BUILT-IN WOLFRAM LANGUAGE SYMBOL

ImageAlign

ImageAlign[ref,image]
returns a version of image that is aligned with the reference image ref.

ImageAlign[ref,{image₁,…,image_n}]
gives the result of aligning each of the image_i with the reference image ref.

ImageAlign[{image₁,…,image_n}]
uses image₁ as the reference image.

Details and Options Details and Options

ImageAlign[image₁,image₂] finds a transformation of image₂ that registers it with image₁ and returns the result of applying this transformation to image₂.
ImageAlign works with arbitrary 2D and 3D images.
Resulting images have the same dimensions as the reference image.
The following options can be specified:
Background Automatic background value

Method Automatic alignment method to use

TransformationClass Automatic geometrical relation between images
Possible settings for the Method option are:

	Automatic	automatically choose a suitable method
	"Keypoints"	use corresponding keypoints
	"MeanSquareGradientDescent"	minimize the mean square distance of corresponding pixels
	"Fourier"	Fourier-based registration
	"FourierBlurInvariant"	blur invariant Fourier-based registration

With the default setting TransformationClass->Automatic, ImageAlign attempts to find the simplest possible transformation.
Possible transformations in order of increasing complexity are:

	"Translation"	translation only
	"Rigid"	translation and rotation
	"Similarity"	translation, rotation, and scaling
	"Affine"	linear transformation and translation
	"Perspective"	linear fractional transformation