Image is too big to fit on screen

Question

Ghazal Hnr 2018-1-29

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/379620-image-is-too-big-to-fit-on-screen

评论： Image Analyst 2022-12-12

Hi,

I have some uint8 RGB images. But when I try to display these images by using imshow, I get a warning saying that image is too big to fit on screen, displaying at 67%.

And here is a part of my code:

%%Reading image
filename = strcat(di,srcFiles(8).name);       
img = imread(filename);
figure
imshow(img)
title('Original Image')
%%Green channel extraction
img_g = img(:,:,2);
figure
imshow(img_g)
title('Green Channel')

Any suggestion would help. Thanks

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Answer 1

Jan 2018-1-29

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https://ww2.mathworks.cn/matlabcentral/answers/379620-image-is-too-big-to-fit-on-screen#answer_302389

编辑：Jan 2018-1-29

在 MATLAB Online 中打开

This is not an error, but a warning. You should be reminded, that the displayed image contains less details as the original data. But you probably know this, when you open a high-resolution image. You can use image instead of imshow to avoid this warning. Alternatively specify the 'InitialMagnification':

figure;
imshow(img_g, 'InitialMagnification', 'fit')

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Answer 2

Image Analyst 2018-1-29

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https://ww2.mathworks.cn/matlabcentral/answers/379620-image-is-too-big-to-fit-on-screen#answer_302387

zoom_image.m

You have not asked a question. So your image is to big to fit on the screen and MATLAB shrinks the image to fit. Is that a problem for you? See my attached zooming demo.

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bruno 2022-12-12

Hello I have a ecg data frm MIT BIH, Im planning to convert mat file which is 1D to an 2D image. but im not getting how. I never worked with such things. I need help.

Image Analyst 2022-12-12

@Javeria I suggest you start a new question. Explain what your 2-D image would be. Would it be a screenshot of the ecg data plotted? Would it be a spectrogram of the data? Would it be the data reshaped into a rectangle?

If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:

TUTORIAL: How to ask a question (on Answers) and get a fast answer

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