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• You can set ranges to define good images and dark images. If both are set, you have the option to display good images background subtracted, where background subtraction is based on the average of background images so far collected.
• Each image can be separately rotated, shifted and scaled (zoomed in/out).
• Nicknames can be given to the input images. Defaults are Im1, Im2... etc. These names will be used if you plot differences, or other manipulations of the original images.
• The images are subtracted and differences displayed as well as fourier transform of differences. Examples of what may be displayed. To display other things, at this stage you have to edit pyana_image.py to change this behaviour.

  Code Block
  none none
  image_addresses # address string of Detector-Id|Device-ID good_range # threshold values selecting images of interest (Format: low,high) dark_range # threshold values selecting dark images (Format: low,high) image_rotations # rotation angle, in degrees, to be applied to image(s) image_shifts # npixel shifts, format (nx,ny), to be applied to image(s) image_scales # scale factor (float) to be applied to images image_nicknames # nicknames for plot titles image_manipulations # String containing keywords: Diff, FFT output_file # filename. Valid extensions are .hdf5, .txt (ascii) or .npy (numpy binary) n_hdf5 # if output file is hdf5, combine n events in each output file.

  Displays of three different Pulnix TM6740 images of YAG screens, after rotation/translation. Also shown, differences between images and FFT of differences.

pyana_ipimb

This module extracts and displays data from IPIMB type detectors. There are two types of information: IpimbData (raw data) and IpmFex (feature extracted data). Only the last type of data is currently implemented, but other data can also be added. Currently the display will show a plot of the intensity measured in each of the four channels, the beam spot position estimated from sums and differences of the individual intensity measurements, and the sum of the four measurements as a function of time. The plot included below has these plots for 4 different IPIMB detector sources.

ipimb_addresses     # list of IPIMB addresses

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