analyze image

Before you can generate statistical information about the objects in an image, you must analyze it. During the analysis, the system scans the image, determines the boundary of each separate object in the image, determines the number and shape of all the holes in each object, and optionally performs a variety of geometric measurements of each object.

Because the geometrical analysis can be time consuming, and because you may not wish to use some of the available measurements, you can "turn off" certain parts of the processing. The three toggles in the menu function as follows:

Perform Basic Calculations
If set to No, no measurements are performed, and you cannot create graphs or statistics files. All you can do is create new bitmaps and vector files. You should generally set this toggle to No when all you want to do is convert a bitmap into a vector image. If this toggle is set to Yes, then the following measurements are available:

Calculate Perimeters/Tortuosity
If set to No, the system skips the calculation of object perimeters, which is somewhat time-consuming. If set to Yes , the calculation is performed, and the Perimeter and Tortuosity are available.

Calculate Roughness
If set to No, the system skips the calculation of object roughness, which is somewhat time-consuming. If set to Yes, the calculation is performed, the roughness is available.

To start the analysis, click on the ANALYZE THE IMAGE menu field.

(Note: the Shape Harmonics are not calculated unless you specifically ask for them in a graph, because they take a long time to calculate.)