hello sir, how to get information of the image(imfinfo)

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tina jain 2015-3-19

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https://ww2.mathworks.cn/matlabcentral/answers/183946-hello-sir-how-to-get-information-of-the-image-imfinfo

评论： Guillaume 2015-3-19

I executed DWT and got the image(which i am attaching ) as a LL band(upperLeft)

imData=imread('lena256.bmp');
[rows, columns, numberOfColorChannels] = size(dwt1_imData);
r1 = int32(M/2);
c1 = int32(N/2);
r2 = r1+1;
c2 = c1+1;
upperLeft = dwt1_imData(1:r1, 1:c1);

Now I want to take the information of upperLeft image. As I read the imfinfo it needs file format. e.g k=imfinfo('lena.bmp');

how to apply imfinfo on upperLeft as its extension is not known.

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tina jain 2015-3-19

i want width, height and bitmap of the image file

Guillaume 2015-3-19

I must be misunderstanding something about your question, because the width of upperLeft is obviously c1, the height obviously r1, since you've defined it this way. The bitmap is upperLeft itself.

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