Note: This document is for an older version of GRASS GIS that has been discontinued. You should upgrade, and read the current manual page.

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Topic: transformation

i.fft Fast Fourier Transform (FFT) for image processing.
i.ifft Inverse Fast Fourier Transform (IFFT) for image processing.
i.pca Principal components analysis (PCA) for image processing.
i.tasscap Performs Tasseled Cap (Kauth Thomas) transformation.
m.transform Computes a coordinate transformation based on the control points.
v.transform Performs an affine transformation (shift, scale and rotate) on vector map.

See also the corresponding keyword transformation for additional references.


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