Pleeeez Help fast !!! About Matlab

1. Write a MATLAB function to do the following:
a. Read a colored “.bmp” image.
b. Convert the image to a gray scale image.
c. Apply the operation given in fig. 1 (shown below) to the gray scale image to increase the contrast.
d. Save the new image in a file.

2. Write a MATLAB function to do the following:
a. Read a gray scale image.
b. Apply an additive noise to the image.
c. Save the new image in a file.

3. Write a MATLAB function to do the following: ( file names stand for any files with these names not special ones )
a. Read “cameraman.tif” image.
b. Compute co-occurrence matrix according to the relation “Pixel and its south”.
c. Compute the contrast according to the formula :
∑ ∑ Cr(i,j)[Ir(i)-Ic(j)]² ; where summations are for i=1:m and j=1:n respectively

4. Write a MATLAB function to do the following:
a. Apply the following operation to the gray scale image of question 1 to increase its contrast. ( see fig. 2 below )
b. Use the function of question 3 to compute the contrast of the new image
resulting from part a. Verify that the contrast of the second image is greater than that of the first image.

5. Write a MATLAB function to do the following:
a. Read “circles.png” binary image.
b. Compute the RL code of that image by searching for white pixels.

ahmad_abdulghany said:

1. Write a MATLAB function to do the following:
a. Read a colored “.bmp” image.
b. Convert the image to a gray scale image.
c. Apply the operation given in fig. 1 (shown below) to the gray scale image to increase the contrast.
d. Save the new image in a file.

2. Write a MATLAB function to do the following:
a. Read a gray scale image.
b. Apply an additive noise to the image.
c. Save the new image in a file.

3. Write a MATLAB function to do the following:
a. Read “cameraman.tif” image.
b. Compute co-occurrence matrix according to the relation “Pixel and its south”.
c. Compute the contrast according to the formula :

4. Write a MATLAB function to do the following:
a. Apply the following operation to the gray scale image of question 1 to increase its contrast. ( see fig. 2 below )
b. Use the function of question 1 to compute the contrast of the new image
resulting from part a. Verify that the contrast of the second image is greater than that of the first image.

5. Write a MATLAB function to do the following:
a. Read “circles.png” binary image.
b. Compute the RL code of that image by searching for white pixels.

Click to expand...

So, what you need? Writing some matlab code or you need some information on how to write it?

lifanjiang said:

So, what you need? Writing some matlab code or you need some information on how to write it?

Click to expand...

Sorry , i had edited my topic as it contained some errors.. read it again
then , i had any help .. either matlab code or information .. but i suggest ready matlab code ...

and please try to be fast as possible !!!

many thanks

Sounds like you have homework due, and you copied the questions here without even providing the input files.
Please say it isn't so!!

echo47 said:

Sounds like you have homework due, and you copied the questions here without even providing the input files.
Please say it isn't so!!

Click to expand...

:arrow: Yes, it is a summer training course home work that i have to deliver although i didn't attend first two lectures ( this is thier homework )

:idea: About input files, they are any files with these names, i.e. no special input files but you can use any files with the specified characterestics binary, grayscale, ...etc.

I hope you stop attacking me and try to help... It is really urgent for me ...

Many thanks to you all dears ..

Your Brother Ahmad ..