Image Analysis
        Software for Natural Resources

SamplePoint           SampleFreq           ImageMeasurement            About

SampleFreq facilitates frequency measurements from nadir imagery by superimposing up to 10 user-defined nested frames on an image and facilitating manual user determination of presence/absence of target species within each frame. Up to 60 target species or classes are user-defined, and data are saved automatically to an Excel spreadsheet. SampleFreq was developed by Berryman Consulting in cooperation with USDA Agricultural Research Service and USDI Bureau of Land Management.

System requirements: Windows OS with .NET Framework 2.0, 40MB free disk space, MS Excel 97, 512MB RAM
Current release: 1.03;  1-3-2014
Reference: Cox SE, DT Booth, RD Berryman. 2021. Measuring nested frequency of plants from digital images with SampleFreq. Ecological Indicators 121:106946.

This software has been tested, peer-reviewed, and been found in specific projects to function properly; however, no warranty is 
implied regarding its proper function across all data sets. It is provided AS IS, with no implied liability for usage.

There is no need to uninstall an older version of SampleFreq prior to installing an updated version. No classification data will be lost if updating from an earlier version of SampleFreq.

Page updated 3-4-2021