MATLAB: How to proove the given input image is of high resolution or low resolution

Image Processing Toolboxresolution

On seeing a picture, we can predict approximately the resolution is high or low. But, how to check it in matlab

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If the only information you have is the image content, then it is not possible to tell the difference between high resolution of a small area, compared to low resolution of a large area.

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MATLAB: How make low resolution image to become high resolution?

The second argument can be the scale with which you want to resize the image or the size to which you want it to be resized. Also, you can mention the interpolation method if you are scaling up the resolution

For example K = imresize(I,[100 150]) Resizes the image to 100 rows and 150 columns

J = imresize(I,1.25); Scales up you present image to 1.25 times

L = imresize(I,1.5,'bilinear'); Scales the image by 1.5 times by using bilinear interpolation method

MATLAB: How to extract high resolution from a low resolution image

This is a subjective topic, imresize increase the size of the images, as already said by @KSSV Sir you can proceed that. The resolutions depend on the number of spatial coordinates (PPI) and bit length per pixel.

higher_image=imresize(input_image,scaling_factor)

What you exactly want? Spatial resolution?

For specific, you can look at interpolation too. Please note that by this approach you can increase the number of pixels only, it doesn't increase the actual information of the real image.

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MATLAB: How make low resolution image to become high resolution?

MATLAB: How to extract high resolution from a low resolution image

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