Read Image sequences in order

Question

Nataliya on 18 Oct 2015

Answered: Image Analyst on 19 Oct 2015

Hello everyone, I am trying to read the image sequences. Images are named as Img_1, Img_2,....,Img_10. I am reading the images one by one as follows:

    m=1;
    while(m <= length(Images))
    Frame1 = [Imgdir '/' Images(m).name];
    curr_frame1=imread(Frame1);
    m=m+1;
    end

But It reads Img_10 first and then Img_1. Why? I want to read the image in sequence.Please help.

Answer 1

Martin Schätz on 18 Oct 2015

Hi, there is no need to use while (however your code should work), for is more appropriate in this case.

    for m=1:length(Images)
       Frame1 = [Imgdir '/' Images(m).name];
       curr_frame1=imread(Frame1);
    end

It depends how your structure Images is designed. Under Images(1).name could be Img_10 and not Img_1. So to be absolutely shure, try this:

    for m=1:length(Images)
       Frame1 = [Imgdir '/' 'Img_' num2str(m)];
       curr_frame1=imread(Frame1);
    end

Answer 2

Image Analyst on 19 Oct 2015