<ION_SCRIPT>
<ION_HEADER>
<TITLE>Image Data</TITLE>
</ION_HEADER>
<ION_BODY>
<FONT SIZE="+2">Image Data</FONT>
<BR>
<ION_DATA_OUT>
<IDL>
; Read in the original image:
image = read_png( filepath(sub=['products','ion','ion_script','examples', 'data'], 'landsat.png'), r, g, b)
; Calculate the x subscripts:
xstart = $CENTER_X - $REGION_W/2
xend = $CENTER_X + $REGION_W/2 - 1
; Calculate the y subscripts:
ystart = $CENTER_Y - $REGION_H/2
yend = $CENTER_Y + $REGION_H/2 - 1
; Create the region to be displayed:
region = image[xstart:xend, ystart:yend]
; Print min, max, and mean:
print, '<B>Minimum Value:</B>', min(region)
print, '<B>Maximum Value:</B>', max(region)
print, '<B>Mean Value:</B>', mean(region)
</IDL>
</ION_DATA_OUT>
</ION_BODY>
</ION_SCRIPT>
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