multiple snapshots into binarised

Question

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Hello all,

I have 500 snapshots from a video (called img001, img002,...,img500) I want to creat a loop for:

-read each image

-binarise each image

at the end, I will have 500 matrices because of the binarised images.

I have tried several codes provided by other users, but they did not work out for my case,

Regards

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Answer 1

Cam Salzberger 2017-10-19

0 个投票

Hello Carlos,

It helps if you post what you tried already, and what behavior/errors you were seeing.

I can recommend that you:

Use dir to get the filenames in the desired directory.
Create your storage container for the image matrices. If you know that all images are the same size, you could use a 3-D array, storing each binary image in one layer. If not, you could use a cell array. If you want to store other information with the images, you could use a struct array.
Loop through each filename, and use imread to get the image data.
Use imbinarize to binarize the image. If you have an older version of MATLAB (R2015b or earlier), you can use im2bw, possibly with graythresh.
Store the binarized image in your data structure (array, cell array, struct array).

Hope this helps to get you started.

-Cam

Carlos_conde 2017-10-19

thanks for your answer. Eventually I found the mistake in the code and it is working properly. Thanks