How to get images of specified width and height/ resize them to specified width and height?

Question

Prashant Pathak 2022-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/1680504-how-to-get-images-of-specified-width-and-height-resize-them-to-specified-width-and-height

评论： Image Analyst 2022-3-26

I am processing a large data set and want to prepare an animation out of it. But the images have different frame sizes, like: 2850 x 780; 2803 x780; 2849 x 780?

Is there any function avaiable to specify the frame size?

Thanks in advance.

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Answer 1

Simon Chan 2022-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/1680504-how-to-get-images-of-specified-width-and-height-resize-them-to-specified-width-and-height#answer_926819

Use function imresize

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Prashant Pathak 2022-3-25

It does not have option for specifying the size.

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Answer 2

Image Analyst 2022-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/1680504-how-to-get-images-of-specified-width-and-height-resize-them-to-specified-width-and-height#answer_926864

在 MATLAB Online 中打开

Try imresize()

desiredRows = 512;
desiredColumns = 1000;
resizedImage = imresize(originalImage, [desiredRows, desiredColumns]);
% double check
[rows, columns, numberOfColorChannels] = size(resizedImage)

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Image Analyst 2022-3-25

编辑：Image Analyst 2022-3-25

What does that mean? I didn't compute row and column. And even if your images are only one pixel (1 row and 1 column), imresize() should work. Or if you want desiredRows to be 1, and desiredColumns to be 1, it should still work. Explain using a lot more words this time, because I already know your images are of different sized -- you said that already.