Info Menu Notes

02/23/2007

Info Menu - Notes

If Lispix does not print out the numbers to sufficient precision, for example the area of a large image prints at 2.oe+6, increase the
number of digits for the "nice number format".

Help / Parameters / nice-number-format-length

This defaults to7 digits. Increase it to, say, 12 digits.

Info / rectangle stats - explanation

Statistics for ZRCONC249A using mask MASK-ZRCONC249A
- This is the title line for the statistics. Note that the mask has 'MASK-' appended to the image name from which the mask was made
X range 27 51
Y range 7 59
- These ranges give the sides of the image rectangle - the region for which the statistics are given below.
N pixels 997
- Number of pixels within the image rectangle that are also selected (white or 1) in the mask
Total N pixels 1325
- Total number of pixels within the image rectangle,
- (X-range-max - X-range-min + 1)*(Y-range-max - Y-range-min + 1)
Pixel value Mean .199308
- Average value.
Pixel value Sum 198.71
Pixel value Min 0.1931
Min value location 31 24
- Coordinates of the pixel, x and y.
- If more than one, this is the location of the first pixel, in scan order.
Pixel value Max 0.215
Max value location 33 8

Coordinates of the pixel, x and y.
If more than one, this is the location of the first pixel,
in scan order.

Min positive pixel value 0.1931
- Ignores any negative pixel values. Useful for ignoring
  outliers that go negative.
Min pos val location 31 24
- Coordinates of the pixel, x and y.
- If more than one, this is the location of the first pixel,
  in scan order.
Pixel val wtd Centroid 39.095 32.0427
- Coordinates of centroid, x and y.
Sample std. dev. 0.00407339
- (Square root of the sample variance
Std. error of mean 0.00012901
- Standard deviation devided by root N
Variance / mean 0.00008325
- Test for random Poisson noise, where variance = mean.