Whats the significance of Image Normalisation???

Hello,

I'm working on my final year project in which I have captured a picture from a webcam. I'm trying to find the 'red component' of the image.

So I would like to know,

1)is normalizing the image prior to finding the redness a better idea or finding the redness directly from the image without the Normalizing?

2) Normalizing meaning eg:- R/sqrt(R^2+G^2+B^2) . I have followed this step for all the individual pixels.

Awaiting your reply.

Truly

TRK

Answer 1

[Jacob Mathew]

Hey Kishan,

Given your use case of finding the red component of the image, normalising the image before working on it will be helpful, as it can help boost the contrast between the color streams.

A common normalization technique to achieve this is histogram equilazation. You can refer to the following documentation to learn more about it:

https://www.mathworks.com/help/releases/r2024a/images/histogram-equalization.html