Name
detectlefteyes — Find left eyes in the image.
detectrighteyes — Find right eyes in the image.
Calling Sequence
leyes = detectlefteyes(im)
reyes = detectrighteyes(im)
Parameters
- im
-
The input image, color or gray image.
- leyes, reyes
-
An Nx4 matrix. Each row of the matrix contains information about an teye position and size: [x,y,w,h]. (x,y) is the top-left corner coordinates of a rectangle contains an eye; w,h are width and height of the rectangle respectively.
Description
The function finds left/right eyes in an image.
The result of lefteye detection or righteye detection is not enough accuracy as the face detection; results of lefteye detection and righteye detection are quite similar in some case. In order to get proper results, it's better to apply lefteye detection and righteye detection functions to a upper half of a detected face image.
Examples
im = imread(SIVP_PATH+'/images/lena.png');
face = detectfaces(im);
rect = face*diag([1,1,1,0.7]);
subface = imcrop(im, rect);
leyes = detectlefteyes(subface);
[m,n] = size(leyes);
for i=1:m,
im = rectangle(im, leyes(i,:)+rect*diag([1,1,0,0]), [0,255,0]);
end;
imshow(im);
Authors
Shiqi Yu <shiqi.yu[at]gmail.com> |
Jia Wu <jiawu83[at]gmail.com> |
Bibliography
"Rapid Object Detection using a Boosted Cascade of Simple Features", Paul Viola and Michael J. Jones, IEEE CVPR, 2001.
"An Extended Set of Haar-like Features for Rapid Object Detection", Rainer Lienhart and Jochen Maydt, IEEE ICIP 2002, Vol. 1, pp. 900-903, Sep. 2002.
Availability
The latest version of SIVP can be found at
http://sivp.sf.net