Transformation and Image Enhancement | Free Online Course | Alison

One Day Only Black Friday Sale: Get 30% OFF All Diplomas! Sale only on Friday, 27th November 2020

Claim My 30% Discount

Transformation and Image Enhancement

Learn about image transformation, properties of transformation and enhancement techniques in this free online course

Free Course
This free online transformation and image enhancement course is important for learners as they dive deeper into the world of digital image processing. The course explains the properties of Fourier Transformations along with fundamental differences between the different types of transformations. By the end of the course, you will be much better equipped with knowledge on image transformation and image enhancement techniques. Get started, today.
  • Duration

    5-6 Hours
  • Assessment

  • Certification

  • Responsive

  • Publisher






View course modules


This course begins by introducing you to the properties of Discrete Fourier Transformation and those of Fourier Transformation. You will learn how Fast Fourier Transform is implemented, understand the principle of operation of Discrete Cosine Transform(DCT) along with the fundamental difference between K-L Transform and other transformations. You will see an illustration of the rotation property of the discrete Fourier Transformation and also learn the distributive along with scaling properties of Fourier Transformation.

The course then explains image enhancement techniques and the necessity of image enhancement operations. You will learn about contrast stretching as an image enhancement technique, its importance and the reasons that may warrant its use. You will also learn about transformation techniques related to histogram-based processing where you will understand the meaning of a histogram, image averaging and image subtraction.

Next, the course explains some implementation issues surrounding histogram equalization and specification, comparing the performance of both techniques. Then, you will learn about linear smoothing operation, non-linear operations and sharpening filter. Finally, you will understand the meaning of mask processing, image averaging and the types of frequency domain techniques. Start this course today, and learn valuable skills in image enhancement and transformation.

Start Course Now

Learning Outcomes

Upon successful completion of this course, you will be able to: 

  • Explain the Periodicity and Conjugate and Convolution properties of Discrete Fourier Transformation
  • Discuss the rotation, distributivity and scaling properties of Fourier Transformation
  • Explain how Fast Fourier Transform is implemented
  • Discuss the principle of operation of Discrete Cosine Transform(DCT)
  • Discuss the forms of spatial domain operations
  • Describe Contrast Stretching as an image enhancement technique
  • Explain the Power-Law Transformation
  • Define a histogram as it relates to digital image processing
  • Discuss the meaning of the Mask Processing Technique
  • Explain the image averaging or image smoothing operation


All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire an official Certificate, which is a great way to share your achievement with the world. Your Alison Certificate is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certificates for completed Certificate courses:

Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
Framed Certificate - a physical version of your officially branded and security-marked Certificate in a stylish frame, posted to you with FREE shipping

All Certificates are available to purchase through the Alison Shop. For more information on purchasing Alison Certificates, please visit our FAQs. If you decide not to purchase your Alison Certificate, you can still demonstrate your achievement by sharing your Learner Record or Learner Achievement Verification, both of which are accessible from your Dashboard. For more details on our Certificate pricing, please visit our Pricing Page.



    You have received a new notification

    Click here to view them all