How can I change imge dimensions?

Hi, everyone!

I have a database of images (the number of images may vary) with different dimensions, need to change thier width/high (resize whole image but not crop it) to same one, then save the new images in a separate folder.

I have tried the im.resize function, but the image is cropped and information lost. It is necessary that the integrity of the image does not change, but only its parameters.

Thanks

[Walter Roberson]

?? imresize never crops.

imresize can give you a result that looks distorted, if you do not preserve the aspect ratio, but it will not crop.

[victor]

Simply have tried this:

I = imread('key_orig.jpg');
K = imresize(I,[100 150]);
figure, imshow(K)
imwrite (K,'resized.jpg')

and it works but how to apply it to all images in a folder?

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

[victor]

Have done this:

for k = 1:9
    % Create an image filename, and read it in to a variable called imageData.
    jpgFileName = strcat('book-0', num2str(k), '.jpg');
    if exist(jpgFileName, 'file')
      imageData = imread(jpgFileName);
          resize = imresize(imageData,[100 150]);
          imwrite (resize,'resize.jpg');
    else
      fprintf('File %s does not exist.\n', jpgFileName);
    end
    
    
  end

how can I save them one by one?

[Walter Roberson]

outfilename = strcat('resize_', jpgFileName);
imrewrite(resize, outfilename);

[victor]

Thank you