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detection layer fixed

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This commit is contained in:
Joseph Redmon
2015-03-08 11:25:28 -07:00
parent 2313a8eb54
commit 655f636a42
9 changed files with 141 additions and 36 deletions
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64
src/captcha.c
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@ -42,6 +42,68 @@ void train_captcha(char *cfgfile, char *weightfile)
}
}
void decode_captcha(char *cfgfile, char *weightfile)
{
setbuf(stdout, NULL);
srand(time(0));
network net = parse_network_cfg(cfgfile);
set_batch_network(&net, 1);
if(weightfile){
load_weights(&net, weightfile);
}
char filename[256];
while(1){
printf("Enter filename: ");
fgets(filename, 256, stdin);
strtok(filename, "\n");
image im = load_image_color(filename, 60, 200);
scale_image(im, 1./255.);
float *X = im.data;
float *predictions = network_predict(net, X);
image out = float_to_image(60, 200, 3, predictions);
show_image(out, "decoded");
cvWaitKey(0);
free_image(im);
}
}
void encode_captcha(char *cfgfile, char *weightfile)
{
float avg_loss = -1;
srand(time(0));
char *base = basecfg(cfgfile);
printf("%s\n", base);
network net = parse_network_cfg(cfgfile);
if(weightfile){
load_weights(&net, weightfile);
}
printf("Learning Rate: %g, Momentum: %g, Decay: %g\n", net.learning_rate, net.momentum, net.decay);
int imgs = 1024;
int i = net.seen/imgs;
list *plist = get_paths("/data/captcha/encode.list");
char **paths = (char **)list_to_array(plist);
printf("%d\n", plist->size);
clock_t time;
while(1){
++i;
time=clock();
data train = load_data_captcha_encode(paths, imgs, plist->size, 60, 200);
scale_data_rows(train, 1./255);
printf("Loaded: %lf seconds\n", sec(clock()-time));
time=clock();
float loss = train_network(net, train);
net.seen += imgs;
if(avg_loss == -1) avg_loss = loss;
avg_loss = avg_loss*.9 + loss*.1;
printf("%d: %f, %f avg, %lf seconds, %d images\n", i, loss, avg_loss, sec(clock()-time), net.seen);
free_matrix(train.X);
if(i%100==0){
char buff[256];
sprintf(buff, "/home/pjreddie/imagenet_backup/%s_%d.weights",base, i);
save_weights(net, buff);
}
}
}
void validate_captcha(char *cfgfile, char *weightfile)
{
@ -115,6 +177,8 @@ void run_captcha(int argc, char **argv)
char *weights = (argc > 4) ? argv[4] : 0;
if(0==strcmp(argv[2], "test")) test_captcha(cfg, weights);
else if(0==strcmp(argv[2], "train")) train_captcha(cfg, weights);
else if(0==strcmp(argv[2], "encode")) encode_captcha(cfg, weights);
else if(0==strcmp(argv[2], "decode")) decode_captcha(cfg, weights);
else if(0==strcmp(argv[2], "valid")) validate_captcha(cfg, weights);
}