Brightness and Contrast in Digital Image Processing.

Brightness: Brightness of an image is defined by the higher grey-scale values. Such as, if an image has grey-scale values like 175,200,255 etc, it can be said that brightness of the image is high. That is, the higher the grey-scale value the higher the brightness of an image. Thus brightness of an image is the higher values of the grey-scale levels.



Contrast: Contrast control determines the luminance (proportional to intensity) produces for white, with intermediate values toward black being scaled appropriately. Thus when changing contrast one is actually making a lower value to a lower one and higher value to a much higher one.

What is histogram? How low brightness and high brightness images can be identified from a histogram? DIP

Author: Tanmay Chakrabarty

Tanmay Chakrabarty is a former CSE student, currently working as a Senior Software Engineer with 5+ years of experience in the field of Web Application development in PHP+MySQL platform with strong skills in Javascript, JQuery, JQuery UI and CSS. He tries to write notes every week but fails due to heavy loads of duty.

Recommended Recommends

Comments

Contact Us