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Assess 2.0: Image Analysis Software (Single User) CD-ROM
Assess 2.0: Image Analysis Software (Single User) CD-ROM

Assess 2.0 quantifies and measures plant diseases quickly and accurately at a fraction of the cost of general image analysis software.

Item No. 43696
APS Member Price (sign in or join APS to save): $ 265.50
APS Members save: 10.0%

Also available in Digital Download with PDF Manual and Digital Download with PRINT manual

For questions and answers on the software, click here.

Quickly and easily quantify disease symptoms on plants with Assess 2.0: Image Analysis Software for Plant Disease Quantification. Rapid measurement of leaf area, percent disease, root length, lesion count, percent ground cover, and applications are made simple with this versatile and affordable software. Assess 2.0 introduces automatic measurement (user-independent) of many plant diseases and ground cover, to make disease quantification fast, easy, reliable, and reproducible. Assess 2.0 can also be used as an interactive laboratory tool for real-time length and area measurements of anything that can be imaged (scanned, digital photographs, microscopy, etc.). 
The intuitive Windows-based interface makes image analysis and plant disease quantification simple. Assess 2.0 is compatible only with 32-bit Windows Operating systems. Please verify that you are running 32-bit Windows before purchasing. The program supports Twain-compliant imaging devices such as scanners, frame grabbers, or digital cameras for image acquisition, although images can be imported from any computer drive, CD, network, or other applications. Assess 2.0 supports all standard graphic file formats and most non-standard formats. 
Accompanied by a textbook-quality user manual with nineteen easy-to-follow tutorials, Assess 2.0 makes learning and training fascinating and fun. Automated installation is hassle-free, allowing users to start working on plant disease quantification immediately. Optimized for use in plant pathology and agronomy, this revolutionary tool produces invaluable results for plant pathologists, agronomists, plant breeders, horticultural scientists, and anyone needing to analyze, quantify, and measure plants and plant diseases.

What’s NEW in Assess 2.0?

  • Automatic measurement of many plant disease lesions – No matter who measures the disease lesions, the result will always be the same.
  • Automatic measurement of ground cover Agronomists and those interested in measuring ground cover can do so with a single click of the mouse.
  • Automatic recognition and percent-disease measurement of individual leaves on the same image- This new feature is a real time-saver. You can scan many leaves on the same screen and obtain a disease measurement for each leaf with one click of the mouse.
  • Simple calibration Images scanned in Assess 2.0 no longer require calibration. Additionally, if the resolution of an image is known (dpi), the user simply enters the values into Assess 2.0. Physical units of measure can now be converted in Assess 2.0. You can calibrate an image in inches and later select one of 10 units without any calibration.
  • Support for all standard and many non-standard file formats for reading and writing Assess 2.0 can handle over 60 file formats, including several RAW formats for digital cameras. No need to convert images using other software.
  • Scanner interface

What’s ENHANCED in Assess 2.0?

  • Easy and intuitive user interface
  • Rapid measurement of area, percent disease, percent ground cover, lesion count, and root length
  • Real-time user interactive tool for area, length, and angle measurement
    Assess 2.0 can be used as a real-time digital tool for the measurement of area and lengths. This is a very fast way to measure areas of traced objects, lengths of straight lines, or arbitrarily-shaped curves (such as hyphae and roots).
  • Image acquisition from any Twain-compliant device including scanners, digital cameras, and frame grabbers
  • Simple macro utility and language to automate tasks and perform batch processing
Watch the new ASSESS 2.0 Demonstration Video that shows all the new and enhanced features.

 To view the demonstration video:

You will need the Windows Media™ Player, a plugin available from Microsoft Corp. If it is already installed on your computer, click on the links to view the clips. If you do not have the Windows Media™ Player, please follow all of the instructions below to obtain a copy of the plugin.

  • Click here to go to Microsoft's Windows Media download site.
  • Select the appropriate version of the plugin for your computer.
  • Select the correct option(s) in the dropdown menus and press the 'Download Now' button.
  • When the download is complete, click on the downloaded file to install the plugin and follow the directions on your screen.
  • When the setup is finished, the plugin will be installed.
  • Click on the link below and the video clip should open automatically.

Assess 2.0 (User Manual) Contents

Technical Data




I. Introduction

II. Starting Assess

III. The threshold panel

IV. Working with images: Some basics

V. Working with the Area of Interest (AOI)

VI. Spatial calibration

VII. The spreadsheet

VIII. Measurement

IX. The image histogram

X. Feature extraction

XI. The Digital Ruler

XII. Filtering

XIII. Macro utility

XIV. Image menu

XV. Tools

XVI. Options

XVII. Tutorials

XVIII. Questions and answers


Suggested Reading

This is the Single-User License of Assess 2.0: Image Analysis Software for Plant Disease Quantification.

Single-User License:
Use of the Program is limited solely to the individual purchaser. It may not be loaned, rented, or otherwise shared with other individuals. The CD-ROM and its content may not reside concurrently on more than one computer and it may not be networked.

Publish Date: 2008
Format: Spiral bound with companion CD-ROM compatible with PC
ISBN: 978-0-89054-369-6
Compatible with Windows, not compatible with Mac
Pages: 125
Publication Weight: 2 lbs

By Lakhdar Lamari

Assess 2.0: Image Analysis Software for Plant Disease Quantification (Single User)

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