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Comment: Migrated to Confluence 4.0

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  • A dropdown list of cameras to select from.
  • The lens control, if this camera has a lens PV.
  • The colormap control.  The user can select one of five colormaps: HSV, Hot, Jet, Cool, or Gray.  Each of these can be set up to be linear, log, or exponential, with user-specified minimum and maximum values.
  • Averaging control.  The viewer can either display single frames, an on-IOC calculated average (if the IOC supports this), or a locally performed average.
  • IOC image control (for camera type "IC" only, not displayed here).  If the IOC supports an on-IOC region of interest selection, controls to set the region and the bit-shift are displayed here.
  • On-image markers.  The current location of the on-image markers are given here.  The buttons to the left of these location can be enabled so that left-clicking on the image will set the marker.
  • Wiki MarkupRegion of interest control.    A region of interest can be selected in the viewer by either entering parameters or clicking on the "\[Set ROI\]" button and then left-clicking and dragging on the image.    Clicking on the "Reset ROI" button will set the region of interest to the entire image.
  • Droplet finder control.  Some IOCs include a droplet finder that has two regions of interest that are examined to find the location of a dark spot (droplet).  There are radio buttons that can be used to select one of these regions of interest, and push buttons that can be clicked to either set the viewer ROI from the drop finder ROI, or vice versa.  A checkbox allows the viewer to constantly update markers 1 and 2 from the calculated drop locations.  Finally, each ROI has a noise floor that can be set to make the algorithm more or less sensitive.  (The droplet finder works by projecting the ROI onto both axes, and then fitting a quadratic to the projections.  Once the projection is subtracted from the fit, the peak is the droplet, which is located by doing a center of mass calculation.  The noise floor is the fraction of the maximum value below which any projected value is considered to be noise and is set to zero.)
  • Zoom control.   Controls are provided to zoom in, zoom out, zoom to the region of interest, or zoom to the actual image size.

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