比较图片使用vb.net

imgsrc=]可以帮助你
chieto

感谢您的答复。。但什么算法IM要使用NBSP
伊万・罗德里格斯:这是一种模糊的，但在本质上，你需要实例化两个System.Drawing.Bitmap对象，比较他们的像素{？ BR}您可能会发现，在AForge.NET库的东西，可以帮助您的具体情况。

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伊万・罗德里格斯・
{A}
{A2}

退房下面的代码:codeprelang="vb"spanclass="code-keyword"Private/spanspanclass="code-keyword"Sub/spanbtnCheck_Click(spanclass="code-keyword"ByVal/spansenderspanclass="code-keyword"As/spanSystem.spanclass="code-keyword"Object/span,_spanclass="code-keyword"ByVal/spanespanclass="code-keyword"As/spanSystem.EventArgs)spanclass="code-keyword"Handles/spanbtnGo.Clickspanclass="code-keyword"Me/span.Cursor=Cursors.WaitCursorApplication.DoEvents() spanclass="code-comment"'/spanspanclass="code-comment"Getthethreshold./spanspanclass="code-keyword"Dim/spanthresholdspanclass="code-keyword"As/spanspanclass="code-keyword"Integer/span=_spanclass="code-keyword"Integer/span.Parse(txtThreshold.Text) spanclass="code-comment"'/spanspanclass="code-comment"Loadtheimages./spanspanclass="code-keyword"Dim/spanbmp1spanclass="code-keyword"As/spanBitmap=Image.FromFile(txtFile1.Text)spanclass="code-keyword"Dim/spanbmp2spanclass="code-keyword"As/spanBitmap=Image.FromFile(txtFile2.Text) spanclass="code-comment"'/spanspanclass="code-comment"Makeadifferenceimage./spanspanclass="code-keyword"Dim/spanwidspanclass="code-keyword"As/spanspanclass="code-keyword"Integer/span=Math.Min(bmp1.Width,bmp2.Width)spanclass="code-keyword"Dim/spanhgtspanclass="code-keyword"As/spanspanclass="code-keyword"Integer/span=Math.Min(bmp1.Height,bmp2.Height)spanclass="code-keyword"Dim/spanbmp3spanclass="code-keyword"As/spanspanclass="code-keyword"New/spanBitmap(wid,hgt) spanclass="code-comment"'/spanspanclass="code-comment"Createthedifferenceimage./spanspanclass="code-keyword"Dim/spanare_identicalspanclass="code-keyword"As/spanspanclass="code-keyword"Boolean/span=spanclass="code-keyword"True/spanspanclass="code-keyword"Dim/spanr1,g1,b1,r2,g2,b2,r3,g3,b3spanclass="code-keyword"As/spanspanclass="code-keyword"Integer/spanspanclass="code-keyword"Dim/spancolor1,color2spanclass="code-keyword"As/spanColorspanclass="code-keyword"Dim/spaneq_colorspanclass="code-keyword"As/spanColor=Color.Whitespanclass="code-keyword"Dim/spanne_colorspanclass="code-keyword"As/spanColor=Color.Redspanclass="code-keyword"Dim/spandr,dg,db,diffspanclass="code-keyword"As/spanspanclass="code-keyword"Integer/spanspanclass="code-keyword"For/spanxspanclass="code-keyword"As/spanspanclass="code-keyword"Integer/span=spanclass="code-digit"0/spanspanclass="code-keyword"To/spanwid-spanclass="code-digit"1/spanspanclass="code-keyword"For/spanyspanclass="code-keyword"As/spanspanclass="code-keyword"Integer/span=spanclass="code-digit"0/spanspanclass="code-keyword"To/spanhgt-spanclass="code-digit"1/spancolor1=bmp1.GetPixel(x,y)color2=bmp2.GetPixel(x,y)dr=spanclass="code-keyword"CInt/span(color1.R)-color2.Rdg=spanclass="code-keyword"CInt/span(color1.G)-color2.Gdb=spanclass="code-keyword"CInt/span(color1.B)-color2.Bdiff=dr*dr+dg*dg+db*dbspanclass="code-keyword"If/spandiff<=thresholdspanclass="code-keyword"Then/spanbmp3.SetPixel(x,y,eq_color)spanclass="code-keyword"Else/spanbmp3.SetPixel(x,y,ne_color)are_identical=spanclass="code-keyword"False/spanspanclass="code-keyword"End/spanspanclass="code-keyword"If/spanspanclass="code-keyword"Next/spanyspanclass="code-keyword"Next/spanx spanclass="code-comment"'/spanspanclass="code-comment"Displaytheresult./spanpicResult.Image=bmp3 spanclass="code-keyword"Me/span.Cursor=Cursors.spanclass="code-keyword"Default/spanspanclass="code-keyword"If/span(bmp1.Width<>bmp2.Width)spanclass="code-keyword"OrElse/span(bmp1.Height<>_bmp2.Height)spanclass="code-keyword"Then/spanare_identical=spanclass="code-keyword"False/spanspanclass="code-keyword"If/spanare_identicalspanclass="code-keyword"Then/spanMessageBox.Show(spanclass="code-string""/spanspanclass="code-string"Theimagesareidentical"/span)spanclass="code-keyword"Else/spanMessageBox.Show(spanclass="code-string""/spanspanclass="code-string"Theimagesaredifferent"/span)spanclass="code-keyword"End/spanspanclass="code-keyword"If/span bmp1.Dispose()bmp2.Dispose()spanclass="code-keyword"End/spanspanclass="code-keyword"Sub/span/pre/code我希望它会帮助你