[rows, columns] = size(yourImage);
midColumn = ceil(columns/2);
leftHalf = yourImage(:, 1:midColumn);
rightHalf = yourIMage(:, midColumn+1:end);
windowwindowSizeSzie = 11;
blurryLeft = imfilter(leftHalf, ones(windowSize)/windowSize^2);
blurryRight = imfilter(rightHalf, ones(windowSize)/windowSize^2);