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

[Gururajan.R]

am getting gray color.
because, i had set ( boneActor.GetProperty().SetColor(0.75,0.75,0.75);)
so that am getting gray color for entire my image

actually my image has head of human , it has vein and blood colors in
it, i dont know how to bring real vein and blood color

thanks to your effort for me.

thanks
guru

Bill Lorensen wrote:
> What colors do you see with your current settings?
>
> On Mon, Oct 5, 2009 at 9:34 AM, Gururajan.R <gururajan.r at raster.in> wrote:
>   
>> real bone, vessels , blood  these are the colour should be applied to
>> relevant parts of the image.
>>
>> thanks
>> guru
>> Bill Lorensen wrote:
>>     
>>> What do you mean by realistic color?
>>>
>>> On Mon, Oct 5, 2009 at 8:46 AM, Gururajan.R <gururajan.r at raster.in> wrote:
>>>
>>>       
>>>> 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);
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>>>>>>>>                 
>>