How can i load my own data set of images ?

Hello everyone,

I'm working on cnn to apply deep learning algorithms on a dataset of pictures that i've created. But i couldn't load those images on matlab. Furthermore, if there is anyone working on cnn, i need to do object classification among them, does have any idea how to classification, train and test processes please help me. Thanks already.

[Image Analyst]

What's the problem? Did you try imread()?

[Sivakumaran Chandrasekaran]

http://in.mathworks.com/help/vision/examples/image-category-classification-using-bag-of-features.html

[Melih Ayhan]

Basically it works on mnist dataset; When im doing below

load mnist_uint8;

But when i'm trying to do this:

load my_dataset;

It says No such file or directory...

my_dataset is a folder and also contains two different folders which has 100 images. I'm trying to appyl cnn on those photos but i cant load the database on workplace. (i'm new on matlab, if this is a silly question, im sorry about it)

Thanks already :)

[Sakshi Sharma]

Hi, I am also doing the same but loading my own dataset of 25 images. Can you please guide me with whole process and code with the same, as I am assuming you had already done with this question solution.

Thanks!

Answer 1

[Image Analyst]

Maybe try the imageSet class http://www.mathworks.com/help/vision/ref/imageset-class.html

[Sivakumaran Chandrasekaran]

http://in.mathworks.com/help/vision/examples/image-category-classification-using-bag-of-features.html

[Melih Ayhan]

Basically it works on mnist dataset; When im doing below

load mnist_uint8;

But when i'm trying to do this:

load my_dataset;

It says No such file or directory...

my_dataset is a folder and also contains two different folders which has 100 images. I'm trying to appyl cnn on those photos but i cant load the database on workplace. (i'm new on matlab, if this is a silly question, im sorry about it)

Thanks already :)

[Image Analyst]

is my_dataset the actual name, or is it the name of a variable? Try it with and without quotes and see if it works:

load('my_dataset'); % If it's the actual  folder name

or

my_dataset = 'c:/whatever';
load(my_dataset);

but I don't think load works on a whole folder. Why don't you just pass in image names one at a time and use imread()?

grayImage = imread(fullFileName);

Or else use imageSet like I recommended:

folder = 'c:/whatever';
myImages = imageSet(folder);

[Melih Ayhan]

Thanks for the answer,

folder = 'c:/whatever';
myImages = imageSet(folder);

this one works

But i think i need to convert the whole folder into a *.mat file to apply my cnn. Do you know a way to do that ?

[Image Analyst]

Use code from the FAQ to open a sequence of files: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Then, in the middle of the loop, take whatever variables you want to save in .mat files and save them with a call to load().