.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.5. .TH ANTSAI "1" "October 2017" "antsAI 2.2.0" "User Commands" .SH NAME antsAI \- part of ANTS registration suite .SH DESCRIPTION .SS "COMMAND:" .IP antsAI .IP Program to calculate the optimallinear transform parameters for aligning two images. .SS "OPTIONS:" .HP \fB\-d\fR, \fB\-\-dimensionality\fR 2/3 .IP This option forces the image to be treated as a specified\-dimensional image. If not specified, we try to infer the dimensionality from the input image. .HP \fB\-m\fR, \fB\-\-metric\fR MI[fixedImage,movingImage,,,] .IP Mattes[fixedImage,movingImage,,,] GC[fixedImage,movingImage,,,] .IP These image metrics are available: MI: joint histogram and Mattes: mutual information and GC: global correlation. .TP \fB\-t\fR, \fB\-\-transform\fR Rigid[gradientStep] Affine[gradientStep] Similarity[gradientStep] .IP Several transform options are available. The gradientStep or learningRate characterizes the gradient descent optimization and is scaled appropriately for each transform using the shift scales estimator. .HP \fB\-p\fR, \fB\-\-align\-principal\-axes\fR .IP Boolean indicating alignment by principal axes. Alternatively, one can align using blobs (see \fB\-b\fR option). .TP \fB\-b\fR, \fB\-\-align\-blobs\fR numberOfBlobsToExtract [numberOfBlobsToExtract,] .IP Boolean indicating alignment by a set of blobs. Alternatively, one can align using blobs (see \fB\-p\fR option). .TP \fB\-s\fR, \fB\-\-search\-factor\fR searchFactor [searchFactor,] .IP Incremental search factor (in degrees) which will sample the arc fraction around the principal axis or default axis. .TP \fB\-c\fR, \fB\-\-convergence\fR numberOfIterations [numberOfIterations,,] .IP Number of iterations. .HP \fB\-x\fR, \fB\-\-masks\fR fixedImageMask .IP [fixedImageMask,movingImageMask] .IP Image masks to limit voxels considered by the metric. .HP \fB\-o\fR, \fB\-\-output\fR outputFileName .IP Specify the output transform (output format an ITK .mat file). .HP \fB\-v\fR, \fB\-\-verbose\fR (0)/1 .IP Verbose output. .HP \fB\-h\fR .IP Print the help menu (short version). .HP \fB\-\-help\fR .IP Print the help menu. : 1