EyePairBigDetector = vision.CascadeObjectDetector('EyePairBig');
I = imread('body_face_man.png');
bboxBody = EyePairBigDetector(I);
I = insertObjectAnnotation(I,'rectangle',bboxBody,'EyePairBig');
% Bounding Boxの位置は[x, y, width, height] ⇒ x座標に幅の1/6,4/6を足し、幅を1/6にする
lefteye = [bboxBody(1)+bboxBody(3)*1/6 bboxBody(2) bboxBody(3)/6 bboxBody(4)];
righteye = [bboxBody(1)+bboxBody(3)*4/6 bboxBody(2) bboxBody(3)/6 bboxBody(4)];
I = insertShape(I,'rectangle', lefteye,'Color','red','LineWidth',3);
I = insertShape(I,'rectangle',righteye,'Color','red','LineWidth',3);
imshow(I)