def main():
size = 12
net = 'native_'+str(size)
with open('%s/pos_%s.txt' % (net, size), 'r') as f:
pos = f.readlines()
with open('%s/neg_%s.txt' % (net, size), 'r') as f:
neg = f.readlines()
with open('%s/part_%s.txt' % (net, size), 'r') as f:
part = f.readlines()
print('\n'+'pos')
filename_cls = 'pnet_data_for_cls.tfrecords'
print('Writing')
examples = []
writer = tf.python_io.TFRecordWriter(filename_cls)
cur_ = 0
sum_ = len(pos)
for line in pos:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0]+'.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([0, 1], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)}))
examples.append(example)
print('\n'+'neg')
cur_ = 0
neg_keep = npr.choice(len(neg), size=1000000, replace=False)
sum_ = len(neg_keep)
for i in neg_keep:
line = neg[i]
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0]+'.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([1, 0], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)}))
examples.append(example)
print(len(examples))
random.shuffle(examples)
for example in examples:
writer.write(example.SerializeToString())
writer.close()
print('\n'+'pos')
cur_ = 0
filename_roi = 'pnet_data_for_bbx.tfrecords'
print('Writing')
sum_ = len(pos)
examples = []
writer = tf.python_io.TFRecordWriter(filename_roi)
for line in pos:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0]+'.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([float(words[2]), float(words[3]),
float(words[4]), float(words[5])],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)}))
examples.append(example)
print('\n'+'part')
cur_ = 0
part_keep = npr.choice(len(part), size=300000, replace=False)
sum_ = len(part_keep)
for i in part_keep:
view_bar(cur_, sum_)
line = part[i]
cur_ += 1
words = line.split()
image_file_name = words[0]+'.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([float(words[2]), float(words[3]),
float(words[4]), float(words[5])],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)}))
examples.append(example)
print(len(examples))
random.shuffle(examples)
for example in examples:
writer.write(example.SerializeToString())
writer.close()
def generate_ft_or_svm_data(list_path,
num_clss,
save_path,
threshold=0.5,
is_svm=False,
save=False):
""""
按照给定的list文件生成 ft或 svm训练用的数据集。
:param list_path: path of fine_tune_list.txt.
:param num_clss: number of class (include background).
:param save_path: path to save generated example.
:param threshold: threshold of IoU with ground truth.
:param is_svm: if true, labels will be scalar instead of one hot vector.
:param save: if true, save generated data as .npy files to save_path.
:return: resized RPs (list of float 3D array) and labels (list of scalar or
one hot).
"""
fr = open(list_path, 'r')
train_list = fr.readlines()
# random.shuffle(train_list)
for num, line in enumerate(train_list): # 1 line = 1 image = 1 .npy
labels = []
images = []
tmp = line.strip().split(' ') # [image path, label, rect GT]
img = cv2.imread(tmp[0])
img_lbl, regions = ss.selective_search(img,
scale=500,
sigma=0.9,
min_size=10)
candidates = set()
for r in regions:
# excluding same rectangle (with different segments)
if r['rect'] in candidates:
continue
# excluding small regions
if r['size'] < 220:
continue
if (r['rect'][2] * r['rect'][3]) < 500:
continue
# 按照rect尺寸裁剪原图
proposal_img, proposal_rect = clip_pic(img, r['rect'])
# Delete Empty array
if len(proposal_img) == 0:
continue
# Ignore things contain 0 or not C contiguous array
x, y, w, h = r['rect']
if w == 0 or h == 0:
continue
# Check if any 0-dimension exist
[a, b, c] = np.shape(proposal_img)
if a == 0 or b == 0 or c == 0:
continue
# resize RPs to the input size of CNN
resized_proposal_img = resize_image(proposal_img,
config.IMAGE_SIZE,
config.IMAGE_SIZE)
candidates.add(r['rect'])
img_float = np.asarray(resized_proposal_img, dtype="float32")
images.append(img_float)
# IOU
ref_rect = tmp[2].split(',')
ref_rect_int = [int(i) for i in ref_rect]
iou_val = IOU(ref_rect_int, proposal_rect)
# attach labels according to IoU threshold, 0: background
index = int(tmp[1])
if is_svm:
if iou_val < threshold:
labels.append(0) # negative example
else:
labels.append(index) # positive example
else: # fine tune
label = np.zeros(num_clss + 1) # one hot
if iou_val < threshold:
label[0] = 1 # negative
else:
label[index] = 1 # positive
labels.append(label)
tools.view_bar(
"processing image of %s" % list_path.split('\\')[-1].strip(),
num + 1, len(train_list))
if save:
np.save((os.path.join(
save_path, tmp[0].split('/')[-1].split('.')[0].strip()) +
'_data.npy'), [images, labels])
print(' ')
fr.close()
def main(args):
image_size = 24
save_dir = str(image_size)
anno_file = 'wider_face_train.txt'
im_dir = 'WIDER_train/images/'
neg_save_dir = save_dir+'/negative'
pos_save_dir = save_dir+'/positive'
part_save_dir = save_dir+'/part'
if not os.path.exists(save_dir):
os.mkdir(save_dir)
if not os.path.exists(pos_save_dir):
os.mkdir(pos_save_dir)
if not os.path.exists(part_save_dir):
os.mkdir(part_save_dir)
if not os.path.exists(neg_save_dir):
os.mkdir(neg_save_dir)
f1 = open(save_dir+'/pos_24.txt', 'w')
f2 = open(save_dir+'/neg_24.txt', 'w')
f3 = open(save_dir+'/part_24.txt', 'w')
threshold = 0.6
with open(anno_file, 'r') as f:
annotations = f.readlines()
num = len(annotations)
print('%d pics in total' % num)
p_idx = 0 # positive
n_idx = 0 # negative
d_idx = 0 # dont care
image_idx = 0
with tf.device('/gpu:0'):
minsize = 20
factor = 0.709
model_file = args.pnet_model
with tf.Graph().as_default():
config = tf.ConfigProto(allow_soft_placement=True)
config.gpu_options.per_process_gpu_memory_fraction = 0.5
with tf.Session(config=config) as sess:
image = tf.placeholder(tf.float32, [None, None, None, 3])
pnet = PNet({'data': image}, mode='test')
out_tensor = pnet.get_all_output()
init_op = tf.global_variables_initializer()
sess.run(init_op)
saver = tf.train.Saver()
saver.restore(sess, model_file)
def pnet_fun(img): return sess.run(
out_tensor, feed_dict={image: img})
for annotation in annotations:
annotation = annotation.strip().split(' ')
bbox = list(map(float, annotation[1:]))
gts = np.array(bbox, dtype=np.float32).reshape(-1, 4)
img_path = im_dir + annotation[0] + '.jpg'
img = cv2.imread(img_path)
rectangles = detect_face_12net(img, minsize, pnet_fun,
threshold, factor)
image_idx += 1
view_bar(image_idx, num)
for box in rectangles:
lis = box.astype(np.int32)
mask = lis < 0
lis[mask] = 0
x_left, y_top, x_right, y_bottom, _ = lis
crop_w = x_right - x_left + 1
crop_h = y_bottom - y_top + 1
# ignore box that is too small or beyond image border
if crop_w < image_size or crop_h < image_size:
continue
Iou = IoU(box, gts)
cropped_im = img[y_top: y_bottom+1, x_left: x_right+1]
resized_im = cv2.resize(cropped_im,
(image_size, image_size),
interpolation=cv2.INTER_LINEAR)
# save negative images and write label
if np.max(Iou) < 0.3:
# Iou with all gts must below 0.3
save_file = os.path.join(neg_save_dir,
'%s.jpg' % n_idx)
f2.write('%s/negative/%s' %
(save_dir, n_idx) + ' 0\n')
cv2.imwrite(save_file, resized_im)
n_idx += 1
else:
# find gt_box with the highest iou
idx = np.argmax(Iou)
assigned_gt = gts[idx]
x1, y1, x2, y2 = assigned_gt
# compute bbox reg label
offset_x1 = (x1 - x_left) / float(crop_w)
offset_y1 = (y1 - y_top) / float(crop_h)
offset_x2 = (x2 - x_right) / float(crop_w)
offset_y2 = (y2 - y_bottom) / float(crop_h)
if np.max(Iou) >= 0.65:
save_file = os.path.join(pos_save_dir,
'%s.jpg' % p_idx)
f1.write('%s/positive/%s' % (save_dir, p_idx) +
' 1 %.2f %.2f %.2f %.2f\n' %
(offset_x1, offset_y1,
offset_x2, offset_y2))
cv2.imwrite(save_file, resized_im)
p_idx += 1
elif np.max(Iou) >= 0.4:
save_file = os.path.join(part_save_dir,
'%s.jpg' % d_idx)
f3.write('%s/part/%s' % (save_dir, d_idx) +
' -1 %.2f %.2f %.2f %.2f\n' %
(offset_x1, offset_y1,
offset_x2, offset_y2))
cv2.imwrite(save_file, resized_im)
d_idx += 1
f1.close()
f2.close()
f3.close()
def main(annotation_fp, image_dir, model_fp, output_dir):
image_size = 24
save_dir = os.path.join(output_dir, str(image_size))
neg_save_dir = save_dir + '/negative'
pos_save_dir = save_dir + '/positive'
part_save_dir = save_dir + '/part'
if not os.path.exists(save_dir):
os.mkdir(save_dir)
if not os.path.exists(pos_save_dir):
os.mkdir(pos_save_dir)
if not os.path.exists(part_save_dir):
os.mkdir(part_save_dir)
if not os.path.exists(neg_save_dir):
os.mkdir(neg_save_dir)
f1 = open(save_dir + '/pos_24.txt', 'w')
f2 = open(save_dir + '/neg_24.txt', 'w')
f3 = open(save_dir + '/part_24.txt', 'w')
threshold = 0.6
with open(annotation_fp, 'r') as f:
annotations = f.readlines()
num = len(annotations)
print('%d pics in total' % num)
p_idx = 0 # positive
n_idx = 0 # negative
d_idx = 0 # dont care
image_idx = 0
with tf.device('/gpu:0'):
minsize = 20
factor = 0.709
with tf.Graph().as_default():
config = tf.ConfigProto(allow_soft_placement=True)
config.gpu_options.per_process_gpu_memory_fraction = 0.5
with tf.Session(config=config) as sess:
image = tf.placeholder(tf.float32, [None, None, None, 3])
pnet = PNet({'data': image}, mode='test')
out_tensor = pnet.get_all_output()
init_op = tf.global_variables_initializer()
sess.run(init_op)
saver = tf.train.Saver()
saver.restore(sess, model_fp)
def pnet_fun(img):
return sess.run(out_tensor, feed_dict={image: img})
for annotation in annotations:
annotation = annotation.strip().split(' ')
bbox = list(map(float, annotation[1:5]))
gts = np.array(bbox, dtype=np.float32).reshape(-1, 4)
img_path = os.path.join(image_dir, annotation[0])
img = cv2.imread(img_path)
rectangles = detect_face_12net(img, minsize, pnet_fun,
threshold, factor)
image_idx += 1
view_bar(image_idx, num)
for box in rectangles:
lis = box.astype(np.int32)
mask = lis < 0
lis[mask] = 0
x_left, y_top, x_right, y_bottom, _ = lis
crop_w = x_right - x_left + 1
crop_h = y_bottom - y_top + 1
# ignore box that is too small or beyond image border
if crop_w < image_size or crop_h < image_size:
continue
iou = IoU(box, gts)
cropped_im = img[y_top:y_bottom + 1,
x_left:x_right + 1]
resized_im = cv2.resize(cropped_im,
(image_size, image_size),
interpolation=cv2.INTER_LINEAR)
# save negative images and write label
if np.max(iou) < 0.3:
filename = str(n_idx) + '.jpg'
# Iou with all gts must below 0.3
save_file = os.path.join(neg_save_dir, filename)
f2.write(
os.path.join(neg_save_dir, filename) + ' 0\n')
cv2.imwrite(save_file, resized_im)
n_idx += 1
else:
# find gt_box with the highest iou
idx = np.argmax(iou)
assigned_gt = gts[idx]
x1, y1, x2, y2 = assigned_gt
# compute bbox reg label
offset_x1 = (x1 - x_left) / float(crop_w)
offset_y1 = (y1 - y_top) / float(crop_h)
offset_x2 = (x2 - x_right) / float(crop_w)
offset_y2 = (y2 - y_bottom) / float(crop_h)
if np.max(iou) >= 0.65:
filename = str(p_idx) + '.jpg'
save_file = os.path.join(
pos_save_dir, filename)
f1.write(
os.path.join(pos_save_dir, filename) +
' 1 %.2f %.2f %.2f %.2f\n' %
(offset_x1, offset_y1, offset_x2,
offset_y2))
cv2.imwrite(save_file, resized_im)
p_idx += 1
elif np.max(iou) >= 0.4:
filename = str(d_idx) + '.jpg'
save_file = os.path.join(
part_save_dir, filename)
f3.write(
os.path.join(part_save_dir, filename) +
' -1 %.2f %.2f %.2f %.2f\n' %
(offset_x1, offset_y1, offset_x2,
offset_y2))
cv2.imwrite(save_file, resized_im)
d_idx += 1
f1.close()
f2.close()
f3.close()
def generateDataForRegression(dataInfoFilePath, savePath, threshold=0.6):
print("function = generateDataForRegression, filePath : ",
dataInfoFilePath)
f = open(dataInfoFilePath, "r")
fileInfoList = f.readlines()
# random.shuffle(fileInfoList)
print("line num of dataInfoFile : ", len(fileInfoList))
lineIndex = 0
for line in fileInfoList:
print(str(lineIndex) + " ---> Current line :", line)
# read image file pathInfo in this line
infoArr = line.split(" ")
imageFilePath = infoArr[0]
objectClass = int(infoArr[1])
objectBoxPositonInfo = infoArr[2]
print("image path :", imageFilePath)
print("object class :", objectClass)
print("object position info str :", objectBoxPositonInfo)
positionArrInString = objectBoxPositonInfo.split(",")
notationRectArr = [int(s) for s in positionArrInString]
# for s in positionArrInString:
# notationRectArr.append(int(s))
print("object position arr :", notationRectArr)
print("read imageFile info success...")
# read img from filePath
img = cv2.imread(imageFilePath)
print("original img size: ", np.shape(img))
# print(img)
# scale : size of the smallest region proposals
# sigma : Width of Gaussian kernel for felzenszwalb segmentation
# min_size : min size of regions
img_lbl, regions = selectivesearch.selective_search(img,
scale=500,
sigma=0.9,
min_size=10)
# img_lbl ??????
img_lbl_0 = img_lbl[0]
regions_0 = regions[0]
print("child img size :", np.shape(img_lbl_0))
print(regions_0
) # {'rect': (0, 0, 499, 441), 'size': 140000, 'labels': [0.0]}
# choose proposal regions
proposalRegionCandiatesInRect = set()
choosedChildImgArr = []
choosedCorrectionCoefArr = []
for childImageInfo in regions:
# childImageInfo : {'rect': (0, 0, 499, 441), 'size': 140000, 'labels': [0.0]}
if (proposalRegionCandiatesInRect.__contains__(
childImageInfo['rect'])):
print(" ------ childImage exist in candidates set, continue.")
continue
# delete child images which is too small
childImageSize = childImageInfo['size']
childImageRect = childImageInfo[
'rect'] # 'rect' : xStart, yStart, width, length
if (childImageInfo['size'] < 220
or childImageRect[2] * childImageRect[3] < 500):
continue
# crop original image by childImageRect
childImg, childImgDetailRect = cropImage(img, childImageRect)
childImgShape = np.shape(childImg)
# check childImage
if (len(childImg) == 0 or childImgShape[0] == 0
or childImgShape[1] == 0 or childImgShape[2] == 0):
continue
# resize image
resizedChildImg = resize_image(childImg, 224, 224)
proposalRegionCandiatesInRect.add(childImageRect)
resizedChildImgInFloat = np.asarray(resizedChildImg,
dtype="float32")
# calc IOU
# use rect in notation to compare with generated rect by selective search
iouValue = calcIOU(notationRectArr, childImgDetailRect)
print("IOU :", iouValue)
if (iouValue > threshold):
# this childImg can be used as training data for bbox regression
# calc correctionCoef
currCoef = calcCorrectionCoef(childImageRect, notationRectArr)
print("correction coef :", currCoef)
# add this childImg to result
choosedChildImgArr.append(resizedChildImgInFloat)
choosedCorrectionCoefArr.append(currCoef)
tools.view_bar(
"processing image of %s" %
dataInfoFilePath.split('\\')[-1].strip(), lineIndex + 1,
len(fileInfoList))
lineIndex += 1
# save childImg collection to npy file
originalImgFileName = imageFilePath.split('/')[-1]
headOfOriginalImgFileName = originalImgFileName.split('.')[0].strip()
tailOfGeneratedFileName = '_data.npy'
generatedFilePath = os.path.join(
savePath, headOfOriginalImgFileName) + tailOfGeneratedFileName
np.save(generatedFilePath,
[choosedChildImgArr, choosedCorrectionCoefArr])
print("store bbox regression training data into file :",
generatedFilePath)
f.close()
def main(args):
image_size = 48
save_dir = 'hard_' + str(image_size)
anno_file = 'AWE_train.txt'
im_dir = 'AWE_train/'
neg_save_dir = save_dir + '/negative'
pos_save_dir = save_dir + '/positive'
part_save_dir = save_dir + '/part'
if not os.path.exists(save_dir):
os.mkdir(save_dir)
if not os.path.exists(pos_save_dir):
os.mkdir(pos_save_dir)
if not os.path.exists(part_save_dir):
os.mkdir(part_save_dir)
if not os.path.exists(neg_save_dir):
os.mkdir(neg_save_dir)
f1 = open(save_dir + '/pos_48.txt', 'w')
f2 = open(save_dir + '/neg_48.txt', 'w')
f3 = open(save_dir + '/part_48.txt', 'w')
threshold = [0.6, 0.6]
with open(anno_file, 'r') as f:
annotations = f.readlines()
num = len(annotations)
print('%d pics in total' % num)
p_idx = 0 # positive
n_idx = 0 # negative
d_idx = 0 # dont care
image_idx = 0
with tf.device('/gpu:0'):
minsize = 20
factor = 0.709
model_file_pnet = args.pnet_model
model_file_rnet = args.rnet_model
with tf.Graph().as_default():
config = tf.compat.v1.ConfigProto(allow_soft_placement=True)
config.gpu_options.per_process_gpu_memory_fraction = 0.8
config.gpu_options.allow_growth = True
with tf.compat.v1.Session(config=config) as sess:
image_pnet = tf.compat.v1.placeholder(tf.float32,
[None, None, None, 3])
pnet = PNet({'data': image_pnet}, mode='test')
out_tensor_pnet = pnet.get_all_output()
image_rnet = tf.compat.v1.placeholder(tf.float32,
[None, 24, 24, 3])
rnet = RNet({'data': image_rnet}, mode='test')
out_tensor_rnet = rnet.get_all_output()
saver_pnet = tf.compat.v1.train.Saver([
v for v in tf.compat.v1.global_variables()
if v.name[0:4] == 'pnet'
])
saver_rnet = tf.compat.v1.train.Saver([
v for v in tf.compat.v1.global_variables()
if v.name[0:4] == 'rnet'
])
saver_pnet.restore(sess, model_file_pnet)
saver_rnet.restore(sess, model_file_rnet)
def pnet_fun(img):
return sess.run(out_tensor_pnet,
feed_dict={image_pnet: img})
def rnet_fun(img):
return sess.run(out_tensor_rnet,
feed_dict={image_rnet: img})
for annotation in annotations:
annotation = annotation.strip().split(' ')
bbox = list(map(float, annotation[1:]))
gts = np.array(bbox, dtype=np.float32).reshape(-1, 4)
img_path = im_dir + annotation[0]
img = cv2.imread(img_path)
rectangles = detect_face_24net(img, minsize, pnet_fun,
rnet_fun, threshold, factor)
image_idx += 1
view_bar(image_idx, num)
for box in rectangles:
lis = box.astype(np.int32)
mask = lis < 0
lis[mask] = 0
x_left, y_top, x_right, y_bottom, _ = lis
crop_w = x_right - x_left + 1
crop_h = y_bottom - y_top + 1
# ignore box that is too small or beyond image border
if crop_w < image_size or crop_h < image_size:
continue
Iou = IoU(box, gts)
cropped_im = img[y_top:y_bottom + 1,
x_left:x_right + 1]
resized_im = cv2.resize(cropped_im,
(image_size, image_size),
interpolation=cv2.INTER_LINEAR)
# save negative images and write label
if np.max(Iou) < 0.3:
# Iou with all gts must below 0.3
save_file = os.path.join(neg_save_dir,
'%s.jpg' % n_idx)
f2.write('hard_%s/negative/%s' %
(image_size, n_idx) + ' 0\n')
cv2.imwrite(save_file, resized_im)
n_idx += 1
else:
# find gt_box with the highest iou
idx = np.argmax(Iou)
assigned_gt = gts[idx]
x1, y1, x2, y2 = assigned_gt
# compute bbox reg label
offset_x1 = (x1 - x_left) / float(crop_w)
offset_y1 = (y1 - y_top) / float(crop_h)
offset_x2 = (x2 - x_right) / float(crop_w)
offset_y2 = (y2 - y_bottom) / float(crop_h)
if np.max(Iou) >= 0.65:
save_file = os.path.join(
pos_save_dir, '%s.jpg' % p_idx)
f1.write('hard_%s/positive/%s' %
(image_size, p_idx) +
' 1 %.2f %.2f %.2f %.2f\n' %
(offset_x1, offset_y1, offset_x2,
offset_y2))
cv2.imwrite(save_file, resized_im)
p_idx += 1
elif np.max(Iou) >= 0.4:
save_file = os.path.join(
part_save_dir, '%s.jpg' % d_idx)
f3.write('hard_%s/part/%s' %
(image_size, d_idx) +
' -1 %.2f %.2f %.2f %.2f\n' %
(offset_x1, offset_y1, offset_x2,
offset_y2))
cv2.imwrite(save_file, resized_im)
d_idx += 1
f1.close()
f2.close()
f3.close()
def main():
size = 48
net = str(size)
with open('%s/pos_%s.txt' % (net, size), 'r') as f:
pos_hard = f.readlines()
with open('%s/neg_%s.txt' % (net, size), 'r') as f:
neg_hard = f.readlines()
with open('%s/part_%s.txt' % (net, size), 'r') as f:
part_hard = f.readlines()
with open('native_' + '%s/pos_%s.txt' % (net, size), 'r') as f:
pos = f.readlines()
with open('native_' + '%s/neg_%s.txt' % (net, size), 'r') as f:
neg = f.readlines()
with open('native_' + '%s/part_%s.txt' % (net, size), 'r') as f:
part = f.readlines()
print('\n' + 'positive hard')
cur_ = 0
sum_ = len(pos_hard)
filename_cls = 'onet_data_for_cls.tfrecords'
print('Writing')
examples = []
writer = tf.python_io.TFRecordWriter(filename_cls)
for line in pos_hard:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([0, 1], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
print('\n' + 'positive random cropped')
cur_ = 0
pos_keep = npr.choice(len(pos), size=20000, replace=False)
sum_ = len(pos_keep)
print('Writing')
for i in pos_keep:
view_bar(cur_, sum_)
cur_ += 1
line = pos[i]
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([0, 1], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
print('\n' + 'negative random cropped')
cur_ = 0
neg_keep = npr.choice(len(neg), size=300000, replace=False)
sum_ = len(neg_keep)
for i in neg_keep:
view_bar(cur_, sum_)
cur_ += 1
line = neg[i]
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([1, 0], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
print('\n' + 'negative hard')
cur_ = 0
sum_ = len(neg_hard)
for line in neg_hard:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([1, 0], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
random.shuffle(examples)
for example in examples:
writer.write(example.SerializeToString())
writer.close()
print('\n' + 'positive random cropped')
cur_ = 0
filename_roi = 'onet_data_for_bbx.tfrecords'
print('Writing')
sum_ = len(pos_keep)
examples = []
writer = tf.python_io.TFRecordWriter(filename_roi)
for i in pos_keep:
view_bar(cur_, sum_)
cur_ += 1
line = pos[i]
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([
float(words[2]),
float(words[3]),
float(words[4]),
float(words[5])
],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
print('\n' + 'positive hard')
cur_ = 0
print('Writing')
sum_ = len(pos_hard)
for line in pos_hard:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([
float(words[2]),
float(words[3]),
float(words[4]),
float(words[5])
],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
print('\n' + 'part hard')
cur_ = 0
sum_ = len(part_hard)
for line in part_hard:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([
float(words[2]),
float(words[3]),
float(words[4]),
float(words[5])
],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
print('\n' + 'part random cropped')
cur_ = 0
part_keep = npr.choice(len(part), size=100000, replace=False)
sum_ = len(part_keep)
for i in part_keep:
view_bar(cur_, sum_)
line = part[i]
cur_ += 1
words = line.split()
image_file_name = words[0] + '.jpg'
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 48 or w != 48:
im = cv2.resize(im, (48, 48))
im = im.astype('uint8')
label = np.array([
float(words[2]),
float(words[3]),
float(words[4]),
float(words[5])
],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
random.shuffle(examples)
for example in examples:
writer.write(example.SerializeToString())
writer.close()
def load_train_proposals(datafile, num_clss, save_path, threshold=0.5, is_svm=False, save=False):
fr = open(datafile, 'r')
train_list = fr.readlines()
# random.shuffle(train_list)
for num, line in enumerate(train_list):
labels = []
images = []
rects = []
tmp = line.strip().split(' ')
# tmp0 = image address
# tmp1 = label
# tmp2 = rectangle vertices
img_path = tmp[0]
img = cv2.imread(tmp[0])
# 选择搜索得到候选框
img_lbl, regions = selective_search(img_path, neighbor=8, scale=500, sigma=0.9, min_size=20)
candidates = set()
ref_rect = tmp[2].split(',')
ref_rect_int = [int(i) for i in ref_rect]
Gx = ref_rect_int[0]
Gy = ref_rect_int[1]
Gw = ref_rect_int[2]
Gh = ref_rect_int[3]
for r in regions:
# excluding same rectangle (with different segments)
if r['rect'] in candidates:
continue
# excluding small regions
if r['size'] < 220:
continue
if (r['rect'][2] * r['rect'][3]) < 500:
continue
# 截取目标区域
proposal_img, proposal_vertice = clip_pic(img, r['rect'])
# Delete Empty array
if len(proposal_img) == 0:
continue
# Ignore things contain 0 or not C contiguous array
x, y, w, h = r['rect']
if w == 0 or h == 0:
continue
# Check if any 0-dimension exist
[a, b, c] = np.shape(proposal_img)
if a == 0 or b == 0 or c == 0:
continue
# resize到227*227
resized_proposal_img = resize_image(proposal_img, config.IMAGE_SIZE, config.IMAGE_SIZE)
candidates.add(r['rect'])
img_float = np.asarray(resized_proposal_img, dtype="float32")
images.append(img_float)
# IOU
iou_val = IOU(ref_rect_int, proposal_vertice)
# x,y,w,h作差，用于boundingbox回归
rects.append([(Gx-x)/w, (Gy-y)/h, math.log(Gw/w), math.log(Gh/h)])
# propasal_rect = [proposal_vertice[0], proposal_vertice[1], proposal_vertice[4], proposal_vertice[5]]
# print(iou_val)
# labels, let 0 represent default class, which is background
index = int(tmp[1])
if is_svm:
# iou小于阈值，为背景，0
if iou_val < threshold:
labels.append(0)
elif iou_val > 0.6: # 0.85
labels.append(index)
else:
labels.append(-1)
else:
label = np.zeros(num_clss + 1)
if iou_val < threshold:
label[0] = 1
else:
label[index] = 1
labels.append(label)
if is_svm:
ref_img, ref_vertice = clip_pic(img, ref_rect_int)
resized_ref_img = resize_image(ref_img, config.IMAGE_SIZE, config.IMAGE_SIZE)
img_float = np.asarray(resized_ref_img, dtype="float32")
images.append(img_float)
rects.append([0, 0, 0, 0])
labels.append(index)
tools.view_bar("processing image of %s" % datafile.split('\\')[-1].strip(), num + 1, len(train_list))
if save:
if is_svm:
# strip()去除首位空格
np.save((os.path.join(save_path, tmp[0].split('/')[-1].split('.')[0].strip()) + '_data.npy'), [images, labels, rects])
else:
# strip()去除首位空格
np.save((os.path.join(save_path, tmp[0].split('/')[-1].split('.')[0].strip()) + '_data.npy'),
[images, labels])
print(' ')
fr.close()
def train_svms(train_file_folder, model):
# 这里，我们将不同的训练集合分配到不同的txt文件里，每一个文件只含有一个种类
files = os.listdir(train_file_folder)
svms = []
train_features = []
bbox_train_features = []
rects = []
for train_file in files:
if train_file.split('.')[-1] == 'txt':
pred_last = -1
pred_now = 0
X, Y, R = generate_single_svm_train(os.path.join(train_file_folder, train_file))
Y1 = []
features1 = []
Y_hard = []
features_hard = []
for ind, i in enumerate(X):
# extract features 提取特征
feats = model.predict([i])
train_features.append(feats[0])
# 所有正负样本加入feature1,Y1
if Y[ind]>=0:
Y1.append(Y[ind])
features1.append(feats[0])
# 对与groundtruth的iou>0.6的加入boundingbox训练集
if Y[ind]>0:
bbox_train_features.append(feats[0])
rects.append(R[ind])
# 剩下作为测试集
else:
Y_hard.append(Y[ind])
features_hard.append(feats[0])
tools.view_bar("extract features of %s" % train_file, ind + 1, len(X))
# 难负例挖掘
clf = SVC(probability=True)
# 训练直到准确率不再提高
while pred_now > pred_last:
clf.fit(features1, Y1)
features_new_hard = []
Y_new_hard = []
index_new_hard = []
# 统计测试正确数量
count = 0
for ind, i in enumerate(features_hard):
# print(clf.predict([i.tolist()])[0])
if clf.predict([i.tolist()])[0] == 0:
count += 1
# 如果被误判为正样本，加入难负例集合
elif clf.predict([i.tolist()])[0] > 0:
# 找到被误判的难负例
features_new_hard.append(i)
Y_new_hard.append(clf.predict_proba([i.tolist()])[0][1])
index_new_hard.append(ind)
# 如果难负例样本过少，停止迭代
if len(features_new_hard)/10<1:
break
pred_last = pred_now
# 计算新的测试正确率
pred_now = count / len(features_hard)
# print(pred_now)
# 难负例样本根据分类概率排序，取前10%作为负样本加入训练集
sorted_index = np.argsort(-np.array(Y_new_hard)).tolist()[0:int(len(features_new_hard)/10)]
for idx in sorted_index:
index = index_new_hard[idx]
features1.append(features_new_hard[idx])
Y1.append(0)
# 测试集中删除这些作为负样本加入训练集的样本。
features_hard.pop(index)
Y_hard.pop(index)
print(' ')
print("feature dimension")
print(np.shape(features1))
svms.append(clf)
# 将clf序列化，保存svm分类器
joblib.dump(clf, os.path.join(train_file_folder, str(train_file.split('.')[0]) + '_svm.pkl'))
# 保存boundingbox回归训练集
np.save((os.path.join(train_file_folder, 'bbox_train.npy')),
[bbox_train_features, rects])
# print(rects[0])
return svms
def main(input_size, classifier_tfrecord_fp, localizer_tfrecord_fp,
root_data_dir):
net = os.path.join(root_data_dir, 'native_' + str(input_size))
with open('%s/pos_%s.txt' % (net, input_size), 'r') as f:
pos = f.readlines()
with open('%s/neg_%s.txt' % (net, input_size), 'r') as f:
neg = f.readlines()
with open('%s/part_%s.txt' % (net, input_size), 'r') as f:
part = f.readlines()
print('\n' + 'pos')
print('Writing')
examples = []
writer = tf.python_io.TFRecordWriter(classifier_tfrecord_fp)
cur_ = 0
sum_ = len(pos)
for line in pos:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0]
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([0, 1], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print('\n' + 'neg')
cur_ = 0
neg_keep = npr.choice(len(neg), size=min(len(neg), 1000000), replace=False)
sum_ = len(neg_keep)
for i in neg_keep:
line = neg[i]
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0]
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([1, 0], dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
random.shuffle(examples)
for example in examples:
writer.write(example.SerializeToString())
writer.close()
print('\n' + 'pos')
cur_ = 0
print('Writing')
sum_ = len(pos)
examples = []
writer = tf.python_io.TFRecordWriter(localizer_tfrecord_fp)
for line in pos:
view_bar(cur_, sum_)
cur_ += 1
words = line.split()
image_file_name = words[0]
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([
float(words[2]),
float(words[3]),
float(words[4]),
float(words[5])
],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print('\n' + 'part')
cur_ = 0
part_keep = npr.choice(len(part),
size=min(len(part), 300000),
replace=False)
sum_ = len(part_keep)
for i in part_keep:
view_bar(cur_, sum_)
line = part[i]
cur_ += 1
words = line.split()
image_file_name = words[0]
im = cv2.imread(image_file_name)
h, w, ch = im.shape
if h != 12 or w != 12:
im = cv2.resize(im, (12, 12))
im = im.astype('uint8')
label = np.array([
float(words[2]),
float(words[3]),
float(words[4]),
float(words[5])
],
dtype='float32')
label_raw = label.tostring()
image_raw = im.tostring()
example = tf.train.Example(features=tf.train.Features(
feature={
'label_raw': bytes_feature(label_raw),
'image_raw': bytes_feature(image_raw)
}))
examples.append(example)
print(len(examples))
random.shuffle(examples)
for example in examples:
writer.write(example.SerializeToString())
writer.close()