Help System

Menu for the XCL12 Package

• autocorr - Autocorrelate an image.

• bracewell - Create functions and view them with FTs

• (educational script).

• carith - Multiply or divide complex images.

• crosscor - Cross-correlate two images.

• factor - Display prime factors of a number.

• fconvolve - Convolve two images.

• forward - Compute forward Fourier transform of an image.

• frompolar - Convert amplitude & phase to real & imaginary parts.

• ftplot - View 4-way data and FTs.

• inverse - Compute inverse Fourier transform of an image.

• listprimes - Display first N prime numbers.

• mkfunc - Create analytic form test data (image).

• powerspec - Compute the power spectrum of an image.

• shift - Shift an image by a specified number of pixels.

• taperedge - Apply a cosine bell or linear taper to image edges.

• testfunc - Generate analytic form test data (ASCII).

• topolar - Convert real & imaginary parts to amplitude & phase.

• (Type "help fourier option=sysdoc" for general information

• about the 'fourier' package).