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Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkImageSource.
Reimplemented in vtkImageInPlaceFilter, vtkImageAccumulate, vtkImageAnisotropicDiffusion2D, vtkImageAnisotropicDiffusion3D, vtkImageButterworthHighPass, vtkImageButterworthLowPass, vtkImageCacheFilter, vtkImageCast, vtkImageChangeInformation, vtkImageCityBlockDistance, vtkImageClip, vtkImageConstantPad, vtkImageContinuousDilate3D, vtkImageContinuousErode3D, vtkImageConvolve, vtkImageCursor3D, vtkImageDataStreamer, vtkImageDecomposeFilter, vtkImageDilateErode3D, vtkImageDivergence, vtkImageEuclideanDistance, vtkImageEuclideanToPolar, vtkImageExtractComponents, vtkImageFFT, vtkImageFlip, vtkImageFourierCenter, vtkImageFourierFilter, vtkImageGaussianSmooth, vtkImageGradient, vtkImageGradientMagnitude, vtkImageHSVToRGB, vtkImageHybridMedian2D, vtkImageIdealHighPass, vtkImageIdealLowPass, vtkImageIslandRemoval2D, vtkImageIterateFilter, vtkImageLaplacian, vtkImageLogarithmicScale, vtkImageLuminance, vtkImageMagnify, vtkImageMagnitude, vtkImageMapToColors, vtkImageMapToRGBA, vtkImageMapToWindowLevelColors, vtkImageMaskBits, vtkImageMedian3D, vtkImageMirrorPad, vtkImageNormalize, vtkImageOpenClose3D, vtkImagePadFilter, vtkImagePermute, vtkImageQuantizeRGBToIndex, vtkImageRange3D, vtkImageResample, vtkImageReslice, vtkImageRFFT, vtkImageRGBToHSV, vtkImageSeedConnectivity, vtkImageShiftScale, vtkImageShrink3D, vtkImageSkeleton2D, vtkImageSobel2D, vtkImageSobel3D, vtkImageSpatialFilter, vtkImageStencil, vtkImageThreshold, vtkImageTranslateExtent, vtkImageVariance3D, vtkImageWrapPad, and vtkMemoryLimitImageDataStreamer. |