"Looking for a program on the internet to measure images, I found "KLONK Image Measurement Light". I was amazed by its simplicity! It was exactly what I needed to measure perimeter, diameter and area of selected portions within a photo. Best of all, they provide a very high quality program for image measurements which is available for download and use free of any charges. I am now acquiring the scientific version. I strongly recommend KLONK!"

Maria Lúcia de Bustamante Simas, Ph.D - Associate Professor, Visuel Perception Laboratory, LabVis-UFPE - Institut of Psychology, CFCH - Federal de Pernambuco University