Convoluting simulated image with real detector MTF
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Hi everyone,
I would like to include the effect of the detector response on transmission electron microscope images I am simulating. In principle, I understand that the simulated image has to be convolved with the detector modulation transfer function. To practically attain this I would have to firstly FFT the image and then multiply it by the MTF. After this I would have to perform an iFFT of the result to get an image in real space which has the MTF influence.
I am struggling to understand how I can convolve a 2D image with a 1D detector MTF.
Examples of the MTF and images I am simulating are attached.
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Philip Plummer
2021년 4월 18일
편집: Philip Plummer
2021년 4월 18일
A little late to help you probably, but I would just make assumptions regarding the MTF, specifically that it was symmetric with regards to both spatial frequency dimensions (fx and fy for discussion). I would then utilize Matlab's meshgrid function and generate a 2-D MTF to apply to my image.
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