Noise & Shading Correction of an Image using Matlab

Status
Not open for further replies.

IndiJones

Full Member level 2
Joined
Aug 13, 2001
Messages
132
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
786
I have three images. One is the image of the object with noise, one
is the image of only the noise, i.e, a black image and the other is
the shading image with noise, i.e, a bright white image. How can I
use these images to get a corrected picture of the object? Should I
use "imsubtract(object, noise) & imsubtract(shading, noise)" for
noise reduction and "imadd(object without noise, shading without
noise)" for shading correction? If I do so, will this be the final
corrected image?

Thanks in advance!
 

Is the noise an estimated quantity or you are using the same value you have used for simulation. The result of subtraction of noise depends only on how you estimated the noise. If the noise is white. You cant do anything. (of course LPF will help -- which is non parametric)
Hope this helps
B R M
 

Hi brmadhukar! Thanks for your response! The thing that I'm doing has nothing to do with simulation. I just want to remove the dark noise from the captured image and utilize the white shading. I was just wondering if subtracting the noise from the image (pixel by pixel) and adding the noise free shading (pixel by pixel) will do the job.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…