Brace indexing is not supported for variables of this type.

Hi,

Can anyone guide me, how to correct this error please. Below is the code.

Code:

imgFile = dir('*.jpg') ; 
imageNames = length(imgFile) 
outputVideo = VideoWriter('test.avi');
outputVideo.FrameRate = 2;
open(outputVideo)

for ii = 1:length(imageNames)
   img = imread(imageNames{ii});
   writeVideo(outputVideo,img)
end

close(outputVideo)

Error:

Brace indexing is not supported for variables of this type.

Error in ImaVid_Seq (line 12)

img = imread(imageNames{ii});

Answer 1

[Matt J]

imageNames = {imgFile.name}

[muhammad choudhry]

Hi Matt,

It did not resolved the problem. I have 1 to 169 images with name exp_1 till exp_179 but this change in the code not reading the images in sequence, as you can see below. What can I do to make it read images in sequence.

Columns 169 through 174

{'exp_9.jpg'} {'exp_90.jpg'} {'exp_91.jpg'} {'exp_92.jpg'} {'exp_93.jpg'} {'exp_94.jpg'}

[Matt J]

This should do it.

imageNames=cellstr("exp_" +(1:179)+".jpg")

[muhammad choudhry]

classsssssss! thanks alot. is there a document, where i can learn this sort of technique ? rather to use cell string, parenthesis or curly brackets.

[Matt J]

There is indeed,

https://www.mathworks.com/help/matlab/characters-and-strings.html

[muhammad choudhry]

Thanks alot!