Calculates forward and inverse Fourier transforms. Uses a real, 2D Fast Hartley Transform (FHT) routine contributed by Arlo Reeves, the author of ImageFFT. The frequency domain image is displayed as an 8-bit log scaled power spectrum with the 32-bit FHT as an image property. Editing, filtering, crosscorrelation and autocorrelation capabilities will be added in a future version.
Author: Werner Bailer (firstname.lastname@example.org) Date: 2001/10/29 Source: DCT_.java Installation: Download DCT_.class and DCT.class to the plugins folder and restart ImageJ. Description: Calculates forward and inverse
Author: Wayne Rasband (email@example.com) Date: 2000/05/31 Requirements: ImageJ 1.17j or later Limitations: Limited to square kernels and real images Source: Real_Convolver.java Installation: Download Real_Convolver.class to