Osiris Viewer Interface Notes

Image/Plot Resize

- The browser display is divided into three panels: control, image, and plot panels. Image and plot sizes can be adjusted by resizing the browser window or the individual panel sizes.

Image Type Selection:

- The image area displays the "average image" or the "median image" of multiple image planes with the median image being the default.

- To alternate the display between an average image and an median image, use the radio button for "Median"/"Average".

- The specific image range for averaging or computing median can be specified by "center plane number" and "number of planes" via the input fields, slider, or the various increment/decrement buttons.

Plane Averaging Computation:

- ❊ The plane average is computed by computing the start plane based on the "number of planes to be averaged" and the "center plane number" as follows:

      	  nplane: "number of planes to be averaged"
                cplane: "center plane number"

      	  splane = cplane - nplane/2;

  then averaging pixels of nplanes together starting from splane.

  So if "center plane" is 100, and the "nplane" is an odd number like 9, then the average plane is the average of plane 96 to plane 104 (i.e. 4 planes before plane 100 and 4 planes after plane 100); however if "nplane" is an even number like 10, then the average plane is the average of plane 95 to 104 (i.e. 5 planes before plane 100 but only 4 planes after plane 100).

Image Cursor Mode:

- The action taken when createing a box by clicking and dragging the cursor on the image is set by either "Image Zoom" or "Wavelength Plot" selections.

- When "Image Zoom" is selected, the area inside the box will be zoomed to fill the image display area.

- When "Wavelength Plot" is selected, the wavelength plot will be produced by averaging all the pixels inside the box area in each plane. Plane numbers are converted to wavelength and the plot is shown in the bottom panel.

Zoom and Reset buttons:

- Coarse image zoom steps are available via the image zoom and reset buttons.

- Plot zoom-in is available by dragging a box shape on the plot to define a plot zoom area.

- plot zoom-out and reset is available via the zoom out and reset buttons.