EMTOOL v1.4
Emtool is a program for display and manipulation of electron micrographs.
It's primary advantage over programs like boxmrc and imagic is that it
is much more interactive and easier to use. It does not do 3d reconstructions,
but rather specializes in 2d image manipulation. Binary releases for SGI
(5.3 and above) and Linux (x86) are now available. Source will be availiable
sometime in the next few months. There is some copyrighted code that I
need to replace before I can release it.
Click on the image for a (large) screenshot:
Current features include:
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Reads and writes several image formats: MRC, imagic, Spider , and ScansALot
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Automatic byte order correction (see notes).
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Simple on-line help.
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Multiple images can be loaded simultaneously and organized into groups.
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Multiple image windows can be open at the same time.
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Multiple images can be displayed in a single window
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Interactive brightness/contrast adjustment
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Scalable histogram of densities in the displayed image
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Various image processing tools (image masking, grayscale clipping, filtering,
etc...)
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Interactive (real time) zooming in and out with non-integral magnification
factors.
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FFT, IFT, CCF's, etc. within the program.
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CTF fitting/defocus determiniation.
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Interactive and non-interactive wavelet filtering for noise reduction.
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Boxing support with multiple options for box display style.
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Reads and writes standard boxmrc/ICE box database files.
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Boxed images are placed into a group which may be saved directly as an
imagic file or a set of MRC files
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Uses only freely available toolkits (not motif) so it can be compiled on
just about any machine that uses X.
Notes:
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Byte order correction: Different types of computer use different byte ordering.
For example, the DEC Alpha and all Intel processors use the opposite byte
order than the SGI's. Emtool will automatically read files in either byte
order. When files are written they will use the byte order which is correct
for the machine emtool is running on.
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There are several options, including whether to use a public or a private
colormap on the 'Preferences' panel in the 'Tools' menu. Go through this
panel when you first use the program.
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If you use a private colormap the menus will work a little strangely. This
is a bug in the toolkit I used for the GUI, and there isn't currently a
fix for it.
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Please report any strange crashes. There may still be a few pesky bugs
hanging about.
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times since May 6, 1997.
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Last updated 12/03/97
Mail coments and suggestions to:sludtke@bcm.tmc.edu