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5.14 Statistics
Common statistical measures. Also see
Format=>Matrix_from_colour_chart for something to measure the
statistics for many patches at the same time.
- Stats
- Finds a set of image statistics in one operation. The first row is
for all bands together, then row 1 is for just the first band, and so
on. The columns are min, max, sum, sum of squares, mean and deviation.
- Count_set, Count_clear
- Find the number of 255 and 0 pixels in an image containing only 0 and
255.
- Plot_scatter
- Draws a scatter chart of a list of
coordinates. For example,
enter [[1,2],[3,4]] at the bottom of a column and click
Plot_scatter. You'll see a plot window with points marked at
positions
and
.
Open the row to change the plot style.
John Cupitt
2003-07-21