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How MTF blurs an image?

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ylcnt
ylcnt 2021-2-13
评论： Image Analyst 2021-2-17
I would like to see how MTF blurs an image for my academic works. I will load the original image and I will have an MTF value (for example MTF=0.7), then I would like to have blurred image that is the result of the original image and MTF interaction. I appreciate it if anyone could give me a script or method suggestion.
Thanks in advance,

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Image Analyst
Image Analyst 2021-2-14
Use fspecial() to create Gaussian PSF's, which is just the spatial domain representation of the MTF. Then pass the PSF into imfilter().
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ylcnt
ylcnt 2021-2-16
编辑：ylcnt 2021-2-16
Thank you very much for your contribution. I tried to go further but unfortunately I still could't form the structure.
Which parameters will be the input of the h = fspecial('gaussian',hsize,sigma) filter? What is hsize and sigma according to your script?
Then where will I use the obtained MTF value as an amplitude? Here MTF isn't only MTFoptic. It is MTFoptic*MTFatmosphere. That's my difficulty!
And then how to use B = imfilter(A,h,options,...)?
I am really very sory for taking your time.
Image Analyst
Image Analyst 2021-2-17
The MTF is 1 at the zero frequency. You vary the sigma according to how much you want it to cut off the higher frequencies.

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