www.gusucode.com > images 案例代码 matlab源码程序 > images/ComputeIntegralImageWithRotatedOrientationExample.m
%% Compute Integral Image with Rotated Orientation % %% % Create sample image. % Copyright 2015 The MathWorks, Inc. I = magic(5) % Define rotated rectangular region as [x, y, width, height] where x, y % denote the indices of the top corner of the rectangle. Width and height % are along 45 degree lines from the top corner. [x, y, w, h] = deal(3, 1, 3, 2); %% % Create integral image. J = integralImage(I, 'rotated'); %% % Compute the sum over the region using the integral image. regionSum = J(y+w+h,x+w-h+1) + J(y,x+1) - J(y+h,x-h+1) - J(y+w,x+w+1);