Multiplying matrix to an greyscale image

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Seungyoon Woo
Seungyoon Woo 2021-3-27
回答： Image Analyst 2021-3-27
Hi guys! Nowadays I'm interested in image processing, and now studying about image transformation. So, I want to use some transforming matrix, such as rotating or enlarging.
So, I want to make write a function that multiply a given matrix to an image. I KNOW THERE IS A FUNCTION TO DO THAT but I just want to write a new one, without using other functions.
I think moving each pixels to new location is not a big deal, but I want to know how I can add interpolation features, like bilinear or nearest point. Especially the corner of image where I can use only one point to determine the greyscale of empty pixels. Thanks!
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DGM
DGM 2021-3-27
You can always open the existing tools and see what you can find out.
open imtransform
open tformarray
There may also be other private functions in the directories beneath matlabroot/toolbox/images/images/

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Image Analyst
Image Analyst 2021-3-27

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