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Topic: How to do the subpixel shift for of an original image multiple times with different values for each time.
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Chandra Shaker Balure

Posts: 2
Registered: 1/27/14
How to do the subpixel shift for of an original image multiple times with different values for each time.
Posted: Jan 27, 2014 4:48 AM
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Doubt: How to do the subpixel shift for of an original image multiple times with different values for each time.

Background: Lets say i have a gray image of 256x256 (called LR image), and i want to create a super-resolution of this LR image to 512x512 (called HR image).
As, in most of the super resolution algorithm, we try to generate multiple LR image with multiple xshift and yshift values which happens to be the subpixel values (<1). Now using these multiple LRs, we try to get the HR using some kind of interpolation methods.

I am looking to do the xshift and yshift, say (0.5, 0.25) of an original image to generate first LR image.
Once i get this, i can create multiple such shifts with different values of xshift and yshift.



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