Loading multiple images in MATLAB

by

If you know the name of the directory they are in, or if you cd to that directory, then use dir to get the list of image names.

Now it is simply a for loop to load in the images. Store the images in a cell array. For example…

D = dir('*.jpg');
imcell = cell(1,numel(D));
for i = 1:numel(D)
  imcell{i} = imread(D(i).name);
end

BEWARE that these 100 images will take up too much memory. For example, a single 1Kx1K image will require 3 megabytes to store, if it is uint8 RGB values. This may not seem like a huge amount.

But then 100 of these images will require 300 MB of RAM. The real issue comes about if your operations on these images turn them into doubles, then they will now take up 2.4 GIGAbytes of memory. This will quickly eat up the amount of RAM you have, especially if you are not using a 64 bit version of MATLAB.

More Related Contents:

  1. To remove blood vessel [closed]
  2. how to get a single feature vector from SIFT descriptor [closed]
  3. How can I convert an RGB image to grayscale but keep one color?
  4. How to make the blackboard text appear clearer using MATLAB?
  5. Image rotation by Matlab without using imrotate
  6. Nearest-neighbor interpolation algorithm in MATLAB
  7. character reconstruction and filling for OCR
  8. How to divide an image into blocks in MATLAB?
  9. resizing 3D matrix (image) in MATLAB
  10. Align already captured rgb and depth images
  11. Is there a substitute for blockproc in Matlab?
  12. Matlab Template Matching Using FFT
  13. Explanation of the Histogram Equalization function in MATLAB [closed]
  14. How do I edit the axes of an image in MATLAB to reverse the direction?
  15. imresize – trying to understand the bicubic interpolation
  16. Matlab imshow omit NaN
  17. Content-Based Image Retrieval and Precision-Recall graphs using Color Histograms in MATLAB
  18. How to change an image from Cartesian to Polar coordinates in Matlab?
  19. Fitting largest circle in free area in image with distributed particle
  20. Select largest object in an image
  21. Matlab: How to bend line in image
  22. Plotting logarithmic values in separate graphs [closed]
  23. MATLAB is running out of memory but it should not be
  24. Matrix “Zigzag” Reordering
  25. Absolute error of ODE45 and Runge-Kutta methods compared with analytical solution
  26. MatLab accumarray unexpectedly changing ordering
  27. Is there a way to see the source of a pcode file (.p) in MATLAB?
  28. Iterating through struct fieldnames in MATLAB
  29. Using OpenGL in Matlab to get depth buffer
  30. MATLAB linked list

Leave a Comment