Create Zoom blurring effect

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Mojtaba Zarei
Mojtaba Zarei 2021-3-18
回答： Kiran Felix Robert 2021-3-22
Hi,
I am going to model the zoom blur effect having the Point Spread (PSF) function in the XY directions and the speed of displacement of the image. I know there is a fspecial('motion',len,deg) function that returns the kernel when the image moves in the x and y direction, but I am interested in the motion in the z-direction. Can anybody help me with how I can make such kernels? The XYZ coordinates are depicted in the attached picture

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回答（1 个）

Kiran Felix Robert
Kiran Felix Robert 2021-3-22
Hi Mojtaba,
The Movement in z-direction can be modelled by using interpolations feature. This can be achieved by imresize, or by setting a magnification feature in imshow as explained and demonstrate in this MathWorks blog page.
Also refer this documentation for examples using imresize.

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