childwin.~pas

数字图像模式识别工程软件设计第1章基于图像分析的黄豆质量评估系统

      BvalueArray[4] := p3[3 * i];
      BvalueArray[5] := p3[3 * (i + 1)];
      BvalueArray[6] := p4[3 * (i - 1)];
      BvalueArray[7] := p4[3 * i];
      BvalueArray[8] := p4[3 * (i + 1)];
      //调用选择排序过程
      SelectionSort(RvalueArray);
      //获取G分量的中间值
      p1[3 * i] := RvalueArray[4];
    end;
  end;
  BeanImage.Picture.Bitmap:=Bmp2;

  Bmp1.Free;
  Bmp2.Free;

end;

procedure TMDIChild.TotalThresholdInColorClick(Sender: TObject);
var
    p: PByteArray;
    Gray, x, y: Integer;
    Bmp: TBitmap;
    Child:TMDIChild;
begin
    Bmp := TBitmap.Create;
    Bmp.Assign(datamodule.LoadedBmp);
    Bmp.PixelFormat := pf24Bit; //设置为24位真彩色
    randomize;
    for y := 0 to Bmp.Height - 1 do
    begin
        p := Bmp.scanline[y];
        for x := 0 to Bmp.Width - 1 do
        begin //算出每一点的灰度值
   Gray := Round(p[x * 3 + 2] * 0.3 + p[x * 3 + 1] * 0.59 + p[x* 3] * 0.11);
            if gray >162 then //全局阀值162
            begin
                p[x * 3] := 255; p[x * 3 + 1] := 255; p[x * 3 + 2] := 255;
            end
            else
            begin
                p[x * 3] := 0; p[x * 3 + 1] := 0;  p[x * 3 + 2] := 0;
            end;
        end;
    end;
  Child:=TMDIChild.Create(Application);
  Child.Caption:= '全值阀值法(彩色图像)';
  TMDIChild(Child).BeanImage.picture.bitmap:=Bmp;
  Child.Width :=Child.BeanImage.picture.width+1;
  Child.height:=Child.BeanImage.picture.height+1;
  Bmp.Free;
  Child.ErodeProcess.Enabled:=true;
  Child.expand.Enabled:=true;
end;

procedure TMDIChild.HSL1Click(Sender: TObject);
begin
   if application.MessageBox('请点击左键选取黄豆的一块颜色','系统提示',
  MB_YesNo)=IDYes THEN
    begin
     mark2:=true ; BeanImage.Cursor :=crcross;
      ProcessedBmp := TBitmap.Create;
      ProcessedBmp.Assign(BeanImage.Picture.Bitmap);
    end
    else mark2:=false;
   end;
procedure TMDIChild.GrayClick(Sender: TObject);
var
    p: pbyteArray;
    x, y: Integer;
    Bmp: TBitmap;
    Gray: Integer;
begin
    Bmp := TBitmap.Create;
    Bmp.Assign(BeanImage.Picture.Bitmap);
    Bmp.PixelFormat := pf24bit;  //转为24位真彩色处理
    for y := 0 to Bmp.Height - 1 do
    begin
        //获取每一行像素信息
        p := Bmp.scanline[y];
        for x := 0 to Bmp.Width - 1 do
        begin
            //这里采用方法三
            //即 Y＝0.3R+059G+0.11B
            Gray := Round(p[3 * x + 2] * 0.3 + p[3 * x + 1] * 0.59
                + p[3 * x] * 0.11);
            //由于是24位真彩色，故一个像素点为三个字节
            p[3 * x + 2] := byte(Gray);
            p[3 * x + 1] := byte(Gray);
            p[3 * x] := byte(Gray);
           end;
    end;
    BeanImage.Picture.Bitmap := Bmp;
    Bmp.Free;
end;
procedure TMDIChild.FillHoleClick(Sender: TObject);
var
   Bmp: Tbitmap;    // 建立临时位图
   p: pByteArray;
   w,h,c,x,y: Integer;
begin
 Bmp := Tbitmap.Create;
   Bmp.Assign(BeanImage.Picture.Bitmap);
   w:= Bmp.Width ;
   H:= Bmp.Height ;
   withdrawBmp.Assign(BeanImage.Picture.Bitmap);
   withdraw.Enabled :=true;
   Bmp.PixelFormat := pf24bit;   //设置位图格式
   for y := 0 to Bmp.Height - 1 do  TempBmpPtr[y]:=Bmp.ScanLine[y];
   c:=0;
   for y := 0 to Bmp.Height -1 do
   begin
     p:= Bmp.ScanLine[y];
     for x := 0 to Bmp.Width -1 do
       begin
         if (p[3*x]=255) and (p[3*x+1]=255) and (p[3*x+2]=255)then     //clwhite;
           begin
             connect(w,h,c,x,y);
             c:=c+1;
            end;
      end;
   end;
   for y := 0 to Bmp.Height - 1 do
   begin
     p:= Bmp.ScanLine[y];
     for x := 0 to Bmp.Width - 1 do
       begin
         if ((p[3*x]=0) and  (p[3*x+1]=0) and (p[3*x+2]=255))then
           begin
              p[3*x]:=255 ;  p[3*x+1]:=255; p[3*x+2]:=255;
            end;
        end;
    end;
   BeanImage.Picture.Bitmap.Assign(Bmp) ;
   Bmp.Free;
   withdraw.Enabled :=true;
end;

procedure TMDIChild.MiddleValueFilterClick(Sender: TObject);
var
  Bmp1, Bmp2: Tbitmap;
  p1, p2, p3, p4: pbytearray;
  i, j,num: Integer;
begin
  self.DoubleBuffered := true;//设置双缓冲
  Bmp1 := Tbitmap.Create;
  Bmp2 := Tbitmap.Create;
  Bmp1.Assign(BeanImage.Picture.Bitmap);  //加载位图
  Bmp1.PixelFormat := pf24bit; //设置位图的像素格式
  //位图的大小
  Bmp1.Width := BeanImage.Picture.Graphic.Width;
  Bmp1.Height := BeanImage.Picture.Graphic.Height;
  //加载备份的位图
  Bmp2.Assign(BeanImage.Picture.Bitmap);
  Bmp2.PixelFormat := pf24bit;
  for num:=1 to 3 do
  begin
  for j := 1 to Bmp1.Height - 2 do
  begin
    //三条扫描线
    p1 := Bmp1.ScanLine[j];
    p2 := Bmp2.ScanLine[j - 1];
    p3 := Bmp2.ScanLine[j];
    p4 := Bmp2.ScanLine[j + 1];
    for i := 1 to Bmp1.Width - 2 do
    begin
      //对存储9个R分量的数组进行赋值
      RvalueArray[0] := p2[3 * (i - 1) + 2];
      RvalueArray[1] := p2[3 * i + 2];
      RvalueArray[2] := p2[3 * (i + 1) + 2];
      RvalueArray[3] := p3[3 * (i - 1) + 2];
      RvalueArray[4] := p3[3 * i + 2];
      RvalueArray[5] := p3[3 * (i + 1) + 2];
      RvalueArray[6] := p4[3 * (i - 1) + 2];
      RvalueArray[7] := p4[3 * i + 2];
      RvalueArray[8] := p4[3 * (i + 1) + 2];
      //调用排序过程
      SelectionSort(RvalueArray);
      //获取R分量的中间值
      p1[3 * i + 2] := RvalueArray[4];
      //对存储9个G分量的数组进行赋值
      GvalueArray[0] := p2[3 * (i - 1) + 1];
      GvalueArray[1] := p2[3 * i + 1];
      GvalueArray[2] := p2[3 * (i + 1) + 1];
      GvalueArray[3] := p3[3 * (i - 1) + 1];
      GvalueArray[4] := p3[3 * i + 1];
      GvalueArray[5] := p3[3 * (i + 1) + 1];
      GvalueArray[6] := p4[3 * (i - 1) + 1];
      GvalueArray[7] := p4[3 * i + 1];
      GvalueArray[8] := p4[3 * (i + 1) + 1];
      //调用选择排序
      SelectionSort(GvalueArray);
      //获取G分量的中间值
      p1[3 * i + 1] := GvalueArray[4];
      //对存储9个B分量的数组进行赋值
      BvalueArray[0] := p2[3 * (i - 1)];
      BvalueArray[1] := p2[3 * i];
      BvalueArray[2] := p2[3 * (i + 1)];
      BvalueArray[3] := p3[3 * (i - 1)];
      BvalueArray[4] := p3[3 * i];
      BvalueArray[5] := p3[3 * (i + 1)];
      BvalueArray[6] := p4[3 * (i - 1)];
      BvalueArray[7] := p4[3 * i];
      BvalueArray[8] := p4[3 * (i + 1)];
      //调用选择排序过程
      SelectionSort(BvalueArray);
      //获取G分量的中间值
      p1[3 * i] := BvalueArray[4];
    end;
  end;
   end;
    BeanImage.Picture.Bitmap := Bmp1;
  Bmp1.Free;
  Bmp2.Free;
end;

procedure TMDIChild.SelectionSort(var a: array of Integer);
var
  i, j, t: Integer;
begin
  for i := low(a) to high(a) - 1 do
    for j := high(a) downto i + 1 do
      if a[i] > a[j] then
      begin  //交换值(a[i], a[j], i, j);
        t := a[i];
        a[i] := a[j];
        a[j] := t;
      end;
end;

procedure TMDIChild.GrayStrechClick(Sender: TObject);
var
  p: PByteArray;
  x, y: Integer;
  Bmp1: TBitmap;
  Gray: byte;
  ScaleFactor: real;
  scanlinebytes: Integer;
begin
    Bmp1 := TBitmap.Create;
    Bmp1.Assign(BeanImage.Picture.Bitmap);
    Bmp1.PixelFormat := pf24bit;
    GetParam(Bmp1);
    p := Bmp1.scanline[0];
  ScaleFactor := 255/(OriginalRangeRight - OriginalRangeLeft);  //拉伸比例
  scanlinebytes := Integer(Bmp1.scanline[1]) - Integer(Bmp1.scanline[0]);
  //扫描线间距
  for y := 0 to Bmp1.Height - 1 do
  begin
    for x := 0 to Bmp1.Width - 1 do
    begin
      Gray := Round(p[x * 3 + 2] * 0.3 + p[x * 3 + 1] * 0.59 + p[x
        * 3] * 0.11);
      Gray := Round(ScaleFactor * (Gray - OriginalRangeLeft));
      //进行灰度拉伸
      p[x * 3 + 2] := Gray; p[x * 3 + 1] := Gray; p[x * 3] := Gray;
      //重新赋值
    end;
    inc(Integer(p), scanlinebytes);
  end;
    BeanImage.Picture.Bitmap := Bmp1;
    Bmp1.Free;
end;
procedure TMDIChild.GetParam(Bmp:TBitmap);
var
  p: PByteArray;
  x, y, i, j: Integer;
  Bmp1: TBitmap;
  Gray: byte;
  scanlinebytes: Integer;   //扫描线间距
begin
  Bmp1 := TBitmap.Create;  //创建实例
  Bmp1.Assign(Bmp);
  Bmp1.PixelFormat := pf24Bit; //24bit位图
  p := Bmp1.scanline[0];  //首行扫描线信息
  for i := 0 to 255 do
  begin
    GrayClass[i] := 0;
    //初始化数组为0
  end;
  scanlinebytes := Integer(Bmp1.scanline[1]) - Integer(Bmp1.scanline[0]);
  for y := 0 to Bmp1.Height - 1 do
  begin
    //注意边界,不能越界
    for x := 0 to Bmp1.Width - 1 do
    begin
      Gray := Round(p[x * 3 + 2] * 0.3 + p[x * 3 + 1] * 0.59 + p[x* 3]* 0.11);
      //求取灰度值
      for i := 0 to 255 do
      begin
        if Gray = i then
        begin
          GrayClass[i] := GrayClass[i] + 1;   //每级灰度像素点数
        end;
      end;
    end;   //指针增加,增加得其实是一个负值
    inc(Integer(p), scanlinebytes);
   end;
  Bmp1.Free;
  //释放资源
  for i := 0 to 255 do
  begin
    if GrayClass[i] <> 0 then
    begin
      OriginalRangeLeft := i;
      break;
      //获取最大灰度级
    end;
  end;
  for j := 255 downto 0 do
  begin
    if GrayClass[j] <> 0 then
    begin
      OriginalRangeRight := j;
      break;
      //获取最小灰度级
    end;
  end;
end;
procedure TMDIChild.ContrastClick(Sender: TObject);
var
    p: PByteArray;
    x, y: Integer;
    Bmp1: TBitmap;
begin
    Bmp1 := TBitmap.Create;
    Bmp1.Assign(BeanImage.Picture.Bitmap);
    Bmp1.PixelFormat := pf24bit;
      for y := 0 to Bmp1.Height - 1 do
    begin
        p := Bmp1.scanline[y];
        for x := 0 to Bmp1.Width - 1 do
        begin //确定阀值为200
            if (p[x * 3] > 200)  and  (p[x * 3] < 236)
            and (p[x * 3 + 1] > 200) and (p[x * 3 + 1] < 236)
                and (p[x * 3 + 2] > 200) and (p[x * 3 + 2] < 236) then
            begin
                p[x * 3] := min(255,(p[x * 3] + 20));
                p[x * 3 + 1] :=min(255,(p[x * 3 + 1] + 20));
                p[x * 3 + 2] :=min(255, (p[x * 3 + 2] + 20));
            end;
            if (p[x * 3] > 20) and (p[x * 3] < 200)
             and (p[x * 3 + 1] > 20)    and (p[x *3 + 1] <200)
             and (p[x * 3 + 2] > 20) and (p[x * 3 + 2] < 200) then
            begin
                p[x * 3] := max(0,(p[x * 3] - 20));
                p[x * 3 + 1] :=max(0, (p[x * 3 + 1] - 20));
                p[x * 3 + 2] := max(0,(p[x * 3 + 2] - 20));
            end;
        end;
    end;
    BeanImage.Picture.Bitmap := Bmp1;
    Bmp1.Free;
end;

procedure TMDIChild.StrengthSaturationClick(Sender: TObject);
  var
   x, y, ScanlineBytes: Integer;
   p: prgbtriplearray;
   RVALUE, bvalue, gvalue: Integer;
   hVALUE, sVALUE, lVALUE: Integer;
    Bmp1: TBitmap;
begin
   self.DoubleBuffered := true; //设置双缓冲
   Bmp1 := TBitMap.Create;
   Bmp1.Assign(BeanImage.Picture.Bitmap);
   Bmp1.PixelFormat := pf24bit;//指定为24位位图
   p := Bmp1.ScanLine[0];
   ScanlineBytes := Integer(Bmp1.ScanLine[1]) - Integer(Bmp1.ScanLine[0]);
    for y := 0 to Bmp1.Height - 1 do
      begin
         for x := 0 to Bmp1.Width - 1 do
            begin //获取RGB的三个分量值，并进行赋值
               RVALUE := p[x].rgbtRed;
               GVALUE := p[x].rgbtGreen;
               BVALUE := p[x].rgbtBlue;
               // 调用RGB转HSL过程，获取HSL三个分量值
               RGB_to_HSL(RVALUE, gVALUE, bVALUE, hVALUE, sVALUE, lVALUE);
               //饱和度值加20
               Svalue:=Svalue+20;
               Svalue := Min(100, Svalue);
               // 调用HSL转RGB程，获取RGB三个分量值
              HSL_to_RGB(hVALUE, sVALUE, lVALUE, rVALUE, gVALUE, bVALUE);
               p[x].rgbtRed := RVALUE;
               p[x].rgbtGreen := GVALUE;