DOC: Use Doxygen syntax to create automatic links to members

Use Doxygen syntax to create automatic links to members.

According to the relevant Doxygen documentation:
https://doxygen.nl/manual/autolink.html

Modules/Core/Common/include/itkImageToImageFilter.h

@@ -67,13 +67,13 @@ namespace itk
  * first.
  *
  * All inputs to ImageToImageFilter (if there is more than one) are
- * checked in the VerifyInputInformation method to verify that they
+ * checked in the VerifyInputInformation() method to verify that they
  * occupy the same physical space.  If the input images are in the
  * same physical space, then the location of each voxel is identical,
  * and the filter can operate voxel-by-voxel in index space.  Some
  * filters -- registration filters, for example -- will violate this
  * precondition, in which case they should redefine
- * VerifyInputInformation to relax or eliminate this requirement.
+ * VerifyInputInformation() to relax or eliminate this requirement.
  *
  * Access methods -- Set/GetCoordinateTolerance and
  * Set/GetDirectionTolerance -- are provided for cases where the
@@ -227,7 +227,7 @@ class ITK_TEMPLATE_EXPORT ImageToImageFilter
   /** \brief Verifies that the input images occupy the same physical
    * space and the each index is at the same physical location.
    *
-   * The default implementation of the PropagateRequestedRegion
+   * The default implementation of the PropagateRequestedRegion()
    * methods copies the index and size from the output to the
    * input. This makes an implicit assumption that the images occupy
    * the same physical location at each voxel. This method enforces

Modules/Core/Common/include/itkProcessObject.h

@@ -779,11 +779,11 @@ class ITKCommon_EXPORT ProcessObject : public Object
    * correctly, that all required inputs are set, and needed parameters
    * are set appropriately. If not valid an exceptions will be thrown.
    *
-   * This method is called before UpdateOutputInformation is
+   * This method is called before UpdateOutputInformation() is
    * propagated to the inputs.
    *
    * The ProcessObject's implementation verifies that the
-   * NumberOfRequiredInputs are set and not null.
+   * #m_NumberOfRequiredInputs are set and not null.
    *
    */
   virtual void

Modules/IO/ImageBase/include/itkStreamingImageIOBase.h

@@ -96,8 +96,8 @@ class ITKIOImageBase_EXPORT StreamingImageIOBase : public ImageIOBase
   void
   PrintSelf(std::ostream & os, Indent indent) const override;
 
-  /** \brief Returns true if GetIORegion is not the same size as the
-   * largest region give by GetNumberOfDimensions.
+  /** \brief Returns true if GetIORegion() is not the same size as the
+   * largest region give by GetNumberOfDimensions().
    *
    * This compares the IORegion to the size of the image in the
    * file. With out regaurd to the dimensions of either, if the
@@ -129,13 +129,13 @@ class ITKIOImageBase_EXPORT StreamingImageIOBase : public ImageIOBase
    * \param _buffer is pointer to an allocated block of memory
    * suitable to hold the IORegion of the pixel type
    *
-   * This methods relies on GetDataPosition to determin where the
-   * data is located in the file. It uses m_IORegion to determin the
+   * This methods relies on GetDataPosition() to determin where the
+   * data is located in the file. It uses ImageIOBase#m_IORegion to determin the
    * requested region to read.
    *
    * The files data is assumed to be unpadded and continuous in the
    * file for the size of the image in the dimensions of the
-   * m_IORegion. This means that the image file could be broken into
+   * ImageIOBase#m_IORegion. This means that the image file could be broken into
    * slices, but not blocks for this methods to be used.
    */
   virtual bool
@@ -148,8 +148,8 @@ class ITKIOImageBase_EXPORT StreamingImageIOBase : public ImageIOBase
    * \param _buffer is a pointer to the data in a continuous block
    * for the region
    *
-   * This methods relies on GetDataPosition to determin where the data
-   * is located in the file. It usesy m_IORegion determin the requested
+   * This methods relies on GetDataPosition() to determin where the data
+   * is located in the file. It usesy ImageIOBase#m_IORegion determin the requested
    * region to written.
    */
   virtual bool