how to save the image as a RGB image???

This is the code for median filtering on RGB images. I wanted to save only the resorted image into a new folder. how do i do that?? can anyone help me out to save that image..

myFolder='E:\MRP\accuracy\class1';
m=input('Type the Number of Images to Process:');
for k = 1:m
jpgFilename = sprintf('%d.jpg', k);
fullFileName = fullfile(myFolder, jpgFilename);
rgbImage = imread(fullFileName);

% Get the dimensions of the image.  numberOfColorBands should be = 3.
[rows columns numberOfColorBands] = size(rgbImage);

% Display the original color image.
figure,imshow(rgbImage);
title('Original color Image', 'FontSize', fontSize);

% Enlarge figure to full screen.
set(gcf, 'Position', get(0,'Screensize')); 

% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);

% Display the individual red, green, and blue color channels.
figure,imshow(redChannel);
title('Red Channel', 'FontSize', fontSize);
figure,imshow(greenChannel);
title('Green Channel', 'FontSize', fontSize);
figure,imshow(blueChannel);
title('Blue Channel', 'FontSize', fontSize);

% Generate a noisy image.  This has salt and pepper noise independently on
% each color channel so the noise may be colored.
noisyRGB = imnoise(rgbImage,'salt & pepper', 0.05);
figure,imshow(noisyRGB);
title('Image with Salt and Pepper Noise', 'FontSize', fontSize);

% Extract the individual red, green, and blue color channels.
redChannel = noisyRGB(:, :, 1);
greenChannel = noisyRGB(:, :, 2);
blueChannel = noisyRGB(:, :, 3);

% Display the noisy channel images.
figure,imshow(redChannel);
title('Noisy Red Channel', 'FontSize', fontSize);
figure,imshow(greenChannel);
title('Noisy Green Channel', 'FontSize', fontSize);
figure,imshow(blueChannel);
title('Noisy Blue Channel', 'FontSize', fontSize);

% Median Filter the channels:
redMF = medfilt2(redChannel, [3 3]);
greenMF = medfilt2(greenChannel, [3 3]);
blueMF = medfilt2(blueChannel, [3 3]);

   % Find the noise in the red.
  noiseImage = (redChannel == 0 | redChannel == 255);

% Get rid of the noise in the red by replacing with median.
noiseFreeRed = redChannel;
noiseFreeRed(noiseImage) = redMF(noiseImage);

% Find the noise in the green.
noiseImage = (greenChannel == 0 | greenChannel == 255);

% Get rid of the noise in the green by replacing with median.
noiseFreeGreen = greenChannel;
noiseFreeGreen(noiseImage) = greenMF(noiseImage);

% Find the noise in the blue.
noiseImage = (blueChannel == 0 | blueChannel == 255);

% Get rid of the noise in the blue by replacing with median.
noiseFreeBlue = blueChannel;
noiseFreeBlue(noiseImage) = blueMF(noiseImage);

% Reconstruct the noise free RGB image
rgbFixed = cat(3, noiseFreeRed, noiseFreeGreen, noiseFreeBlue);
figure,imshow(rgbFixed);
title('Restored Image', 'FontSize', fontSize);
end

Answer 1

[Image Analyst]

fullFileName = fullfile(yourFolder, 'fixed image.PNG');
imwrite(rgbFixed, fullFileName);

yourFolder is whatever folder you want to store your images in. It is a character string. For example

yourFolder  = 'E:\MRP\accuracy\class2';

or

yourFolder  = 'E:\MRP\accuracy\class1\output';
if ~exist(yourFolder, 'dir');
  mkdir(yourFolder);
end

[sudha]

stil nt working..

[Image Analyst]

What error message do you get?

[sudha]

The problem is,only the 1st image is getting stored..

[Walter Roberson]

Your Question specified "wanted to save only the resorted image into a new folder." so you should only have one location in the code that saves images and the image saved there is what would be stored, not the "1st image".

Or are you asking how to be able to do multiple "restores" in a row, retrieving earlier and earlier images?

[sudha]

In "class1" folder i hve 3 images..filtering is happening on those 3 images and m getting the output also..so i wanted to save only the result of 3 images..in tat, only one image is getting saved..other 2 are not getting saved.

[Walter Roberson]

Okay, what exactly does your "save" code look like at the moment? And is it inside the "for k" loop? How do you want the file name for the "restored" image to relate to the filename for the original image? For example if the original image was XYZ98301KB.jpg, do you want the restored image saved as XYZ98301KB_restored.jpg ?

[sudha]

This is the code for saving..i wanted to save in "output" folder like 1,2..etc. ya, i hve put tis code inside the "for k" loop.

 yourFolder  = 'E:\MRP\accuracy\class1\output';

if ~exist(yourFolder, 'dir');
   mkdir(yourFolder);
end
  fullFileName = fullfile(yourFolder, '1.JPG');
  imwrite(rgbFixed, fullFileName);

[Image Analyst]

You haven't looked at the FAQ, http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F, yet, have you? It shows you how you can use sprintf() to create the base filename.

Answer 2

[Youssef Khmou]

hi sudha,

finish your code by :

 filename='E:\MRP\accuracy\class1\rgbFixed.jpg' % as jpg file
 % or specifiy the directory you want 3 
 imwrite(rgbFixed,filename);

[sudha]

actually m reading the image from class1 folder. if i add "rgbFixed.jpg" then its nt reading the images itself.

[Youssef Khmou]

give IT another name :

filename='E:\MRP\accuracy\class1\ANYNAMEYOUWANT.jpg';
imwrite(rgbFixed,filename);

[sudha]

this is the error m getting

??? Undefined function or variable 'rgbFixed'.

Error in ==> Untitled4 at 14 imwrite(rgbFixed,filename);

[Walter Roberson]

Your posted code has

% Reconstruct the noise free RGB image
rgbFixed = cat(3, noiseFreeRed, noiseFreeGreen, noiseFreeBlue);

That is the code that defines the rgbFixed variable, which is the variable that holds the restored image.

That code is, though, far past line 14, which suggests you are now trying to write out something other than the restored image that you asked for assistance with. If you are going to try to do something other than what you asked for instructions on, you are going to need to learn how to adapt code examples instead of expecting that they will work exactly as given by the volunteers.

Answer 3

[nkumar]

paste the following lines at starting of your code

pickind='jpg';

f1=fullfile('C:','framesnew');
if (exist(f1) == 0)
   mkdir (f1);
 end

paste the following line at last line before end statement

strtemp=strcat('C:\framesnew\',int2str(k),'.',pickind);
  imwrite(rgbFixed,strtemp);