ROI histogram options

The ROI Histogram options dialog.

The settings related to scaling of the X- and Y-axes are like the scaling options for ROI intensity curves as described in “ Axis options. ”. Additional options are:

Number of bins: 

Number of bins (groups) the ROI data should be divided into

Y-scale: 

Can be either linear, logarithmic or frequency (relative number of items per bin)

Continuous: 

Display the data as continuous bars with one line per pixel intensity in the ROI

Chart type: 

Histogram: 

Display the data as distinct histograms with the number of bins specified

Linear: 

Display the data as a continuous line with the Y-value given by the number of ROI pixels at a given pixel intensity.

Cumulative histogram for all slices: 

When this option is checked, a single histogram is made for all active (i.e. visible) ROIs in all slices. When enabled, image scrolling has no effect on the displayed histogram since the histogram is the cumulative sum of all ROIs.

Related topics:

ROI Histogram