From ccde487525fc89a1d4bc3e1cf11a18971e8451c9 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@users.noreply.github.com>
Date: Sat, 11 Jul 2015 00:33:24 +0000
Subject: [PATCH] Create README.md
---
src/captcha.c | 80 ++++++++++++++++++++++++++++++++++++---
1 files changed, 73 insertions(+), 7 deletions(-)
diff --git a/src/captcha.c b/src/captcha.c
index c26db68..e369ffb 100644
--- a/src/captcha.c
+++ b/src/captcha.c
@@ -16,14 +16,14 @@
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/train.list");
+ list *plist = get_paths("/data/captcha/train.auto5");
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(paths, imgs, plist->size, 10, 60, 200);
+ data train = load_data_captcha(paths, imgs, plist->size, 10, 200, 60);
translate_data_rows(train, -128);
scale_data_rows(train, 1./128);
printf("Loaded: %lf seconds\n", sec(clock()-time));
@@ -34,7 +34,7 @@
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_data(train);
- if(i%100==0){
+ if(i%10==0){
char buff[256];
sprintf(buff, "/home/pjreddie/imagenet_backup/%s_%d.weights",base, i);
save_weights(net, buff);
@@ -42,6 +42,70 @@
}
}
+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, 300, 57);
+ scale_image(im, 1./255.);
+ float *X = im.data;
+ float *predictions = network_predict(net, X);
+ image out = float_to_image(300, 57, 1, predictions);
+ show_image(out, "decoded");
+ #ifdef OPENCV
+ cvWaitKey(0);
+ #endif
+ 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, 300, 57);
+ 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)
{
@@ -52,11 +116,11 @@
if(weightfile){
load_weights(&net, weightfile);
}
- int imgs = 1000;
int numchars = 37;
- list *plist = get_paths("/data/captcha/valid.base");
+ list *plist = get_paths("/data/captcha/solved.hard");
char **paths = (char **)list_to_array(plist);
- data valid = load_data_captcha(paths, imgs, 0, 10, 60, 200);
+ int imgs = plist->size;
+ data valid = load_data_captcha(paths, imgs, 0, 10, 200, 60);
translate_data_rows(valid, -128);
scale_data_rows(valid, 1./128);
matrix pred = network_predict_data(net, valid);
@@ -95,7 +159,7 @@
//printf("Enter filename: ");
fgets(filename, 256, stdin);
strtok(filename, "\n");
- image im = load_image_color(filename, 60, 200);
+ image im = load_image_color(filename, 200, 60);
translate_image(im, -128);
scale_image(im, 1/128.);
float *X = im.data;
@@ -115,6 +179,8 @@
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);
}
--
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