Skip to content

Image Processing

Statistical Glossary

Image Processing:

In image processing, the initial data are images – functions of two coordinates. Normally, images are represented in discrete form as two-dimensional arrays of image elements, or “pixels” – i.e. sets of non-negative values Math image , ordered by two indexes – Math image (rows) and Math image (columns).

A major class of methods used in image processing are various filters . The goal of filtering is to improve the initial image, e.g. to reduce the noise, to increase the contrast, to highlight boundaries, etc. Other statistical approaches, like parameter estimation and hypothesis testing can also be applied to images.

Besides the gray-scale images, where the elements Math image are scalar values, there are methods for processing color images, where each pixel is represented by several values, e.g. by its “red”, “green”, “blue” values determining the color of the pixel.

Browse Other Glossary Entries

Test Yourself

Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.

Data Analytics

Considering becoming adata scientist, customer analyst or our data science certificate program?

Analytics Quiz

Advanced Statistics Quiz

Statistics Quiz


Looking at statistics for graduate programs or to enhance your foundational knowledge?

Statistics 1 Quiz

Regression Quiz

Regression Quiz


Entering the biostatistics field? Test your skill here.

Biostatistics Quiz

Advanced Statistics Quiz

Statistics 2 Quiz

Stay Informed

Our Blog

Read up on our latest blogs


Learn about our certificate programs


Find the right course for you

Contact Us

We'd love to answer your questions

Our mentors and academic advisors are standing by to help guide you towards the courses or program that makes the most sense for you and your goals.

300 W Main St STE 301, Charlottesville, VA 22903

(434) 973-7673

By submitting your information, you agree to receive email communications from All information submitted is subject to our privacy policy. You may opt out of receiving communications at any time.