第C#驗證兩個QQ頭像相似度的示例代碼利用c#查看出某個其他qq的頭像與自己頭像的相似度，先看效果圖

這里我是將左邊的頭像作為比對的基本圖，我目前做的是一圖比對一圖，因為理解好了一對一，一對多也不難，我們可以得出相似的像素，然后大于多少百分比就是同一圖的改變了，以下是完整代碼

usingNewtonsoft.Json;

usingNewtonsoft.Json.Linq;

usingSystem;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

usingSystem.Data;

usingSystem.Diagnostics;

usingSystem.Drawing;

usingSystem.Drawing.Drawing2D;

usingSystem.Drawing.Imaging;

usingSystem.IO;

usingSystem.Linq;

usingSystem.Net;

usingSystem.Net.Http;

usingSystem.Text;

usingSystem.Threading.Tasks;

usingSystem.Windows.Forms;

namespaceWindowsFormsApp1

publicpartialclassForm1:Form

publicForm1()

InitializeComponent();

publicstaticintwidth;//圖片寬

publicstaticintheight;//圖片高

publicstaticstringmypicurl;//我的圖片地址

publicstaticstringpicurl;//圖片地址

privatevoidForm1_Load(objectsender,EventArgse)

this.MyPicture.SizeMode=PictureBoxSizeMode.StretchImage;

this.MyPicture.BorderStyle=BorderStyle.FixedSingle;

this.OtherPicture.SizeMode=PictureBoxSizeMode.StretchImage;

this.OtherPicture.BorderStyle=BorderStyle.FixedSingle;

this.explain.Text="操作步驟：左邊輸入自己qq號查看顯示，右邊輸入別人qq號，點擊查看，點擊驗證，得出結(jié)果。";

privatevoidbutton2_Click(objectsender,EventArgse)

Stopwatchstopwatch=newStopwatch();

stopwatch.Start();

intcountSame=0;

intcountDifferent=0;

Imageimg=this.MyPicture.Image;

BitmapbitmapSource=newBitmap(img);

//BitmapbitmapSource=BytesToBitmap(ResizeImage(mypicurl));

width=bitmapSource.Width;

height=bitmapSource.Height;

BitmapbitmapTarget=BytesToBitmap(ResizeImage(picurl));

//照片尺寸必須一樣

for(inti=0;ibitmapTarget.Width;i++)

for(intj=0;jbitmapTarget.Height;j++)

if(bitmapSource.GetPixel(i,j).Equals(bitmapTarget.GetPixel(i,j)))

countSame++;

else

countDifferent++;

stopwatch.Stop();

this.result.Text="相同像素個數(shù)："+countSame+"，不同像素個數(shù)："+countDifferent+"用時："+stopwatch.ElapsedMilliseconds+"毫秒";

//byte[]轉(zhuǎn)圖片

publicstaticBitmapBytesToBitmap(byte[]Bytes)

MemoryStreamstream=null;

stream=newMemoryStream(Bytes);

returnnewBitmap((Image)newBitmap(stream));

catch(ArgumentNullExceptionex)

throwex;

catch(ArgumentExceptionex)

throwex;

finally

stream.Close();

///summary

///圖片大小裁剪

////summary

///paramname="filePath"/param

///returns/returns

publicstaticbyte[]ResizeImage(stringfilePath)

WebRequestrequest=(WebRequest)HttpWebRequest.Create(filePath);

WebResponseresponse=request.GetResponse();

using(Streamstream=response.GetResponseStream())

Bitmapbm=(Bitmap)Image.FromStream(stream);

bm=GetThumbnail(bm,height,width);

MemoryStreamms=newMemoryStream();

bm.Save(ms,System.Drawing.Imaging.ImageFormat.Bmp);

byte[]bytes=ms.GetBuffer();//byte[]bytes=ms.ToArray();這兩句都可以，至于區(qū)別么，下面有解釋

ms.Close();

returnbytes;

///summary

///修改圖片的大小

////summary

///paramname="b"/param

///paramname="destHeight"/param

///paramname="destWidth"/param

///returns/returns

publicstaticBitmapGetThumbnail(Bitmapb,intdestHeight,intdestWidth)

System.Drawing.ImageimgSource=b;

System.Drawing.Imaging.ImageFormatthisFormat=imgSource.RawFormat;

intsW=0,sH=0;

//按比例縮放

intsWidth=imgSource.Width;

intsHeight=imgSource.Height;

if(sHeightdestHeight||sWidthdestWidth)

if((sWidth*destHeight)(sHeight*destWidth))

sW=destWidth;

sH=(destWidth*sHeight)/sWidth;

else

sH=destHeight;

sW=(sWidth*destHeight)/sHeight;

else

sW=sWidth;

sH=sHeight;

BitmapoutBmp=newBitmap(destWidth,destHeight);

Graphicsg=Graphics.FromImage(outBmp);

g.Clear(Color.Transparent);

//設(shè)置畫布的描繪質(zhì)量

g.CompositingQuality=CompositingQuality.HighQuality;

g.SmoothingMode=SmoothingMode.HighQuality;

g.InterpolationMode=InterpolationMode.HighQualityBicubic;

g.DrawImage(imgSource,newRectangle((destWidth-sW)/2,(destHeight-sH)/2,sW,sH),0,0,imgSource.Width,imgSource.Height,GraphicsUnit.Pixel);

g.Dispose();

//以下代碼為保存圖片時，設(shè)置壓縮質(zhì)量

EncoderParametersencoderParams=newEncoderParameters();

long[]quality=newlong[1];

quality[0]=100;

EncoderParameterencoderParam=newEncoderParameter(System.Drawing.Imaging.Encoder.Quality,quality);

encoderParams.Param[0]=encoderParam;

imgSource.Dispose();

returnoutBmp;

privatevoidbutton3_Click(objectsender,EventArgse)

if(this.OtherQQ.Text=="")

MessageBox.Show("請輸入qq號！");

return;

HttpClienthttpClient=newHttpClient();

stringurl="/qq/"+this.OtherQQ.Text;

varrsp=httpClient.GetAsync(url).Result;

varstr=rsp.Content.ReadAsStringAsync().Result;

JObjectjo=(JObject)JsonConvert.DeserializeObject(str);

if((string)jo["code"]=="200")

Imagepic=Image.FromStream(WebRequest.Create((string)jo["data"]["avatar"]).GetResponse().GetResponseStream());

this.OtherPicture.Image=pic;

picurl=(string)jo["data"]["avatar"];

else

MessageBox.Show("請輸入正確的qq號！");

privatevoidbutton4_Click(objectsender,EventArgse)

if(this.MyQQ.Text=="")

MessageBox.Show("請輸入qq號！");

return;

HttpClienthttpClient=newHttpClient();

stringurl="/qq/"+this.MyQQ.Text;

varrsp=httpClient.GetAsync(url).Result;

varstr=rsp.Content.ReadAsStringAsync().Result;

JObjectjo=(JObject)JsonConvert.Des