User manual
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3. Specify the Regions of Interest (ROI) by enabling the “Selection Frame Tool”,
from the Tool Bar located in the border to the left of the image panel. The
“Selection Frame Tool” allows one or more ROI to be manipulated, i.e. moved,
sized and shaped. Be aware that in calibration you are defining the average
response of the film and the ROI should cover an area of at least 20 cm
2
.
Draw a rectangular ROI at the center of one of the exposed film strips and
adjust its size. (Hint: the exposed areas in the sample images are 10 cm
wide). Alternatively click the “Info” tab in the Film Evaluation Panel to
display a range of image data including size and position of the image and
ROI’s, the date/time the image was acquired, the scanner used, etc. Repeat
the ROI selection for each calibration strip. (Note: There are shortcuts to copy
and resize ROIs. Highlight an ROI, hold down the “Ctrl” key and then point
and click to copy the ROI. By left-clicking , you can choose from options to
copy and paste multiple ROIs and/or save them to file. Right click and
there are more choices including an option to select an ROI and size/shape
all other ROIs in the same way.)