Skip main navigation

New offer! Get 30% off one whole year of Unlimited learning. Subscribe for just £249.99 £174.99. New subscribers only. T&Cs apply

Find out more

Colour thresholding

How to use Fiji to perform thresholding on colour images, in particular by using HSV (Hue, Saturation, Value) colour spaces.

Often, the background and foreground in an image might be similar in brightness, but have distinct colours, or either the foreground or background might be a uniform distinct colour.

In this case, colour thresholding might perform better than thresholding on the grayscale value alone. This video shows how that is done using Fiji by using the HSV colour space, and also how once selected Fiji can be used to count distinct objects.

To try this out yourself, have a look at the practical later in the activity.

This article is from the free online

Introduction to Image Analysis for Plant Phenotyping

Created by
FutureLearn - Learning For Life

Reach your personal and professional goals

Unlock access to hundreds of expert online courses and degrees from top universities and educators to gain accredited qualifications and professional CV-building certificates.

Join over 18 million learners to launch, switch or build upon your career, all at your own pace, across a wide range of topic areas.

Start Learning now