2D Measurement

This tool allows creating shapes to obtain measurements of them. If there is no spatial calibration, the parameter values are displayed in pixels (except the orientation, which is expressed in degrees, and the eccentricity, which has no unit). For getting more 2D parameters, the 2D drawings can be converted into 2D objects.

In the toolbar above, the first toggle button allows selecting or moving drawings, the other ones allows creating 2D shapes. The two arrow buttons allow going from one shape to another. The last button will delete the selected drawings.

The Show Histogram button opens the histogram of the image part, delimited by the selected 2D drawing.

The min and max values limit the range of pixel intensities, except for the All data table that shows all intensities for all channels. In the Statistics table, the Threshold ratio gives the ratio between all the shape pixels and the number of pixels which have intensities in the limited range. The selected table can be saved in CSV format.

 Note: When moving or resizing a 2D drawing, or when the image is changed, the histogram is automatically actualized.

2D Measurement preferences

Only the checked parameters will appear in the Selected Drawing panel and in the Data Viewer. More details about the parameters are described in the Object Descriptors.

 Note: To display the preferences, open the Project Preferences window and select 2D measurement.