MATLAB: Why i cannot display an image

wavelet

I have done wavedec2 on an image and extracted the approximate coefficients using appcoef2.I want to display the approximate image but its showing total white.why is it so. how to get the image?

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use imagesc() or use imshow() with [] as the second parameter.

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MATLAB: To display an image

Try this:

imshow(yourImage, []); % Make sure you use the [].

It should work with everything (all 2D images): uint8,uint16, single, double, and RGB. The [] will take the min of the image and map it to 0 and the max and map it to 255 so that you will see the entire range of your image. If you don't do that, and the image is uint8 then it defaults to 0-255 and if your image is, say, all less than 5 gray levels, or a floating point image with really small values, then you won't see anything - it will be too dark.

MATLAB: Imshow() not working , try a lot times

Read this once again:

You have a custom file named image.m please move it from MATLAB's path or rename it.

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MATLAB: To display an image

MATLAB: Imshow() not working , try a lot times

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