Delphi基本图像处理方法代码,Delphi代码库,德仔网

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【Delphi】 Delphi基本图像处理方法
作者:秀清 / 发布于2015/5/13/ 807

	//浮雕
	procedure Emboss(SrcBmp,DestBmp:TBitmap;AzimuthChange:integer);overload;
	var
	i, j, Gray, Azimuthvalue, R, G, B: integer;
	SrcRGB, SrcRGB1, SrcRGB2, DestRGB: pRGBTriple;
	begin
	for i := 0 to SrcBmp.Height - 1 do
	begin
	 SrcRGB := SrcBmp.ScanLine[i];
	 DestRGB := DestBmp.ScanLine[i];
	 if (AzimuthChange >= -180) and (AzimuthChange < -135) then
	 begin
	 if i > 0 then
	 SrcRGB1 := SrcBmp.ScanLine[i-1]
	 else
	 SrcRGB1 := SrcRGB;
	 Inc(SrcRGB1);
	 SrcRGB2 := SrcRGB;
	 Inc(SrcRGB2);
	 end
	 else if (AzimuthChange >= -135) and (AzimuthChange < -90) then
	 begin
	 if i > 0 then
	 SrcRGB1 := SrcBmp.ScanLine[i-1]
	 else
	 SrcRGB1 := SrcRGB;
	 SrcRGB2 := SrcRGB1;
	 Inc(SrcRGB2);
	 end
	 else if (AzimuthChange >= -90) and (AzimuthChange < -45) then
	 begin
	 if i > 0 then
	 SrcRGB1 := SrcBmp.ScanLine[i-1]
	 else
	 SrcRGB1 := SrcRGB;
	 SrcRGB2 := SrcRGB1;
	 end
	 else if (AzimuthChange >= -45) and (AzimuthChange < 0) then
	 begin
	 SrcRGB1 := SrcRGB;
	 if i > 0 then
	 SrcRGB2 := SrcBmp.ScanLine[i-1]
	 else
	 SrcRGB2 := SrcRGB;
	 end
	 else if (AzimuthChange >= 0) and (AzimuthChange < 45) then
	 begin
	 SrcRGB2 := SrcRGB;
	 if (i < SrcBmp.Height - 1) then
	 SrcRGB1 := SrcBmp.ScanLine[i+1]
	 else
	 SrcRGB1 := SrcRGB;
	 end
	 else if (AzimuthChange >= 45) and (AzimuthChange < 90) then
	 begin
	 if (i < SrcBmp.Height - 1) then
	 SrcRGB1 := SrcBmp.ScanLine[i+1]
	 else
	 SrcRGB1 := SrcRGB;
	 SrcRGB2 := SrcRGB1;
	 end
	 else if (AzimuthChange >= 90) and (AzimuthChange < 135) then
	 begin
	 if (i < SrcBmp.Height - 1) then
	 SrcRGB1 := SrcBmp.ScanLine[i+1]
	 else
	 SrcRGB1 := SrcRGB;
	 SrcRGB2 := SrcRGB1;
	 Inc(SrcRGB1);
	 end
	 else if (AzimuthChange >= 135) and (AzimuthChange <= 180) then
	 begin
	 if (i < SrcBmp.Height - 1) then
	 SrcRGB2 := SrcBmp.ScanLine[i+1]
	 else
	 SrcRGB2 := SrcRGB;
	 Inc(SrcRGB2);
	 SrcRGB1 := SrcRGB;
	 Inc(SrcRGB1);
	 end;
	 for j := 0 to SrcBmp.Width - 1 do
	 begin
	 if (AzimuthChange >= -180) and (AzimuthChange < -135) then
	 begin
	 Azimuthvalue := AzimuthChange + 180;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= -135) and (AzimuthChange < -90) then
	 begin
	 Azimuthvalue := AzimuthChange + 135;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= -90) and (AzimuthChange < -45) then
	 begin
	 if j=1 then Inc(SrcRGB1,-1);
	 Azimuthvalue := AzimuthChange + 90;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= -45) and (AzimuthChange < 0) then
	 begin
	 if j=1 then
	 begin
	 Inc(SrcRGB1,-1);
	 Inc(SrcRGB2,-1);
	 end;
	 Azimuthvalue := AzimuthChange + 45;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= 0) and (AzimuthChange < 45) then
	 begin
	 if j=1 then
	 begin
	 Inc(SrcRGB1,-1);
	 Inc(SrcRGB2,-1);
	 end;
	 Azimuthvalue := AzimuthChange;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= 45) and (AzimuthChange < 90) then
	 begin
	 if j=1 then Inc(SrcRGB2,-1);
	 Azimuthvalue := AzimuthChange - 45;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= 90) and (AzimuthChange < 135) then
	 begin
	 Azimuthvalue := AzimuthChange - 90;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end
	 else if (AzimuthChange >= 135) and (AzimuthChange <= 180) then
	 begin
	 Azimuthvalue := AzimuthChange - 135;
	 R:=SrcRGB.rgbtRed-((SrcRGB1.rgbtRed)*Azimuthvalue div 45)-((SrcRGB2.rgbtRed)*(45-Azimuthvalue) div 45)+78;
	 G:=SrcRGB.rgbtGreen-((SrcRGB1.rgbtGreen)*Azimuthvalue div 45)-((SrcRGB2.rgbtGreen)*(45-Azimuthvalue) div 45)+78;
	 B:=SrcRGB.rgbtBlue-((SrcRGB1.rgbtBlue)*Azimuthvalue div 45)-((SrcRGB2.rgbtBlue)*(45-Azimuthvalue) div 45)+78;
	 end;
	 R:=Min(R,255);
	 R:=Max(R,0);
	 G:=Min(G,255);
	 G:=Max(G,0);
	 B:=Min(B,255);
	 B:=Max(B,0);
	 Gray := (R shr 2) + (R shr 4) + (G shr 1) + (G shr 4) + (B shr 3);
	 DestRGB.rgbtRed:=Gray;
	 DestRGB.rgbtGreen:=Gray;
	 DestRGB.rgbtBlue:=Gray;
	 if (j=-180) and (AzimuthChange<-135)) or ((AzimuthChange>=90) and (AzimuthChange<=180))) then
	 begin
	 Inc(SrcRGB1);
	 end;
	 if (j=135) and (AzimuthChange<180)) or ((AzimuthChange>=-180) and (AzimuthChange<=-90))) then
	 begin
	 Inc(SrcRGB2);
	 end;
	 Inc(SrcRGB);
	 Inc(DestRGB);
	 end;
	end;
	end;
	procedure Emboss(Bmp:TBitmap;AzimuthChange:integer;ElevationChange:integer;WeightChange:integer);overload;
	var
	DestBmp:TBitmap;
	begin
	　　DestBmp:=TBitmap.Create;
	　　DestBmp.Assign(Bmp);
	　　Emboss(Bmp,DestBmp,AzimuthChange,ElevationChange,WeightChange);
	　　Bmp.Assign(DestBmp);
	end;
	//反色
	procedure Negative(Bmp:TBitmap);
	var
	i, j: Integer;
	PRGB: pRGBTriple;
	begin
	Bmp.PixelFormat:=pf24Bit;
	for i := 0 to Bmp.Height - 1 do
	begin
	 PRGB := Bmp.ScanLine[i];
	 for j := 0 to Bmp.Width - 1 do
	 begin
	 PRGB^.rgbtRed :=not PRGB^.rgbtRed ;
	 PRGB^.rgbtGreen :=not PRGB^.rgbtGreen;
	 PRGB^.rgbtBlue :=not PRGB^.rgbtBlue;
	 Inc(PRGB);
	 end;
	end;
	end;
	//曝光
	procedure Exposure(Bmp:TBitmap);
	var
	i, j: integer;
	PRGB: pRGBTriple;
	begin
	Bmp.PixelFormat:=pf24Bit;
	for i := 0 to Bmp.Height - 1 do
	begin
	 PRGB := Bmp.ScanLine[i];
	 for j := 0 to Bmp.Width - 1 do
	 begin
	 if PRGB^.rgbtRed<128 then
	 PRGB^.rgbtRed :=not PRGB^.rgbtRed ;
	 if PRGB^.rgbtGreen<128 then
	 PRGB^.rgbtGreen :=not PRGB^.rgbtGreen;
	 if PRGB^.rgbtBlue<128 then
	 PRGB^.rgbtBlue :=not PRGB^.rgbtBlue;
	 Inc(PRGB);
	 end;
	end;
	end;
	//模糊
	procedure Blur(SrcBmp:TBitmap);
	var
	i, j:Integer;
	SrcRGB:pRGBTriple;
	SrcNextRGB:pRGBTriple;
	SrcPreRGB:pRGBTriple;
	Value:Integer;
	procedure IncRGB;
	begin
	 Inc(SrcPreRGB);
	 Inc(SrcRGB);
	 Inc(SrcNextRGB);
	end;
	procedure DecRGB;
	begin
	 Inc(SrcPreRGB,-1);
	 Inc(SrcRGB,-1);
	 Inc(SrcNextRGB,-1);
	end;
	begin
	SrcBmp.PixelFormat:=pf24Bit;
	for i := 0 to SrcBmp.Height - 1 do
	begin
	 if i > 0 then
	 SrcPreRGB:=SrcBmp.ScanLine[i-1]
	 else
	 SrcPreRGB := SrcBmp.ScanLine[i];
	 SrcRGB := SrcBmp.ScanLine[i];
	 if i < SrcBmp.Height - 1 then
	 SrcNextRGB:=SrcBmp.ScanLine[i+1]
	 else
	 SrcNextRGB:=SrcBmp.ScanLine[i];
	 for j := 0 to SrcBmp.Width - 1 do
	 begin
	 if j > 0 then DecRGB;
	 Value:=SrcPreRGB.rgbtRed+SrcRGB.rgbtRed+SrcNextRGB.rgbtRed;
	 if j > 0 then IncRGB;
	 Value:=Value+SrcPreRGB.rgbtRed+SrcRGB.rgbtRed+SrcNextRGB.rgbtRed;
	 if j < SrcBmp.Width - 1 then IncRGB;
	 Value:=(Value+SrcPreRGB.rgbtRed+SrcRGB.rgbtRed+SrcNextRGB.rgbtRed) div 9;
	 DecRGB;
	 SrcRGB.rgbtRed:=value;
	 if j > 0 then DecRGB;
	 Value:=SrcPreRGB.rgbtGreen+SrcRGB.rgbtGreen+SrcNextRGB.rgbtGreen;
	 if j > 0 then IncRGB;
	 Value:=Value+SrcPreRGB.rgbtGreen+SrcRGB.rgbtGreen+SrcNextRGB.rgbtGreen;
	 if j < SrcBmp.Width - 1 then IncRGB;
	 Value:=(Value+SrcPreRGB.rgbtGreen+SrcRGB.rgbtGreen+SrcNextRGB.rgbtGreen) div 9;
	 DecRGB;
	 SrcRGB.rgbtGreen:=value;
	 if j > 0 then DecRGB;
	 Value:=SrcPreRGB.rgbtBlue+SrcRGB.rgbtBlue+SrcNextRGB.rgbtBlue;
	 if j > 0 then IncRGB;
	 Value:=Value+SrcPreRGB.rgbtBlue+SrcRGB.rgbtBlue+SrcNextRGB.rgbtBlue;
	 if j < SrcBmp.Width - 1 then IncRGB;
	 Value:=(Value+SrcPreRGB.rgbtBlue+SrcRGB.rgbtBlue+SrcNextRGB.rgbtBlue) div 9;
	 DecRGB;
	 SrcRGB.rgbtBlue:=value;
	 IncRGB;
	 end;
	end;
	end;
	//锐化
	procedure Sharpen(SrcBmp:TBitmap);
	var
	i, j: integer;
	SrcRGB: pRGBTriple;
	SrcPreRGB: pRGBTriple;
	Value: integer;
	begin
	SrcBmp.PixelFormat:=pf24Bit;
	for i := 0 to SrcBmp.Height - 1 do
	begin
	 SrcRGB := SrcBmp.ScanLine[i];
	 if i > 0 then
	 SrcPreRGB:=SrcBmp.ScanLine[i-1]
	 else
	 SrcPreRGB:=SrcBmp.ScanLine[i];
	 for j := 0 to SrcBmp.Width - 1 do
	 begin
	 if j = 1 then Dec(SrcPreRGB);
	 Value:=SrcRGB.rgbtRed+(SrcRGB.rgbtRed-SrcPreRGB.rgbtRed) div 2;
	 Value:=Max(0,Value);
	 Value:=Min(255,Value);
	 SrcRGB.rgbtRed:=value;
	 Value:=SrcRGB.rgbtGreen+(SrcRGB.rgbtGreen-SrcPreRGB.rgbtGreen) div 2;
	 Value:=Max(0,Value);
	 Value:=Min(255,Value);
	 SrcRGB.rgbtGreen:=value;
	 Value:=SrcRGB.rgbtBlue+(SrcRGB.rgbtBlue-SrcPreRGB.rgbtBlue) div 2;
	 Value:=Max(0,Value);
	 Value:=Min(255,Value);
	 SrcRGB.rgbtBlue:=value;
	 Inc(SrcRGB);
	 Inc(SrcPreRGB);
	 end;
	end;
	end;
	[图像的旋转和翻转]
	以下代码用ScanLine配合指针移动实现，用于24位色！
	//旋转90度
	procedure Rotate90(const Bitmap:TBitmap);
	var
	i,j:Integer;
	rowIn,rowOut:pRGBTriple;
	Bmp:TBitmap;
	Width,Height:Integer;
	begin
	Bmp:=TBitmap.Create;
	Bmp.Width := Bitmap.Height;
	Bmp.Height := Bitmap.Width;
	Bmp.PixelFormat := pf24bit;
	Width:=Bitmap.Width-1;
	Height:=Bitmap.Height-1;
	for j := 0 to Height do
	begin
	 rowIn := Bitmap.ScanLine[j];
	 for i := 0 to Width do
	 begin
	 rowOut := Bmp.ScanLine[i];
	 Inc(rowOut,Height - j);
	 rowOut^ := rowIn^;
	 Inc(rowIn);
	 end;
	end;
	Bitmap.Assign(Bmp);
	end;
	//旋转180度
	procedure Rotate180(const Bitmap:TBitmap);
	var
	i,j:Integer;
	rowIn,rowOut:pRGBTriple;
	Bmp:TBitmap;
	Width,Height:Integer;
	begin
	Bmp:=TBitmap.Create;
	Bmp.Width := Bitmap.Width;
	Bmp.Height := Bitmap.Height;
	Bmp.PixelFormat := pf24bit;
	Width:=Bitmap.Width-1;
	Height:=Bitmap.Height-1;
	for j := 0 to Height do
	begin
	 rowIn := Bitmap.ScanLine[j];
	 for i := 0 to Width do
	 begin
	 rowOut := Bmp.ScanLine[Height - j];
	 Inc(rowOut,Width - i);
	 rowOut^ := rowIn^;
	 Inc(rowIn);
	 end;
	end;
	Bitmap.Assign(Bmp);
	end;
	//旋转270度
	procedure Rotate270(const Bitmap:TBitmap);
	var
	i,j:Integer;
	rowIn,rowOut:pRGBTriple;
	Bmp:TBitmap;
	Width,Height:Integer;
	begin
	Bmp:=TBitmap.Create;
	Bmp.Width := Bitmap.Height;
	Bmp.Height := Bitmap.Width;
	Bmp.PixelFormat := pf24bit;
	Width:=Bitmap.Width-1;
	Height:=Bitmap.Height-1;
	for j := 0 to Height do
	begin
	 rowIn := Bitmap.ScanLine[j];
	 for i := 0 to Width do
	 begin
	 rowOut := Bmp.ScanLine[Width - i];
	 Inc(rowOut,j);
	 rowOut^ := rowIn^;
	 Inc(rowIn);
	 end;
	end;
	Bitmap.Assign(Bmp);
	end;
	//任意角度
	function RotateBitmap(Bitmap:TBitmap;Angle:Integer;BackColor:TColor):TBitmap;
	var
	i,j,iOriginal,jOriginal,CosPoint,SinPoint : integer;
	RowOriginal,RowRotated : pRGBTriple;
	SinTheta,CosTheta : Extended;
	AngleAdd : integer;
	begin
	Result:=TBitmap.Create;
	Result.PixelFormat := pf24bit;
	Result.Canvas.Brush.Color:=BackColor;
	Angle:=Angle Mod 360;
	if Angle<0 then Angle:=360-Abs(Angle);
	if Angle=0 then
	 Result.Assign(Bitmap)
	else if Angle=90 then
	begin
	 Result.Assign(Bitmap);
	 Rotate90(Result);//如果是旋转90度，直接调用上面的代码
	end
	else if (Angle>90) and (Angle<180) then
	begin
	 AngleAdd:=90;
	 Angle:=Angle-AngleAdd;
	end
	else if Angle=180 then
	begin
	 Result.Assign(Bitmap);
	 Rotate180(Result);//如果是旋转180度，直接调用上面的过程
	end
	else if (Angle>180) and (Angle<270) then
	begin
	 AngleAdd:=180;
	 Angle:=Angle-AngleAdd;
	end
	else if Angle=270 then
	begin
	 Result.Assign(Bitmap);
	 Rotate270(Result);//如果是旋转270度，直接调用上面的过程
	end
	else if (Angle>270) and (Angle<360) then
	begin
	 AngleAdd:=270;
	 Angle:=Angle-AngleAdd;
	end
	else
	 AngleAdd:=0;
	if (Angle>0) and (Angle<90) then
	begin
	SinCos((Angle + AngleAdd) * Pi / 180, SinTheta, CosTheta);
	if (SinTheta * CosTheta) < 0 then
	begin
	 Result.Width := Round(Abs(Bitmap.Width * CosTheta - Bitmap.Height * SinTheta));
	 Result.Height := Round(Abs(Bitmap.Width * SinTheta - Bitmap.Height * CosTheta));
	end
	else
	begin
	 Result.Width := Round(Abs(Bitmap.Width * CosTheta + Bitmap.Height * SinTheta));
	 Result.Height := Round(Abs(Bitmap.Width * SinTheta + Bitmap.Height * CosTheta));
	end;
	CosTheta:=Abs(CosTheta);
	SinTheta:=Abs(SinTheta);
	if (AngleAdd=0) or (AngleAdd=180) then
	begin
	 CosPoint:=Round(Bitmap.Height*CosTheta);
	 SinPoint:=Round(Bitmap.Height*SinTheta);
	end
	else
	begin
	 SinPoint:=Round(Bitmap.Width*CosTheta);
	 CosPoint:=Round(Bitmap.Width*SinTheta);
	end;
	for j := 0 to Result.Height-1 do
	begin
	 RowRotated := Result.Scanline[j];
	 for i := 0 to Result.Width-1 do
	 begin
	 Case AngleAdd of
	 0:
	 begin
	 jOriginal := Round((j+1)*CosTheta-(i+1-SinPoint)*SinTheta)-1;
	 iOriginal := Round((i+1)*CosTheta-(CosPoint-j-1)*SinTheta)-1;
	 end;
	 90:
	 begin
	 iOriginal := Round((j+1)*SinTheta-(i+1-SinPoint)*CosTheta)-1;
	 jOriginal := Bitmap.Height-Round((i+1)*SinTheta-(CosPoint-j-1)*CosTheta);
	 end;
	 180:
	 begin
	 jOriginal := Bitmap.Height-Round((j+1)*CosTheta-(i+1-SinPoint)*SinTheta);
	 iOriginal := Bitmap.Width-Round((i+1)*CosTheta-(CosPoint-j-1)*SinTheta);
	 end;
	 270:
	 begin
	 iOriginal := Bitmap.Width-Round((j+1)*SinTheta-(i+1-SinPoint)*CosTheta);
	 jOriginal := Round((i+1)*SinTheta-(CosPoint-j-1)*CosTheta)-1;
	 end;
	 end;
	 if (iOriginal >= 0) and (iOriginal <= Bitmap.Width-1)and
	 (jOriginal >= 0) and (jOriginal <= Bitmap.Height-1)
	 then
	 begin
	 RowOriginal := Bitmap.Scanline[jOriginal];
	 Inc(RowOriginal,iOriginal);
	 RowRotated^ := RowOriginal^;
	 Inc(RowRotated);
	 end
	 else
	 begin
	 Inc(RowRotated);
	 end;
	 end;
	end;
	end;
	end;
	//水平翻转
	procedure FlipHorz(const Bitmap:TBitmap);
	var
	i,j:Integer;
	rowIn,rowOut:pRGBTriple;
	Bmp:TBitmap;
	Width,Height:Integer;
	begin
	Bmp:=TBitmap.Create;
	Bmp.Width := Bitmap.Width;
	Bmp.Height := Bitmap.Height;
	Bmp.PixelFormat := pf24bit;
	Width:=Bitmap.Width-1;
	Height:=Bitmap.Height-1;
	for j := 0 to Height do
	begin
	 rowIn := Bitmap.ScanLine[j];
	 for i := 0 to Width do
	 begin
	 rowOut := Bmp.ScanLine[j];
	 Inc(rowOut,Width - i);
	 rowOut^ := rowIn^;
	 Inc(rowIn);
	 end;
	end;
	Bitmap.Assign(Bmp);
	end;
	//垂直翻转
	procedure FlipVert(const Bitmap:TBitmap);
	var
	i,j:Integer;
	rowIn,rowOut:pRGBTriple;
	Bmp:TBitmap;
	Width,Height:Integer;
	begin
	Bmp:=TBitmap.Create;
	Bmp.Width := Bitmap.Height;
	Bmp.Height := Bitmap.Width;
	Bmp.PixelFormat := pf24bit;
	Width:=Bitmap.Width-1;
	Height:=Bitmap.Height-1;
	for j := 0 to Height do
	begin
	 rowIn := Bitmap.ScanLine[j];
	 for i := 0 to Width do
	 begin
	 rowOut := Bmp.ScanLine[Height - j];
	 Inc(rowOut,i);
	 rowOut^ := rowIn^;
	 Inc(rowIn);
	 end;
	end;
	Bitmap.Assign(Bmp);
	end;
	[亮度、对比度、饱和度的调整]
	以下代码用ScanLine配合指针移动实现！
	function Min(a, b: integer): integer;
	begin
	if a < b then
	 result := a
	else
	 result := b;
	end;
	function Max(a, b: integer): integer;
	begin
	if a > b then
	 result := a
	else
	 result := b;
	end;
	//亮度调整
	procedure BrightnessChange(const SrcBmp,DestBmp:TBitmap;ValueChange:integer);
	var
	i, j: integer;
	SrcRGB, DestRGB: pRGBTriple;
	begin
	for i := 0 to SrcBmp.Height - 1 do
	begin
	 SrcRGB := SrcBmp.ScanLine[i];
	 DestRGB := DestBmp.ScanLine[i];
	 for j := 0 to SrcBmp.Width - 1 do
	 begin
	 if ValueChange > 0 then
	 begin
	 DestRGB.rgbtRed := Min(255, SrcRGB.rgbtRed + ValueChange);
	 DestRGB.rgbtGreen := Min(255, SrcRGB.rgbtGreen + ValueChange);
	 DestRGB.rgbtBlue := Min(255, SrcRGB.rgbtBlue + ValueChange);
	 end else begin
	 DestRGB.rgbtRed := Max(0, SrcRGB.rgbtRed + ValueChange);
	 DestRGB.rgbtGreen := Max(0, SrcRGB.rgbtGreen + ValueChange);
	 DestRGB.rgbtBlue := Max(0, SrcRGB.rgbtBlue + ValueChange);
	 end;
	 Inc(SrcRGB);
	 Inc(DestRGB);
	 end;
	end;
	end;
	//对比度调整
	procedure ContrastChange(const SrcBmp,DestBmp:TBitmap;ValueChange:integer);
	var
	i, j: integer;
	SrcRGB, DestRGB: pRGBTriple;
	begin
	for i := 0 to SrcBmp.Height - 1 do
	begin
	 SrcRGB := SrcBmp.ScanLine[i];
	 DestRGB := DestBmp.ScanLine[i];
	 for j := 0 to SrcBmp.Width - 1 do
	 begin
	 if ValueChange>=0 then
	 begin
	 if SrcRGB.rgbtRed >= 128 then
	 DestRGB.rgbtRed := Min(255, SrcRGB.rgbtRed + ValueChange)
	 else
	 DestRGB.rgbtRed := Max(0, SrcRGB.rgbtRed - ValueChange);
	 if SrcRGB.rgbtGreen >= 128 then
	 DestRGB.rgbtGreen := Min(255, SrcRGB.rgbtGreen + ValueChange)
	 else
	 DestRGB.rgbtGreen := Max(0, SrcRGB.rgbtGreen - ValueChange);
	 if SrcRGB.rgbtBlue >= 128 then
	 DestRGB.rgbtBlue := Min(255, SrcRGB.rgbtBlue + ValueChange)
	 else
	 DestRGB.rgbtBlue := Max(0, SrcRGB.rgbtBlue - ValueChange);
	 end
	 else
	 begin
	 if SrcRGB.rgbtRed >= 128 then
	 DestRGB.rgbtRed := Max(128, SrcRGB.rgbtRed + ValueChange)
	 else
	 DestRGB.rgbtRed := Min(128, SrcRGB.rgbtRed - ValueChange);
	 if SrcRGB.rgbtGreen >= 128 then
	 DestRGB.rgbtGreen := Max(128, SrcRGB.rgbtGreen + ValueChange)
	 else
	 DestRGB.rgbtGreen := Min(128, SrcRGB.rgbtGreen - ValueChange);
	 if SrcRGB.rgbtBlue >= 128 then
	 DestRGB.rgbtBlue := Max(128, SrcRGB.rgbtBlue + ValueChange)
	 else
	 DestRGB.rgbtBlue := Min(128, SrcRGB.rgbtBlue - ValueChange);
	 end;
	 Inc(SrcRGB);
	 Inc(DestRGB);
	 end;
	end;
	end;
	//饱和度调整
	procedure SaturationChange(const SrcBmp,DestBmp:TBitmap;ValueChange:integer);
	var
	Grays: array[0..767] of Integer;
	Alpha: array[0..255] of Word;
	Gray, x, y: Integer;
	SrcRGB,DestRGB: pRGBTriple;
	i: Byte;
	begin
	ValueChange:=ValueChange+255;
	for i := 0 to 255 do
	Alpha[i] := (i * ValueChange) Shr 8;
	x := 0;
	for i := 0 to 255 do
	begin
	Gray := i - Alpha[i];
	Grays[x] := Gray;
	Inc(x);
	Grays[x] := Gray;
	Inc(x);
	Grays[x] := Gray;
	Inc(x);
	end;
	for y := 0 to SrcBmp.Height - 1 do
	begin
	SrcRGB := SrcBmp.ScanLine[Y];
	DestRGB := DestBmp.ScanLine[Y];
	for x := 0 to SrcBmp.Width - 1 do
	begin
	 Gray := Grays[SrcRGB.rgbtRed + SrcRGB.rgbtGreen + SrcRGB.rgbtBlue];
	 if Gray + Alpha[SrcRGB.rgbtRed]>0 then
	 DestRGB.rgbtRed := Min(255,Gray + Alpha[SrcRGB.rgbtRed])
	 else
	 DestRGB.rgbtRed := 0;
	 if Gray + Alpha[SrcRGB.rgbtGreen]>0 then
	 DestRGB.rgbtGreen := Min(255,Gray + Alpha[SrcRGB.rgbtGreen])
	 else
	 DestRGB.rgbtGreen := 0;
	 if Gray + Alpha[SrcRGB.rgbtBlue]>0 then
	 DestRGB.rgbtBlue := Min(255,Gray + Alpha[SrcRGB.rgbtBlue])
	 else
	 DestRGB.rgbtBlue := 0;
	 Inc(SrcRGB);
	 Inc(DestRGB);
	end;
	end;
	end;
	//RGB调整
	procedure RGBChange(SrcBmp,DestBmp:TBitmap;RedChange,GreenChange,BlueChange:integer);
	var
	SrcRGB, DestRGB: pRGBTriple;
	i,j:integer;
	begin
	for i := 0 to SrcBmp.Height- 1 do
	begin
	 SrcRGB := SrcBmp.ScanLine[i];
	 DestRGB :=DestBmp.ScanLine[i];
	 for j := 0 to SrcBmp.Width - 1 do
	 begin
	 if RedChange> 0 then
	 DestRGB.rgbtRed := Min(255, SrcRGB.rgbtRed + RedChange)
	 else
	 DestRGB.rgbtRed := Max(0, SrcRGB.rgbtRed + RedChange);
	 if GreenChange> 0 then
	 DestRGB.rgbtGreen := Min(255, SrcRGB.rgbtGreen + GreenChange)
	 else
	 DestRGB.rgbtGreen := Max(0, SrcRGB.rgbtGreen + GreenChange);
	 if BlueChange> 0 then
	 DestRGB.rgbtBlue := Min(255, SrcRGB.rgbtBlue + BlueChange)
	 else
	 DestRGB.rgbtBlue := Max(0, SrcRGB.rgbtBlue + BlueChange);
	 Inc(SrcRGB);
	 Inc(DestRGB);
	 end;
	end;
	end;
	[颜色调整]
	//RGB<=>BGR
	procedure RGB2BGR(const Bitmap:TBitmap);
	var
	X: Integer;
	Y: Integer;
	PRGB: pRGBTriple;
	Color: Byte;
	begin
	for Y := 0 to (Bitmap.Height - 1) do
	begin
	 for X := 0 to (Bitmap.Width - 1) do
	 begin
	 Color := PRGB^.rgbtRed;
	 PRGB^.rgbtRed := PRGB^.rgbtBlue;
	 PRGB^.rgbtBlue := Color;
	 Inc(PRGB);
	 end;
	 end
	end;
	end;
	//灰度化(加权)
	procedure Grayscale(const Bitmap:TBitmap);
	var
	X: Integer;
	Y: Integer;
	PRGB: pRGBTriple;
	Gray: Byte;
	begin
	for Y := 0 to (Bitmap.Height - 1) do
	begin
	 PRGB := Bitmap.ScanLine[Y];
	 for X := 0 to (Bitmap.Width - 1) do
	 begin
	 Gray := (77 * Red + 151 * Green + 28 * Blue) shr 8;
	 PRGB^.rgbtRed:=Gray;
	 PRGB^.rgbtGreen:=Gray;
	 PRGB^.rgbtBlue:=Gray;
	 Inc(PRGB);
	 end;
	end;
	end;
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