DOC: Fix typos and improve grammar

Fix typos and improve grammar.

Author: jhlegarreta

Modules/Core/Common/include/itkImageBase.h

@@ -146,7 +146,7 @@ class ITK_TEMPLATE_EXPORT ImageBase : public DataObject
 
   /** Spacing type alias support.  Spacing holds the size of a pixel.
    * The spacing is the geometric distance between image samples along
-   * each dimension. ITK only supports positive spacing value:
+   * each dimension. ITK only supports positive spacing values:
    * negative values may cause undesirable results.  */
   using SpacingValueType = SpacePrecisionType;
   using SpacingType = Vector<SpacingValueType, VImageDimension>;
@@ -156,7 +156,7 @@ class ITK_TEMPLATE_EXPORT ImageBase : public DataObject
   using PointValueType = SpacePrecisionType;
   using PointType = Point<PointValueType, VImageDimension>;
 
-  /** Direction type alias support.  The Direction is a matix of
+  /** Direction type alias support.  The Direction is a matrix of
    * direction cosines that specify the direction in physical space
    * between samples along each dimension. */
   using DirectionType = Matrix<SpacePrecisionType, VImageDimension, VImageDimension>;

Modules/Core/ImageAdaptors/include/itkImageAdaptor.h

@@ -122,7 +122,7 @@ class ITK_TEMPLATE_EXPORT ImageAdaptor : public ImageBase<TImage::ImageDimension
    * of the index (0,0). */
   using typename Superclass::PointType;
 
-  /** Direction type alias support  The Direction is a matix of
+  /** Direction type alias support  The Direction is a matrix of
    * direction cosines that specify the direction between samples.
    * */
   using typename Superclass::DirectionType;

Modules/Core/Mesh/include/itkTriangleMeshToBinaryImageFilter.h

@@ -143,7 +143,7 @@ class ITK_TEMPLATE_EXPORT TriangleMeshToBinaryImageFilter : public ImageSource<T
 
   itkGetConstReferenceMacro(Spacing, SpacingType);
 
-  /** The Direction is a matix of direction cosines
+  /** The Direction is a matrix of direction cosines
    *  that specify the direction between samples.
    * */
   itkSetMacro(Direction, DirectionType);