Interpolation in an image at specific query points
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I am trying to interpolate an image of size 120x160 at specific query points. say R = [ r1,r2,r3,....rn]; C = [ c1,c2,c3,....cn]. I would like to interpolate the values at (r1,c1), (r2,c2)...(rn,cn) from the original image. I see that interp2, griddata,scatteredInterpolant, griddedInterpolant, seem to need a meshgrid of query points. Is there a way to estimate the interpolation at just these point (r,c)? If not, how do I convert such scattered points into a meshgrid?
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