BATCH_SIZE,
replace=False)
batch_z = np.random.normal(-1.0, 1.0,
size=[BATCH_SIZE,
100]).astype(np.float32)
batch_y = train_annots[idx]
batch_paths = train_paths[idx]
batch_images = np.empty((BATCH_SIZE, SIZE, SIZE, 3),
dtype=np.float32)
bi = 0
for img_p in batch_paths:
image = misc.imread(img_p)
if CROP: image = data_ops.crop_center(image, 212, 212)
image = misc.imresize(image, (SIZE, SIZE, 3))
image = data_ops.normalize(image)
# randomly flip images left right or up down
r = random.random()
if r < 0.5: image = np.fliplr(image)
r = random.random()
if r < 0.5: image = np.flipud(image)
batch_images[bi, ...] = image
bi += 1
sess.run(D_train_op,
feed_dict={
z: batch_z,
y: batch_y,
real_images: batch_images,
mask: classes
while epoch_num < EPOCHS:
epoch_num = step / (train_len / BATCH_SIZE)
start = time.time()
idx = np.random.choice(np.arange(train_len), BATCH_SIZE, replace=False)
batch_paths = train_paths[idx]
batch_a_images = np.empty((BATCH_SIZE, 256, 256, 3), dtype=np.float32)
batch_b_images = np.empty((BATCH_SIZE, 64, 64, 3), dtype=np.float32)
i = 0
for p in batch_paths:
img = misc.imread(p).astype('float32')
img_a = misc.imresize(img, (256, 256))
img_b = misc.imresize(img, (64, 64))
img_a = data_ops.normalize(img_a)
img_b = data_ops.normalize(img_b)
batch_a_images[i, ...] = img_a
batch_b_images[i, ...] = img_b
i += 1
r = random.random()
if r < 0.5:
batch_a_images = np.fliplr(batch_a_images)
batch_b_images = np.fliplr(batch_b_images)
r = random.random()
if r < 0.5:
batch_a_images = np.flipud(batch_a_images)
batch_b_images = np.flipud(batch_b_images)
# update D
for critic_itr in range(n_critic):
try:
saver.restore(sess, ckpt.model_checkpoint_path)
print "Model restored"
except:
print "Could not restore model"
raise
exit()
test_len = len(test_annots)
print test_len,'testing images'
for t_img, t_annot, t_gid in zip(test_images, test_annots, test_ids):
t_img = misc.imread(t_img)
if CROP: t_img = data_ops.crop_center(t_img, 212, 212)
t_img = misc.imresize(t_img, (SIZE, SIZE, 3))
t_img = data_ops.normalize(t_img)
canvas = 255*np.ones((84, (MAX_GEN+1)*74+10 , 3), dtype=np.uint8)
start_x = 10
start_y = 10
end_y = start_y+64
t_img = (t_img+1.)
t_img *= 127.5
t_img = np.clip(t_img, 0, 255).astype(np.uint8)
t_img = np.reshape(t_img, (64, 64, -1))
end_x = start_x+64
canvas[start_y:end_y, start_x:end_x, :] = t_img
start_x = end_x+10
# put a line of black pixels in between the real image and generated ones
canvas[:, end_x+5] = 0
print 'train num:', train_len
epoch_num = step / (train_len / BATCH_SIZE)
lr_ = 1e-3
while epoch_num < EPOCHS:
epoch_num = step / (train_len / BATCH_SIZE)
idx = np.random.choice(np.arange(train_len), BATCH_SIZE, replace=False)
batch_z = latents[idx]
batch_img = images_[idx]
batch_images = np.empty((BATCH_SIZE, 64, 64, 3), dtype=np.float32)
i = 0
for img in batch_img:
img = data_ops.normalize(misc.imread(img))
r = random.random()
if r < 0.5:
img = np.fliplr(img) # randomly flip left right half the time.
batch_images[i, ...] = img
i += 1
if epoch_num > 10 and epoch_num < 200: lr_ = 1e-4
if epoch_num > 20 and epoch_num < 300: lr_ = 1e-5
if epoch_num > 30 and epoch_num < 400: lr_ = 1e-6
if epoch_num > 40: lr_ = 1e-7
_, l = sess.run([train_op, loss],
feed_dict={
images: batch_images,
z: batch_z,
saver.restore(sess, ckpt.model_checkpoint_path)
print "Model restored"
except:
print "Could not restore model"
raise
exit()
pass
print 'Loading data...'
paths = np.asarray(sorted(glob.glob(IN_DIR + '*.png')))
i = 0
for img_p in tqdm(paths):
img = misc.imread(img_p)
img = misc.imresize(img, (64, 64))
img = data_ops.normalize(img)
img = np.expand_dims(img, 0)
gen_img = np.squeeze(
np.asarray(sess.run([gen_images], feed_dict={small_images: img})))
img = np.squeeze(img)
g_img = (gen_img + 1.)
g_img *= 127.5
g_img = np.clip(g_img, 0, 255).astype(np.uint8)
# also use bicubic interpolation and save that too
b_int = cv2.resize(img, (256, 256), interpolation=cv2.INTER_CUBIC)
misc.imsave(OUT_DIR + str(i) + '_real.png', img)
misc.imsave(OUT_DIR + str(i) + '_interp.png', b_int)
pkl_file = open(DATA_DIR + 'data.pkl')
data = pickle.load(pkl_file)
images_ = data.keys()
t = data.values()
images_ = np.asarray(images_)
encodings, labels = zip(*t)
encodings = np.asarray(encodings)
labels = np.asarray(labels)
original_image = images_[0]
label = labels[0]
z_ = encodings[0]
original_image = misc.imread(original_image)
original_image = data_ops.normalize(original_image)
z_ = np.expand_dims(z_, 0)
label = np.expand_dims(label, 0)
reconstruction = np.squeeze(
sess.run(gen_images, feed_dict={
z: z_,
y: label
}))
misc.imsave(IMAGES_DIR + str('000') + '_o.png', original_image)
misc.imsave(IMAGES_DIR + str('000') + '_r.png', reconstruction)
print label
print 'test num:', test_len
info = {}
'''
for x in batch(train_images, BATCH_SIZE):
if len(x) < 64: break
batch_images = []
for im in x:
img = misc.imread(im).astype('float32')
batch_images.append(img)
batch_images = np.asarray(batch_images)
encoding = sess.run([encoded], feed_dict={images:batch_images})[0]
for ip,e in zip(x,encoding):
info[ip] = [e]
print info
exit()
'''
# want to write out a file with the image path and z vector
for image_path, label in tqdm(zip(test_images, test_annots)):
img = data_ops.normalize(misc.imread(image_path))
batch_images = np.expand_dims(img, 0)
encoding = sess.run([encoded], feed_dict={images: batch_images})[0]
info[image_path] = [encoding, label]
# write out dictionary to pickle file
p = open(OUTPUT_DIR + 'data.pkl', 'wb')
data = pickle.dumps(info)
p.write(data)
p.close()