[Insight-users] add two images

[robert tamburo]

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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