% Computes motion compensated image using the given motion vectors%% Input%   imgI : The reference image %   motionVect : The motion vectors%   mbSize : Size of the macroblock%% Ouput%   imgComp : The motion compensated image%% Written by Aroh Barjatyafunction imgComp = motionComp(imgI, motionVect, mbSize)[row col] = size(imgI);% we start off from the top left of the image% we will walk in steps of mbSize% for every marcoblock that we look at we will read the motion vector% and put that macroblock from refernce image in the compensated imagembCount = 1;for i = 1:mbSize:row-mbSize+1    for j = 1:mbSize:col-mbSize+1                % dy is row(vertical) index        % dx is col(horizontal) index        % this means we are scanning in order                dy = motionVect(1,mbCount);        dx = motionVect(2,mbCount);        refBlkVer = i + dy;        refBlkHor = j + dx;        imageComp(i:i+mbSize-1,j:j+mbSize-1) = imgI(refBlkVer:refBlkVer+mbSize-1, refBlkHor:refBlkHor+mbSize-1);            mbCount = mbCount + 1;    endendimgComp = imageComp;