IMAGING GLOSSARYROI (AccuSoft image processing)Region Of Interest. A region of interest or ROI is a specification and date structure that allows for the definition of arbitrarily shaped regions within a given image, often called sub-images.
An ROI can be thought of as a place holder which remembers a location within an image. ROIs are of several types, each defined in a manor that makes sense for its type.
ROIs are either a rectangle (also called an
AOI), square, circle, or a segment list.
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A rectangle is defined by any two points in the image. From these two points one and only one rectangle can be drawn.
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A square is defined by a single point and a single length.
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A circle is defined by its center and radius.
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A segment list is an arbitrary list of triplets (x, y, xlen); a single point and a length to the right.
Every point in an image is either inside or outside of a given ROI, and the ROI can encompass the entire image.
See AOI.
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