From Wikipedia, the free encyclopedia
Jump to: navigation, search

Imatest LLC is a company that produces image quality testing software and offers a range of consulting services. Imatest was founded by photographer/engineer Norman Koren in Boulder, Colorado in 2004 to develop software for testing digital camera image quality.

Using Imatest software, a variety of image quality factors can be analyzed including image sharpness, color response, noise, dynamic range, tonal response, lens flare, lens distortion, lens vignetting, sensor non-uniformity, and color moiré.

Imatest has been adopted by a wide range of industries that employ embedded digital imaging systems, including mobile imaging (camera phones), medical imaging, aerospace and machine vision, as well as publications/reviews, and academic, cultural, and research institutions. Imatest software is referenced in research, art, and industry.[1][2][3]

Among many other applications, Imatest has been used to adjust images with different amounts of sharpening to a standard amount of sharpening, and to compare resolution in of those adjusted images.[4] Imatest also tests color accuracy, tone-scale linearity, image distortion, light falloff, and printing gamut.


  1. ^ V. Kaufmann & R. Ladstädter (2005). "Elimination of Color Fringes in Digital Photographs Caused by Lateral Chromatic Aberration". XXth International CIPA Symposium. 
  2. ^ Anthony James Allowatt (2005). "PhETA: An Interactive Tool for Analyzing the Quality of Digital Photographs from Edge Transitions". Master's thesis: Virginia Polytechnic Institute. 
  3. ^ Uwe Steinmueller & Juergen Gulbins (2006). Fine Art Printing for Photographers: Exhibition Quality Prints with Inkjet Printers. Rocky Nook. ISBN 1-933952-00-8. 
  4. ^ Norman Koren (2006). Nitin Sampat; Jeffrey M. DiCarlo; Russel A. Martin, eds. "The Imatest program: comparing cameras with different amounts of sharpening". Digital Photography II, Proc. of SPIE-IS&T Electronic Imaging. 6069. 

External links[edit]