[vtkusers] Real colours in 3D CT image(DICOM)

[Gururajan.R]

Bill

    Again very very kind to you,
    After that also am not getting the realistic color for my image. plz
have a lokk at below code.

  Please suggest me, where exactly have to change.

thank you so much for your kind help

Thanks
guru

            vtkGeometryFilter  geovolumebone = new vtkGeometryFilter();
                geovolumebone.SetInput(polyReader.GetOutput());
                vtkPolyDataMapper  geobonemapper = new vtkPolyDataMapper();
                geobonemapper.SetInput(geovolumebone.GetOutput());
                geobonemapper.ScalarVisibilityOff();
               
                vtkLODActor boneActor = new vtkLODActor();
                boneActor.SetNumberOfCloudPoints(100000);
                boneActor.SetMapper(geobonemapper);
                boneActor.GetProperty().SetColor(0.75,0.75,0.75);
                boneActor.GetProperty().SetOpacity(0.3);
                boneActor.GetProperty().SetDiffuse(0.75);
                boneActor.GetProperty().SetSpecular(0.75);

Bill Lorensen wrote:
> Opacity, Diffuse, and Specular have ranges from 0-1. Some of your
> settings are > 1.0.
>
> Start out just by setting the diffuse color. Leave out all of the
> other settings until you get a decent image. Then you can add specular
> highlights later.
>
> On Sat, Oct 3, 2009 at 9:25 AM, Gururajan.R <gururajan.r at raster.in> wrote:
>   
>> Bill
>> very kind to your reply.
>>
>>
>> i have included that too, to set scalar visibility in off. even i dint get the result, am wondering where i made mistake.
>> if time permits you please have a look on below code
>>
>> Thanks
>> Guru
>>
>>    //for skin and bone Diagram
>>            //For setting Bone Colour
>>                vtkGeometryFilter  geovolumebone = new vtkGeometryFilter();
>>                geovolumebone.SetInput(polyReader.GetOutput());
>>                vtkPolyDataMapper  geobonemapper = new vtkPolyDataMapper();
>>                geobonemapper.SetInput(geovolumebone.GetOutput());
>>                geobonemapper.ScalarVisibilityOff();
>>                //vtkActor boneActor = new vtkActor();
>>                vtkLODActor boneActor = new vtkLODActor();
>>                boneActor.SetNumberOfCloudPoints(100000);
>>                boneActor.SetMapper(geobonemapper);
>>                //boneActor.GetProperty().SetColor(1, 0.4782, 0.2546);
>>                boneActor.GetProperty().SetColor(1, 0, 0);
>>                //boneActor.GetProperty().SetDiffuseColor(1, 1, .9412);
>>                boneActor.GetProperty().SetSpecularPower(100);
>>                boneActor.GetProperty().SetOpacity(1.5);
>>                boneActor.GetProperty().SetDiffuse(1.75);
>>                boneActor.GetProperty().SetSpecular(1.75);
>>                //For setting Bone Colour
>>
>>            //For setting Skin Colour
>>                vtkMarchingCubes skin = new vtkMarchingCubes();
>>                skin.SetInput(dicomreader.GetOutput());
>>                skin.SetValue(0, -300);
>>                skin.ComputeNormalsOn();
>> //
>>                vtkGeometryFilter geovolumeSkin = new vtkGeometryFilter();
>>                geovolumeSkin.SetInput(contour.GetOutput());
>> //
>>                vtkPolyDataMapper skinmapper = new vtkPolyDataMapper();
>>                skinmapper.SetInput(geovolumeSkin.GetOutput());
>>                skinmapper.ScalarVisibilityOff();
>>
>>
>>                vtkLODActor actorskin = new vtkLODActor();
>>                actorskin.SetNumberOfCloudPoints(100000);
>>                actorskin.SetMapper(skinmapper);
>>                //actorskin.GetProperty().SetColor(1, 0.547237, 0.319073);
>>                actorskin.GetProperty().SetColor(0.94,0.58, 0.17);
>>                actorskin.GetProperty().SetSpecularPower(100);
>>                actorskin.GetProperty().SetOpacity( 3.3 );
>>
>> Bill Lorensen wrote:
>>     
>>> Try adding:
>>> geobonemapper->ScalarVisibilityOff();
>>>
>>> If scalar data exists for cells or points, the mapper will use that
>>> data to color the actor. With ScalarVisibilityOff(), the mapper will
>>> use the color in the property.
>>>
>>> On Sat, Oct 3, 2009 at 1:34 AM, Gururajan.R <gururajan.r at raster.in> wrote:
>>>
>>>       
>>>> Hi all,
>>>>    As am a new in VTK. Please guide me how to bring real colors like
>>>> (bone, blood & vessles) in 3d image, iam reading dicom series and
>>>> converted into 3d format. using vtkLODActor, am colouring the image but
>>>> its not a real color and  the whole image is in one color only.
>>>>
>>>> i want real color to be applied to the relevant parts in the 3d image .
>>>>
>>>> Please any one help me in this., i would be very thankful for your kind
>>>> help.
>>>>
>>>>
>>>> Regards
>>>> Guru
>>>>
>>>>    vtkLODActor boneActor = new vtkLODActor();
>>>>                boneActor.SetNumberOfCloudPoints(100000);
>>>>                boneActor.SetMapper(geobonemapper);
>>>>                //boneActor.GetProperty().SetColor(1, 0.4782, 0.2546);
>>>>                boneActor.GetProperty().SetColor(1, 0.75, 0.5);
>>>>                //boneActor.GetProperty().SetColor(1, 0.3, 0.3);
>>>>
>>>>
>>>>                boneActor.GetProperty().SetOpacity(1.5);
>>>>                boneActor.GetProperty().SetDiffuse(1.75);
>>>>                boneActor.GetProperty().SetSpecular(1.75);
>>>>                boneActor.GetProperty().SetSpecular(0.3);
>>>>                boneActor.GetProperty().SetSpecularPower(20);
>>>>                boneActor.GetProperty().SetOpacity( 3.3 );
>>>>                boneActor.GetProperty().SetDiffuse(0.8);
>>>>                boneActor.GetProperty().SetAmbient(2.2);
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>>
>>>>
>>>>         
>>