ImageDifference

ImageDifference[image1,image2]

gives an image in which each pixel is the absolute difference of the corresponding pixels in image1 and image2.

Details

  • The images image1 and image2 must have the same dimensions.
  • ImageDifference works with arbitrary single-channel or multi-channel images.
  • If image1 or image2 is a single-channel image, the absolute difference is computed from each channel of the other image in ImageDifference[image1,image2].
  • If image1 and image2 are both multichannel images, the values in each channel are compared separately.
  • ImageDifference[image1,image2] gives an image with the largest type of either image1 or image2.
  • For binary images, ImageDifference effectively finds the logical XOR of pixel values.
  • ImageDifference works with Image3D objects.

Examples

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Basic Examples  (2)

Find differences between two versions of an image:

Logical XOR of two binary images:

Applications  (1)

Find the amount of variation in a fairly constant image:

Properties & Relations  (1)

Negate image pixels specified by a binary mask:

Introduced in 2010
 (8.0)
 |
Updated in 2012
 (9.0)