Threshold values or Raw data (numerals)

Hotkey: R
Menu: Image > Threshold / Raw data
Context menu: Threshold / Raw data

This image shows the Threshold values as number. The values are in the range of 0 dB through 45 dB, dependant on the instrument. High values are high sensitivity, low values mean low sensitivity.

< 0 -- absolut defect, brightest light stimulus not seen

(33) -- value in brackets is the second value at this point (only in case of double measurement)


Threshold values are untreated RAW DATA and not norm-related. Therefore the validity is limited.   -- Click here for more information about this value type, the meaning and limitations


CONCLUSION: This image type makes double measurements and absolute defects visible. In case of missing normal values (rare special examinations) these numbers are the basis for evaluation.   -- If normal values are present, there is better information from total deviation numbers and other representations on the basis of defect depth (color defect map, cumulative curve, probability map..)