# REMOVING NOISE FROM IMAGE

02 Sep 14

Sir,

Can you please provide me matlab program to remove noise from image.

Thank you.

04 Sep 14

https://www.pantechsolutions.net/blog/implementation-of-median-filter-in-colour-image/

the example above will give you some insights to implement in colour image.

J = imnoise(I,'salt & pepper',0.02);
K = medfilt2(J);
figure, imshow(J), figure, imshow(K)

09 Oct 14

Hi sir, this is Ammahi presently doing my BE. I am doing project on Recursion algorithm for noise removal in images....I thoroughly gone through the ieee paper but getting lot of errors when i wrote the matlab code. Please help me to write the code.
I am providing the link of paper.

www.iaeng.org/publication/WCECS2011/WCECS2011_pp67-71.pdf

A. Intelligent Recursive Algorithm (IRA)
_____________________________________________
Input – Noisy Image h
_______________________________________________
Step 1: Compute X
for every pixel repeat steps from 2 to 7
Step 2: Initialize w = 3
Step 3: If X(i,j) ≠ Impulse pixel
goto step 7
Step 4: Δi,j = { h(i1,j1) | i-(w-1)/2 ≤ i1 ≤ i+(w-1)/2,
j-(w-1)/2 ≤ j1 ≤ j+(w-1)/2}
b=no. of black pixels in the window
w=no. of white pixels in the window
Step 5: If Δi,j ≠ NULL
p(i,j) = mean(Δi,j)
d(i,j) = | h(i,j) – p(i,j) |
else if (w < wmax)
w=w+2
goto step 4
else
if (b>w)
h(i,j)=0
else
h(i,j)=255
Step 7: Goto next pixel
Step 8: Calculate threshold t, from detailed coefficient
matrix d
for every pixel
Step 9: If (d(i,j)>t)
h(i,j)=p(i,j)

09 Oct 14

Hello ammayai

we could definitely help to debug the code.But you have to start writing the code.

for basic syntax

http://www.slideshare.net/pantechsolutions/getting-started-with-image-processing-using-matlab

let me know if i could be of any help

02 Jan 15

can u please provide me matlab code for ezw,spiht compression algorithms for comparison purpose.

06 Jan 15