar1:
TProgressBar; procedure ImgGlobalThresholding var Image:TImage; var thres:real; var
ProgressBar1: TProgressBar; implementation
const PercentR = 0.299;
PercentG = 0.587; PercentB = 0.114;
function ByteRange r:double : byte; begin
if r0 then ByteRange:=0 else if r255 then ByteRange:=255
else ByteRange:=Roundr; end;
function RgbToGray Clr:TColor : byte; var r,g,b:byte;
begin r := GetRValueClr;
g := GetGValueClr; b := GetBValueClr;
RgbToGray := ByteRange rPercentR + gPercentG + bPercentB; end;
function ImgGetGray var Image:TImage; x,y:integer : byte; begin
Result := RgbToGray Image.Canvas.Pixels[x,y]; end;
procedure ImgConvertToGrayscale var Image1:TImage; var ProgressBar1: TProgressBar;
var x,y:integer; ClrGray:byte; begin
ProgressBar1.Max := Image1.Width-1; ProgressBar1.Position := 0;
for x:=0 to Image1.Width-1 do begin
for y:=0 to Image1.Height-1 do begin
ClrGray := ImgGetGray Image1,x,y; Image1.Canvas.Pixels[x,y] := RGB ClrGray,ClrGray,ClrGray;
end; Image1.Repaint;
ProgressBar1.Position := x; end;
end; procedure ImgGlobalThresholding var Image:TImage; var thres:real; var
ProgressBar1: TProgressBar; var
x,y,counter:integer; m1,m2,n1,n2:real; Clr:TColor; ClrGray:byte;