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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Great idea David. I will try your idea.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks a lot,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Yang<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span lang=ZH-CN style='font-size:10.0pt;font-family:SimSun'>发件人</span></b><b><span style='font-size:10.0pt;font-family:SimSun'>:</span></b><span style='font-size:10.0pt;font-family:SimSun'> David Doria [mailto:daviddoria@gmail.com] <br><b><span lang=ZH-CN>发送时间</span>:</b> 2011</span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>년</span><span style='font-size:10.0pt;font-family:SimSun'> 2</span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>월</span><span style='font-size:10.0pt;font-family:SimSun'> 17</span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>일</span><span lang=ZH-CN style='font-size:10.0pt;font-family:SimSun'> </span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>목요일</span><span lang=ZH-CN style='font-size:10.0pt;font-family:SimSun'> </span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>오후</span><span style='font-size:10.0pt;font-family:SimSun'> 9:56<br><b><span lang=ZH-CN>收件人</span>:</b> Xiaopeng Yang<br><b><span lang=ZH-CN>抄送</span>:</b> vtk; insight-users@itk.org<br><b><span lang=ZH-CN>主题</span>:</b> Re: [Insight-users] Overlay segmented binary image on vtkImageViewer2<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>On Thu, Feb 17, 2011 at 7:40 AM, Xiaopeng Yang <<a href="mailto:yxp233@postech.ac.kr">yxp233@postech.ac.kr</a>> wrote:<br>><br>> Wow, that’s a great project! But it is hard for me to understand it. I applied vtkImageBlend to combine the original and mask images. That’s a pretty easy way for me. But I cannot change the mask image color. Do you have any idea to change the mask image color?<br>><br>> <br>><br>> <br>><br>> vtkSmartPointer<vtkLookupTable> table1 = vtkSmartPointer<vtkLookupTable>::New();<br>><br>> table1->SetRange(100, 150);<br>><br>> table1->SetValueRange(0.0, 1.0);<br>><br>> table1->SetSaturationRange(0.0, 0.0);<br>><br>> table1->SetRampToLinear();<br>><br>> table1->Build();<br>><br>> <br>><br>> vtkSmartPointer<vtkImageMapToColors> color1 = vtkSmartPointer<vtkImageMapToColors>::New();<br>><br>> color1->SetLookupTable(table1);<br>><br>> color1->SetInput(Original->GetOutput());//original image<br>><br>> color1->Update();<br>><br>> <br>><br>> vtkSmartPointer<vtkLookupTable> table2 = vtkSmartPointer<vtkLookupTable>::New();<br>><br>> table2->SetRange(0, 255);<br>><br>> table2->SetValueRange(0,1);<br>><br>> table2->SetSaturationRange(0.0, 0.0);<br>><br>> table2->SetRampToLinear();<br>><br>> table2->Build();<br>><br>> <br>><br>> vtkSmartPointer<vtkImageMapToColors> color2 = vtkSmartPointer<vtkImageMapToColors>::New();<br>><br>> color2->SetLookupTable(table2);<br>><br>> color2->SetInput(Mask->GetOutput());//mask image<br>><br>> color2->Update();<br>><br>> <br>><br>> vtkSmartPointer<vtkImageBlend> imgBlender =<br>><br>> vtkSmartPointer<vtkImageBlend>::New();<br>><br>> imgBlender->SetOpacity( 0, 1 );<br>><br>> imgBlender->SetOpacity( 1, 0.3 );<br>><br>> <br>><br>> imgBlender->SetInput( 0, color1->GetOutput() );<br>><br>> imgBlender->SetInput( 1, color2->GetOutput() );<br>><br>> <br>><br>> vtkImageViewer2 *imageViewer1 = vtkImageViewer2::New();<br><br>Look at the SetTableValue calls in this example: <a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Images/Transparency">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Images/Transparency</a> <o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'>Also, by using ImageBlend you remove the option (which I always allow) to toggle the mask visibility (well, I suppose you could toggle between the original image and the blended image, but why not just turn on/off the mask?)<o:p></o:p></p></div><div><p class=MsoNormal>David<o:p></o:p></p></div></div></body></html>