Quick Script to dump out images and annotations from the COFW dataset

Convert COFW dataset

## http://www.vision.caltech.edu/xpburgos/ICCV13/

output_dets_f = './dets-COFW-train.txt'
image_root = './COFW-train-';
load('COFW_train.mat');    
imgs = IsTr;
bboxes = bboxesTr;
lms = phisTr;
 
% output_dets_f = './dets-COFW-test.txt'
% image_root = './COFW-test-';
% load('COFW_test.mat');    
% imgs = IsT;
% bboxes = bboxesT;
% lms = phisT;

fp_dets = fopen(output_dets_f, 'w');
num_images = size(imgs,1);
num_lms = 29
for n=1:num_images
    img = imgs{n};
    image_p = sprintf('%s%04d.jpg', image_root, n);
    imwrite(img, image_p);
    fprintf(fp_dets, '%s\n1\n%d %d %d %d 1\n', image_p, bboxes(n,1), bboxes(n,2), bboxes(n,3), bboxes(n,4));

    lms_p = sprintf('%s%04d.lms', image_root, n);
    fp_lms = fopen(lms_p, 'w');
    for l=1:num_lms
        fprintf(fp_lms, '%f %f\n', lms(n,l*2-1), lms(n,l*2));
    end
    fclose(fp_lms);
    
    occ_p = sprintf('%s%04d.occ', image_root, n);
    fp_occ = fopen(occ_p, 'w');
    for l=1:num_lms
        fprintf(fp_occ, '%d\n', lms(n,num_lms*2+l));
    end
    fclose(fp_occ);    
end

fclose(fp_dets);