TF CTS - Transfer Function - 2D & 3D CTF correction

PURPOSE

2D & 3D CTF correction of a series of images by Wiener filtering.

SEE ALSO

TF	[Transfer Function - Defocus dependent]
TF C	[Transfer Function - Complex]
TF C3	[Transfer Function - Complex 3D]
TF CT	[Transfer Function - phase flipping, Complex, Binary]
TF CT3	[Transfer Function - Complex, Binary 3D]
TF D	[Transfer Function - Display]
TF DDF	[Transfer Function - Determine DeFocus & amplitude contrast]
TF DEV	[Transfer Function - Determine Envelope function]
TF DNS	[Transfer Function - Determine and delete Noise background]

USAGE

.OPERATION: TF CTS

.ENTER TEMPLATE FOR IMAGE FILE: img***
[Enter template name of image series to be restored.]

.ENTER FILE NUMBERS OR SELECTION DOC. FILE NAME: 1-10
[Enter numbers of files. The file numbers can also be read from a selection document file where file numbers are contained in the first register (not the keys).]

.ENTER TEMPLATE FOR CTF FILE: ctf***
[Enter template name of file series containing CTFs for respective images. The CTF files have to have the same number as corresponding defocus groups.]

.SNR : 100
[Enter Signal-to-Noise Ratio of the images.]

.OUTPUT FILE: MOL003
[Enter name for output file.]

NOTES

1. Input files can be either real or Fourier format. CTF files must be in Fourier format. All files must have the same dimensions. Output file is real.

2. CTF functions can be generated from 'TF C' (for 2-D) and 'TF C3' (for 3-D). All the parameters can be determined from 'TF DDF' and 'TF DEV'.

3. It is possible to use this operation for a single image.

4. The theory is described in: J. Frank and P. Penczek (1995) On the correction of the contrast transfer function in biological electron microscopy. Optik 98:125-129.

SUBROUTINES

RCTFSS, MULFC3

CALLER

UTIL1