Image is too big to fit on screen

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

Answer 1

[Jan]

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')

Answer 2

[Image Analyst]

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.

[bruno]

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]

@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

Answer 3

[Reza Dadar]

you can also use image magnification in percent in the end like figure; imshow(img_g, 'InitialMagnification', 8)

which means that it is 8% of the original size 100%