24、32位圖位數(shù)的相互轉(zhuǎn)換

1、利達(dá)光電股份有限公司位圖位數(shù)的轉(zhuǎn)換用VC#2008實(shí)現(xiàn)彭軍河南省南陽(yáng)市工業(yè)南路508號(hào)2010年4月23曰利達(dá)光電股份有限公司|彭軍32010年4月23曰吟Bitmapconverter【口I迭擇WIPES片目錄：E照片樣品囲片轉(zhuǎn)換后為：32位保存目錄：E:開(kāi)瞬換|退出程序|彭軍出品老屬精品利達(dá)光電股份有限公司|彭軍#2010年4月23曰SolutionExplorer-BitmapConverter¥X隠l滲屋丨國(guó)打Solution'BitmapConverter1(1project)S-國(guó)BitmapConverter旦Properties!型References曹Bit

2、maplnfo.es白匡|Forml.cs也Forml.Designer.es崔|Forml.resx崔|NeverBitmap.cs曹Program.csForml.cs的全部程序：usingSystem;usingSystentCollectionsGeneric;usingSystern.ComponentModel:usingSystentData;usingSystentDrawing;usingSysteniLinq;usingSystentText;usingSystentWindows.Forms;usingSystentIO;namespaceBitmapConverterp

3、ublicpartialclassForml:FormFileinfofiles=null:publicForml()InitializeComponent();privatevoidForm1_Load(objectsender,EventArgse)/設(shè)置窗口的大小不可變this.MinimumSize=this.Size;this.MaximumSize=this.Size;設(shè)置默認(rèn)轉(zhuǎn)換為24位位圖cbxBitCount.Selectedlndex=1:/列出當(dāng)前目錄下位圖文件privatevoidListBnFilesOtryDirectorylnfodi=newDirectoryln

4、fo(tbxDirectory.TextTrimO);files=di.GetFiles("水.bmp");foreach(Fileinfofinfiles)ListViewItemlvi=listViewl.ItemsAdd(fFullName);Bitmapinfobi=newBitmapInfo(f.FullName):lvi.SubItemsAdd(biGetBitCount()ToStringO);lvi.SubItemsAdd(biGetHeight()ToString();lvi.SubItems.Add(bi.GetWidth().ToStringO)；ca

5、tch(Exceptione)MessageBox.Show(e.Message,"錯(cuò)誤")；return;privatevoidtbxDirectory_Click(objectsender,EventArgse)/選擇需轉(zhuǎn)換的位圖文件所在的目錄FolderBrowserDialogfbd=newFolderBrowserDialog();if(fbd.ShoWialogO!=DialogResult.OK)return;tbxDirectory.Text二fbd.SelectedPath;1istViewl.Items.Clear();清空ListView中的內(nèi)容pro

6、gressBarl.Value=0;/還原進(jìn)度條ListBupFilesO;privatevoidbtnExitJC1ick(objectsender,EventArgse)this.Close();/從路徑中分割出文件名privatestringGetFileName(stringpath)stringparts=path.Split('');returnpartsparts.Length-1:privatevoidbtnStartjClick(objectsender,EventArgse)if(cbxBitCount.Text.Trim()="”)Message

7、Box.Show(”請(qǐng)選擇轉(zhuǎn)換后的位圖位數(shù)!"，"錯(cuò)誤”)；return;if(tbxDirectory.Text.Trim()="”)MessageBox.Show(”請(qǐng)選擇位圖所在的LI錄!"，"錯(cuò)誤")；return;if(files=null|files.Length=0)MessageBox.Show(”當(dāng)前目錄下沒(méi)有位圖!"，"錯(cuò)誤")；return;if(tbxDirectory.TextTrim()=tbxSaveDirTextTrim()MessageBox.ShowC兩個(gè)H錄不能相同!

8、”，"錯(cuò)誤”)；return;progressBar1.Value=0;progressBar1.Minimum=0;progressBar1.Maximum=files.Length;for(inti二0;ifiles.Length;i+)ListViewItemlvi=listViewl.ltemsi;UIntl6choose=ConvertToUIntl6(cbxBitCountTextTrim()ToString();stringsavepath二tbxSaveDir.TextTrim()+""+GetFileName(lvi.SubItems0TextT

9、rim();NeverBitmapnb=newNeverBitmap(lvi.SubItems0TextTrim(),savepath);if(lvi.SubItemslText=cbxBitCount.Text)progressBar1.Value+;lvi.Sublterns0.Text+二"無(wú)需轉(zhuǎn)換"；continue;elseif(lvi.SubItems1.Text="8")switch(choose)case24:nb.Bit8To24();break;case32:nb.Bit8To32();break;elseif(lvi.Subitem

10、s1.Text="24")switch(choose)case8：nb.Bit24To8();break;case32：nb.Bit24To32();break;elseif(lvi.Subitems1.Text="32")switch(choose)case8：nb.Bit32To8();break;case24:nb.Bit32To24();break;elsecontinue;progressBar1.Value+;lvi.Subitems0.Text+="完成"；privatevoidtbxSaveDir_Click(obje

11、ctsender,EventArgse)設(shè)置保存目錄，不能和原目錄一致FolderBrowserDialogfbd=newFolderBrowserDialog();if(fbd.Shovi)ialog()!=DialogResult0K)return;tbxSaveDirText二fbd.SelectedPsth;Bitmaplnfo.es的全部程序：usingSystem;usingSystentCollectionsGeneric;usingSystentLinq:usingSystem.Text;usingSystem.10;usingSystentDrawing;usingSyste

12、ntDrawing.Imaging;namespaceBitmapConverterclassBitmapInfoBitmapbmp=null;publicBitmaplnfo(stringpath)bw=newBitmap(path);publicintGetWidthO/返回位圖寬度if(bnp=null)returnT;returnbmp.Width;publicintGetHeight()/返回位圖高度if(bnp=null)returnT;returnbmp.Height;publicintGetBitCount()/返回位圖位數(shù)if(bnp.PixelFormat=PixelFor

13、mat.Format24bppRgb)return24;elseif(bmp.PixelFormat=PixelFormat.Format32bppRgb|bnp.PixelFormat=PixelFormat.Format32bppPArgb|bnp.PixelFormat=PixelFormat.Format32bppArgb)return32;elseif(bmp.PixelFormat=PixelFormat.Format8bpplndexed)return8;elsereturnT;NeverBitmap.es的全部程序:usingSystem;usingSystentCollect

14、ionsGeneric;usingSysteniLinq;usingSystentText;usingSystentDrawing.Imaging;usingSystentDrawing;usingSystent10;利達(dá)光電股份有限公司|彭軍112010年4月23曰利達(dá)光電股份有限公司|彭軍#2010年4月23曰namespaceBitmapConverterclassNeverBitmapstructBitmapFileHeader/位圖文件頭publicUIntl6publicUInt32bfType;bfSize:publicUIntl6publicpublicUIntl6UInt32

15、bfReservedl;bfReserved2;bfOffBits;structBitmapInfoHeader/位圖信息頭publicUInt32biSize:publicUInt32biWidth;publicUInt32biHeight;publicUIntl6biPlanes:publicUIntl6biBitCount;publicUInt32biCompression;publicUInt32biSizelmage;publicUInt32biXPelsPerMeter;publicUInt32biYPelsPerMeter;publicUInt32biClrUsed;public

16、UInt32biClrlnportant;structRGBQUAD/位圖調(diào)色板項(xiàng)publicbytergbBlue;publicbytergbGreen:publicbytergbRed:publicbytergbReserved;利達(dá)光電股份有限公司|彭軍132010年4月23曰privatestringf訂epath=null;/需打開(kāi)的位圖的路徑privatestringsavepath二null;/轉(zhuǎn)換后位圖的保存路徑privateBitmapFi1eHeaderbfh;privateBitmapInfoHeaderbih:publicNeverBitmap(stringopenpa

17、th,stringsavepath)thisfilepath=openDath;this,savepath=savepath;privatevoidSaveSBits(Bitmapbmp)/為位圖文件頭賦值bfh.bfOffBits=107&bfh.bfReservedl=0;bfh.bfReserved2=0;bfh.bfSize=14;bfh.bfType=19778;為位圖信息頭賦值bihbiBitCount二8:bih.biClrlnportant=0;bih.biClrUsed=0;bih.biCompression=0:bih.biHeight=(uint)bn.Heigh

18、t;bih.biPlanes=1;bih.biSize=40;bih.biSizeImage=(uint)(bnp.Height*(bmp.Width*8+31)/32*4);bih.biWidth二(uint)bmp.Width:bih.biXPelsPerMeter二0;bih.biYPelsPerMeter=0;/構(gòu)造256色的調(diào)色板，非索引圖R(SQUADpal二newRGBQUAD256;for(inti二0;i256;i卄)palirgbBlue=(byte)i;palirgbGreen=(byte)i;palirgbRed=(byte)i;palirgbReserved=0;Fi

19、lelnfof=newFileinfo(savepath);using(BinaryV/riterbw=newBinaryWriter(f.OpenWrite()寫(xiě)入文件頭bw.Vftrite(bfhbfType);bw.Write(bfh.bfSize);bw.Vftrite(bfhbfReservedl);bw.Vftrite(bfhbfReserved2);bw.Write(bfh.bfOffBits);寫(xiě)入信息頭bw.Write(bih.biSize);bw.Write(bih.biWidth);bw.Write(bih.biHeight);bw.Vftrite(bih.biPlane

20、s);bw.毗ite(bihbiBitCount);bw.毗ite(bih.biCompression);bw.毗ite(bihbiSizeimage);bw.Write(bih.biXPelsPerMeter);bw.Write(bih.biYPelsPerMeter);bw.Write(bih.biClrUsed);bw.Vftrite(bih.biClrImportant);寫(xiě)入調(diào)色板for(inti=0;i<256;i+)bw.Write(palirgbBlue);bw.V/rite(palirgbGreen);bw.V/rite(palirgbRed);bw.Write(pal

21、irgbReserved);/位圖上下翻轉(zhuǎn)bnDRototeFlip(RototeFlipTypeRototel80FlipX);BitmapDatsdata=bmp.LockBits(newRectangle©0,bnpWidt扎bmp.Height),ImageLockMode.Readonly,PixelFormat.Format8bppIndexed);unsafebyte*ptr=(byte*)data.ScanO.ToPointer()J/L圖的指針byteline=newbytedata.Stride:/保存位圖的一行for(inti=0;i<data.Strid

22、e:i+)linei=0;for(inti=0;i<bnp.Height;i+)for(intj二0;jbmp.Width;j+)linefj=*ptr+;ptr+二data.Stride-bn?).Width;/Jr針跳過(guò)對(duì)齊的字節(jié)bw.Write(line,0,line.Length):寫(xiě)入位圖的一行bw.Close();bnpUnlockBits(dato);publicvoidBit8To24()Bitmapbmp8=newBitmap(filepath);BitmapDatsdata8=bmp8LockBits(newRectangle(0，0,bmp8Width，bnp8.H

23、eight),ImageLockModeReadonly,PixelFormatFormat8bppIndexed);Bitmapbmp24=newBitmap(bmp8.Width，bnp8.Height,PixelFormat.Format24bppRgb);BitmapDatsdata24=bmp24.LockBits(newRectangle©0，利達(dá)光電股份有限公司|彭軍172010年4月23曰位圖彳盤(pán)的超bnp24.Width,bn?)24.Height),ImageLockMode.WriteOnly,PixelFormat.Format24bppRgb);unsafe

24、byte*ptr8=(byte*)data8.ScanO.ToPointer();byte*ptr24=(byte*)data24.ScanO.ToPointerO;for(inti=0;i<bropS.Height;i+)for(intj=0;j<b叩8.Width;j+)/用8位位圖的灰度值填充24位位圖的R、G、B值*ptr24+二切tr8;*ptr24+二切tr8;*ptr24+二切tr8+;ptr8+二data8.Stride-bn?)8.Width;/跳過(guò)對(duì)齊字節(jié)ptr24+二data24.Stride-bn?)8.Width*3;/跳過(guò)對(duì)齊字節(jié)bw8UnlockBit

25、s(data8);bw24.UnlockBits(data24);bw24.Save(savepath);publicvoidBit8To32()Bitmapbmp8=newBitmap(filepath);BitmapDatadata8=bnp8LockBits(newRectangle(0,0,bmp8Width，bnp8.Height),ImageLockModeReadonly,PixelFormatFormat8bppIndexed);Bitmapbmp32=newBitmap(bmp8.Width，bnp8.Height，PixelFormat.Format32bppArgb);B

26、itmapDatadata32=bmp32.LockBits(newRectangle©0，bnp32.Width,bn?)32Height),ImageLockModeWriteOnly,PixelFormat.Format32bppArgb);利達(dá)光電股份有限公司|彭軍192010年4月23曰unsafebyte*ptr8=(byte*)data8Scan0.ToPointer();byte*ptr32=(byte*)data32.ScanO.ToPointerO;for(inti=0;i<bn)8.Height;i+)for(intj=0;j<b叩&Widt

27、h:j+)/用8位位圖的灰度值，填充32位位圖的RGB值，透明度為100%*ptr32+二切比8;*ptr32+二切比8;*ptr32+=切tr8+;*ptr32+=255;ptr8udata8Stride一bn?)8Width;ptr32+二data32.Stride-bmp8.Width*4;bw8UnlockBits(data8);bw32UnlockBits(dats32);bw32Save(savepath);publicvoidBit24To8()Bitmapbmp24=newBitmap(filepath);BitmapDatsdata24=bmp24LockBits(newRe

28、ctangle©0，bnp24.Width,bn?)24.Height),ImageLockModeReadonly,PixelFormat.Format24bppRgb);Bitmapbmp8=newBitmap(bnp24.Width，bmp24.Height,PixelFormat.Format8bppIndexed);BitmapDatsdata8=bmp8LockBits(newRectangle(0，0,bmp8.Width，bn8.Height),ImageLockModeWriteOnly,PixelFormatFormat8bppIndexed);unsafebyt

29、e*ptr24=(byte*)data24.ScanO.ToPointer();byte*ptr8=(byte*)data8.ScanO.ToPointer();for(inti=0;i<brop8.Height;i+)for(intj=0;j<bw8.Width:j+)/用RGB值的均值作為8位位圖的灰度值*ptr8+=(byte)(int)(*ptr24+)+(int)(>：<ptr24+)+(int)(切tr24卄)/3);ptr24+二data24.Stride-bmp8.Width*3;ptr8udata8.Stride一bn?8.Width;bw8Unloc

30、kBits(data8);bw24.UnlockBits(data24);Save8Bits(bmp8);publicvoidBit32To8()Bitmapbmp32=newBitmap(filepath);BitmapDatodata32=bmp32.LockBits(newRectangle©0，bnp32.Width,bn>32Height),ImageLockModeReadonly,PixelFormatFormat32bppArgb);Bitmapbmp8=newBitmap(bnp32Width，bmp32.Height，PixelFormatFormat8bp

31、pIndexed);BitmapDatodata8=bnp8LockBits(newRectangle(0,0,bmp8.Width，bnp8.Height),ImageLockModeWriteOnly，PixelFormatFormat8bppIndexed);unsafebyte*ptr32=(byte*)data32.ScanO.ToPointer();byte*ptr8=(byte*)data8Scan0ToPointer();for(inti=0;i<bropS.Height;i+)for(intj=0;j<bw8.Width:j+)/用32位位圖的RC®值的

32、均值作為8位位圖的灰度值*ptr8+二(byte)(int)Gptr32卄)+(int)(即比32+)+(int)(*ptr32+)/3);ptr32卄;跳過(guò)透明度字節(jié)ptr32+=data32.Stride-bmp32Width*4;ptr8udata8Stride一bn?)8.Width;bw8UnlockBits(data8);bw32UnlockBits(dato32);Save8Bits(bmp8);publicvoidBit32To24()Bitmapbmp32=newBitmap(filepath);BitmapDatodata32=bmp32.LockBits(newRecta

33、ngle©0，bnp32.Width,bn?)32Height),ImageLockMode.Readonly,PixelFormat.Format32bppArgb);Bitmapbmp24=newBitmap(bmp32.Width,bn32.Height，PixelFormat.Format24bppRgb);BitmapDatadata24=bmp24.LockBits(newRectangle(0,0，bnp24.Width,bn?)24.Height),ImageLockMode.WriteOnly,PixelFormat.Format24bppRgb);unsafebyte*ptr32=(byte*)data32.ScanO.ToPointer();byte*ptr24=(byte*)data24ScanO.ToPointer();for(in