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8.4 Image formats
Due to the high dynamic range of 20 bits (1’000’000) of the PILATUS
detectors, images are stored as 32 bit (unsigned) integers. These images can
be viewed and analyzed with TVX or other image viewers. Many viewers do
not support 32 bit TIFF files; however these images may be read in IDL or
MATLAB.
The default image file-type for TVX is set in tvxrc; however, any file-type can
be specified explicitly. Camserver has no default, so the file type must be
specified explicitly for each exposure.
TVX supports the following image formats:
.
Format Description
.tif 32 bit TIFF files
.edf ESRF data format
.cbf Crystallographic binary format
.img raw data format
8.5 Analysis commands
TVX offers a large variety of image analyzing and processing commands. The
most important commands are described in this document.
All created data are stored in the graphs directory.
Command Description
move fn1=fn2
The basic image manipulation command. In the simple
form shown, this copies an image to a new name or
directory. However, fn2 can be any arithmetic
expression of images and constants.
Integrate integrate the pixels selected by the current selection tool
- box, butterfly (includes straight-line case), or spot
(annulus tool) - and show the resulting graph.
Usage: integrate [IM] [graph_name]]
For the butterfly, the graph name can be given as the
second parameter; in this case the image name must be
specified. In other cases, the default image is used if no
image is specified.
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