[Insight-users] add two images

[john smith]

Do you know if there is a good example of itkLabelOverlayImageFilter? Also,
I am using ITK v3.2. Is itkLabelOverlayImageFilter suitable for this
version?Because I can't find it in the libraries.

Thanks

2011/6/29 robert tamburo <robert.tamburo at gmail.com>

> I suggest using itkLabelOverlayImageFilter .  It applies a color map to a
> label image (segmentation image) and overlays it on the original image with
> the ability to adjust opacity of the overlay.
>
>
> On Wed, Jun 29, 2011 at 10:29 AM, john smith <mkitkinsightuser at gmail.com>wrote:
>
>> The problem is that the segment of my original image is white. So If this
>> part after the segmentation is also white, then the result of AddImageFilter
>> will not be good, concerning visualization. Also, If this part is black
>> after segmentation then I will not have any change using AddImageFilter.
>> What you suggest to do in this case?
>>
>> Thanks for your response
>>
>>
>> 2011/6/29 robert tamburo <robert.tamburo at gmail.com>
>>
>>> If your segmented object is black and black means zero-valued, then
>>> you're adding zero to the original image.
>>>
>>> On Wed, Jun 29, 2011 at 10:14 AM, john smith <mkitkinsightuser at gmail.com
>>> > wrote:
>>>
>>>> Hello,
>>>>
>>>> I want to read two png images (one is already saved in memory and the
>>>> other I get it from a dialog box of Qt).The first is the result of the
>>>> segmentation (black for the segmented object) and the second is the original
>>>> image. I use AddImage filter as it can be seen from the foloowing code but I
>>>> do not get the right result. Could somebody tell me what I am doing wrong?
>>>> Is it correct to use two readers?
>>>>
>>>>  ReaderType::Pointer reader1 = ReaderType::New();
>>>>   ReaderType::Pointer reader2 = ReaderType::New();
>>>>
>>>>   reader1->SetFileName(fileName.toStdString());
>>>>   reader2->SetFileName("result.png");
>>>>
>>>>   reader1->Update();
>>>>   reader2->Update();
>>>>   typedef itk::AddImageFilter<
>>>>             InternalImageType,
>>>>             InternalImageType,
>>>>             OutputImageType > AddFilterType;
>>>>
>>>>     AddFilterType::Pointer addFilter = AddFilterType::New();
>>>>     addFilter->SetInput1( reader1->GetOutput() );
>>>>     addFilter->SetInput2( reader2->GetOutput() );
>>>>
>>>>     try
>>>>     {
>>>>     addFilter->Update();
>>>>     }
>>>>     catch( itk::ExceptionObject & err )
>>>>     {
>>>>     std::cout << "ExceptionObject caught !" << std::endl;
>>>>     std::cout << err << std::endl;
>>>>     }
>>>>
>>>>     WriterType::Pointer writer = WriterType::New();
>>>>     writer->SetInput( addFilter->GetOutput() );
>>>>     writer->SetFileName( "addImage.png" );
>>>>     writer->Update();
>>>>
>>>>
>>>> 2011/6/29 robert tamburo <robert.tamburo at gmail.com>
>>>>
>>>>> itkAddImageFilter
>>>>>
>>>>> Alternatively, itkLabelOverlayImageFilter will allow you to overlay
>>>>> your segmentation on the original image.
>>>>>
>>>>> On Wed, Jun 29, 2011 at 3:17 AM, john smith <
>>>>> mkitkinsightuser at gmail.com> wrote:
>>>>>
>>>>>> Hello to all,
>>>>>>
>>>>>> I am working in an application in order to segment an object. Well, I
>>>>>> have managed to get the segmented contour of my object. But now I want to
>>>>>> display this result over my initial image. Do you know how I could add two
>>>>>> images?
>>>>>>
>>>>>> Thanks in advance
>>>>>>
>>>>>>
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>>>>>>
>>>>>
>>>>
>>>
>>
>
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