Why the inbuild function used for bicubic interpolation results in different PSNR in MATLAB and OpenCV?

Helal Uddin Mullah @Helal_Mullah2

07 July 2018 0 2K Report

if we perform bicubic interpolation using matlab function:

[nrow, ncol] = 2*size(im_l);

im_b = imresize(im_l, [nrow, ncol], 'bicubic');

it shows PSNR =29.30 in MATLAB R2013a

resize(img, im_b, img.size()*2, 0, 0, INTER_CUBIC);

it shows PSNR 28.22 in visual studio 2010 and OpenCV 2.2.0

Can it be made equal?

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