Image3DProjection

Image3DProjection[image]

takes a 3D image and returns a 2D image of maximum projection onto the - plane.

Image3DProjection[image,dir]

performs a projection in the direction specified by dir.

Image3DProjection[image,dir,mode]

specifies the projection mode.

Details

  • Image3DProjection is a way of seeing the structure inside a volume.
  • Image3DProjection[image] is equivalent to Image3DProjection[image,Bottom,"Max"].
  • Possible settings for dir include:
  • Left,Right,Front,Back,Top,Bottomplanes to project to
    wa 3D vector specifying the direction of projection
    {w,vert}aligns the vertical of the projection to vert
  • The default projection plane is Bottom, corresponding to projection direction {0,0,1}.
  • The default vertical is the direction unless the projection plane is Top or Bottom, in which case the default vertical is the direction.
  • For an arbitrary direction of projection, the resulting image represents the smallest rectangle that encloses the entire rotated volume. This cropping corresponds to Automatic size in ImageRotate.
  • Possible settings for the projection mode include:
  • "Max"color of the pixel with the maximum intensity value
    "MaxIntensity"maximum projection of the grayscale volume
    "Mean"mean projection for every color channel
    "MeanIntensity"mean projection of the grayscale volume
  • Image3DProjection[image] is equivalent to Image3DProjection[image,Bottom,"Max"].

Examples

open allclose all

Basic Examples  (2)

Maximum intensity projections:

Project color of the pixel with maximum intensity:

Scope  (3)

By default, the projection is performed onto the - plane:

This is the same as specifying "XY":

Project onto the "XZ" plane:

Project onto the "YZ" plane:

Specify an arbitrary direction:

By default, maximum projection is performed:

Perform mean projection:

Maximum projection of a color volume:

Maximum intensity projection of a color volume:

Mean projection of a color volume:

Mean intensity projection of a color volume:

Applications  (1)

Create a combined left, front and top view of a 3D image:

Introduced in 2017
 (11.1)