def __init__(self):
super(trainer, self).__init__()
self.total_loss = 0.
self.rpn_reg_loss = 0.
self.rpn_cls_loss = 0.
self.reg_loss = 0.
self.cls_loss = 0.
self.model=FRCNN('train')
self.model.get_data_loader(shuffule=False)
self.model.get_network()
self.n_sample = [256, 128] # number of samples for two stage targets
self.at = AnchorTargetCreator(self.n_sample[0]) # generate labels for rpn
self.pt = ProposalTargetCreator(self.n_sample[1]) # generate labels for classifier
self.post_thre = n_train_post_nms # number of rois kept for each image
from keras.layers import Input
from frcnn import FRCNN
from PIL import Image
import numpy as np
import cv2
import time
frcnn = FRCNN()
# 调用摄像头
capture = cv2.VideoCapture(0) # capture=cv2.VideoCapture("1.mp4")
fps = 0.0
while (True):
t1 = time.time()
# 读取某一帧
ref, frame = capture.read()
# 格式转变，BGRtoRGB
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
# 转变成Image
frame = Image.fromarray(np.uint8(frame))
# 进行检测
frame = np.array(frcnn.detect_image(frame))
# RGBtoBGR满足opencv显示格式
frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
fps = (fps + (1. / (time.time() - t1))) / 2
print("fps= %.2f" % (fps))
frame = cv2.putText(frame, "fps= %.2f" % (fps), (0, 40),
cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0), 2)
'''
predict.py有几个注意点
1、无法进行批量预测，如果想要批量预测，可以利用os.listdir()遍历文件夹，利用Image.open打开图片文件进行预测。
2、如果想要保存，利用r_image.save("img.jpg")即可保存。
3、如果想要获得框的坐标，可以进入detect_image函数，读取top,left,bottom,right这四个值。
4、如果想要截取下目标，可以利用获取到的top,left,bottom,right这四个值在原图上利用矩阵的方式进行截取。
'''
from frcnn import FRCNN
from PIL import Image
frcnn = FRCNN()
while True:
img = input('Input image filename:')
try:
image = Image.open(img)
#-------------------------------------#
# 转换成RGB图片，可以用于灰度图预测。
#-------------------------------------#
image = image.convert("RGB")
except:
print('Open Error! Try again!')
continue
else:
r_image = frcnn.detect_image(image)
r_image.show()
#-------------------------------------#
# 对所有测试图片进行预测
#-------------------------------------#
from frcnn import FRCNN
from PIL import Image
frcnn = FRCNN()
# img = 'dataset/test/images/006486001008661.jpg'
# image = Image.open(img)
# r_image = frcnn.detect_image(image)
# r_image.save('result.jpg')
testdata_file = 'dataset/main/test.txt'
f = open(testdata_file)
lines = f.readlines()
result = open('result.txt', 'w')
for l in lines:
l = l.strip()
img = "dataset/test/images/%s.jpg" % l
image = Image.open(img)
bbox, conf, label = frcnn.detect_image(image)
if len(bbox) == 0:
continue
for i in range(len(bbox)):
score = conf[i] # 置信度
left, top, right, bottom = bbox[i] # 框框位置
result.write(l)
class trainer(nn.Module):
def __init__(self):
super(trainer, self).__init__()
self.total_loss = 0.
self.rpn_reg_loss = 0.
self.rpn_cls_loss = 0.
self.reg_loss = 0.
self.cls_loss = 0.
self.model=FRCNN('train')
self.model.get_data_loader(shuffule=False)
self.model.get_network()
self.n_sample = [256, 128] # number of samples for two stage targets
self.at = AnchorTargetCreator(self.n_sample[0]) # generate labels for rpn
self.pt = ProposalTargetCreator(self.n_sample[1]) # generate labels for classifier
self.post_thre = n_train_post_nms # number of rois kept for each image
def _fast_rcnn_loc_loss(self, pred_loc, gt_loc, gt_label, sigma=1):
"""
loss function of the regressors of rpn and heads
Inputs:
pred_loc: [n_sample, 4]
gt_loc: [n_sample, 4]
gt_label: [n_sample]
Outputs:
loss
"""
# only train the positive samples
pred_loc = pred_loc[gt_label>0]
gt_loc = gt_loc[gt_label>0]
def _smooth_l1_loss(x, t, sigma):
sigma_squared = sigma ** 2
regression_diff = (x - t)
regression_diff = regression_diff.abs()
regression_loss = torch.where(
regression_diff < (1. / sigma_squared),
0.5 * sigma_squared * regression_diff ** 2,
regression_diff - 0.5 / sigma_squared
)
return regression_loss.sum()
loc_loss = _smooth_l1_loss(pred_loc, gt_loc, sigma)
num_pos = (gt_label > 0).sum().float()
loc_loss /= torch.max(num_pos, torch.ones_like(num_pos))
return loc_loss
def train_step(self, image, boxes, labels):
self.optimizer.zero_grad()
# extract the backbone features
features = self.model.net.backbone(image.float())
# cls: [N,2, KHW], reg: [N,KHW, 4], rois: [N*post_thre, 4], roi_ind: [N*post_thre], anchors: [KHW, 4]
cls, reg, rois, roi_inds, anchors = self.model.net.rpn(features, image.shape[3], image.shape[2])
# labels for rpn
reg_targets_rpn = torch.zeros([len(image), anchors.shape[0], anchors.shape[1]]) # [N, KHW, 4]
cls_labels_rpn = torch.zeros([len(image), anchors.shape[0]]) #[N,KHW]
for i in range(len(image)):
# for each image
# make the rpn ratgets
label = labels[i] # [32]
true_ind = label!=-1
box = boxes[i, true_ind, :] # [32, 4]
reg_target_rpn, label_rpn = self.at(box, anchors)
reg_targets_rpn[i] = torch.from_numpy(reg_target_rpn)
cls_labels_rpn[i] = torch.from_numpy(label_rpn)
rpn_reg_loss = self._fast_rcnn_loc_loss(reg, reg_targets_rpn, cls_labels_rpn)
rpn_cls_loss = F.cross_entropy(cls, cls_labels_rpn.type(torch.LongTensor), ignore_index=-1)
# labels for classifier
sample_rois = torch.zeros([image.shape[0], self.n_sample[1], 4]) # [N,128,4]
sample_rois_ind = torch.zeros([image.shape[0], self.n_sample[1]]) # [N,128]
reg_targets_classifier = torch.zeros([len(image), self.n_sample[1], 4]) # [N, n_sample, 4]
cls_labels_classifier = torch.zeros([len(image), self.n_sample[1]]) #[N, n_sample]
for i in range(len(image)):
sample_rois_ind[i,:] = i
# make the classifier tartgets
roi = rois.detach()[roi_inds==i, :] # get the rois for one image. [600, 4]
label = labels[i] # [32]
true_ind = label!=-1
box = boxes[i, true_ind, :] # [32, 4]
label = label[true_ind] # 32
# sample_roi:[n_sample, 4], reg_target_classifier:[n_sample, 4], cls_label_classifier:[n_sample,]
sample_roi, reg_target_classifier, cls_label_classifier = self.pt(roi, box, label)
sample_rois[i,:,:] = torch.from_numpy(sample_roi)
reg_targets_classifier[i,:,:] = torch.from_numpy(reg_target_classifier)
cls_labels_classifier[i,:] = torch.from_numpy(cls_label_classifier)
# flatten the rois and the inds
sample_rois = sample_rois.contiguous().view(-1, 4)
sample_rois_ind = torch.flatten(sample_rois_ind)
#cls_outputs: [N, 21, n_sample], reg_outputs: [N, n_sample, 21*4],
cls_output, reg_output = self.model.net.head(features, sample_rois, sample_rois_ind, image.shape[2], image.shape[3])
# gather selected boxes
# first make the indexes from cls labels
reg_ind = cls_labels_classifier.detach().unsqueeze(-1).type(torch.LongTensor)*4 # [N,n_sample,1]
reg_ind = torch.cat([reg_ind, reg_ind+1, reg_ind+2, reg_ind+3], dim=-1)
# select the boxes. [N, n_sample, 4]
reg_output = torch.gather(reg_output, dim=-1, index=reg_ind)
# losses
reg_loss = self._fast_rcnn_loc_loss(reg_output, reg_targets_classifier, cls_labels_classifier)
cls_loss = F.cross_entropy(cls_output, cls_labels_classifier.type(torch.LongTensor), ignore_index=-1)
total_loss = rpn_cls_loss+rpn_reg_loss+cls_loss+reg_loss
print("Total loss:{}, \nrpn cls loss:{}, rpn reg loss:{}, \ncls loss:{},reg loss:{}".format(total_loss,rpn_cls_loss,rpn_reg_loss,cls_loss, reg_loss))
total_loss.backward()
self.optimizer.step()
def train(self, lr, n_epoch, save_folder='data/voc/model', load_path=None):
"""The code for training a faster rcnn"""
if load_path:
self.model.load_param(load_path)
if not os.path.exists(save_folder):
os.makedirs(save_folder)
self.model.net.train()
self.optimizer = opt.Adam(self.model.net.parameters(), lr=lr, weight_decay=5e-6)
self.scheduler = opt.lr_scheduler.CosineAnnealingLR(self.optimizer, n_epoch)
for iter in range(n_epoch):
print('Training epoch:{}'.format(iter))
for i, data in enumerate(self.model.data_loader):
image, box, label = data['image'], data['box'].numpy(), data['label'].numpy()
self.train_step(image, box, label)
self.scheduler.step()
if iter % 10 == 0:
torch.save(self.model.net.state_dict(), os.path.join(save_folder, '{}.pth'.format(iter)))
from keras.layers import Input
from frcnn import FRCNN
from PIL import Image
frcnn = FRCNN()
raman = [
56.25, 53.25, 40.25, 49.25, 68.25, 65.25, 57.25, 63.25, 43.25, 47.25,
52.25, 34.25, 55.25, 51.25, 50.25, 51.25, 47.25, 49.25, 49.25, 65.25,
47.25, 63.25, 57.25, 37.25, 50.25, 42.25, 55.25, 71.25, 39.25, 46.25,
46.25, 53.25, 42.25, 48.25, 41.25, 83.25, 62.25, 69.25, 45.25, 38.25,
52.25, 31.25, 52.25, 54.25, 47.25, 66.25, 60.25, 52.25, 67.25, 73.25,
81.25, 113.25, 157.25, 271.25, 506.25, 770.25, 1099.25, 1414.25, 1630.25,
1767.25, 1767.25, 1769.25, 1790.25, 1862.25, 1935.25, 1999.25, 2076.25,
2157.25, 2169.25, 2209.25, 2229.25, 2273.25, 2314.25, 2339.25, 2440.25,
2473.25, 2510.25, 2510.25, 2529.25, 2515.25, 2499.25, 2438.25, 2407.25,
2345.25, 2320.25, 2299.25, 2323.25, 2346.25, 2302.25, 2143.25, 1973.25,
1719.25, 1509.25, 1312.25, 1204.25, 1083.25, 1010.25, 946.25, 898.25,
863.25, 829.25, 829.25, 791.25, 819.25, 803.25, 848.25, 881.25, 922.25,
912.25, 896.25, 938.25, 790.25, 705.25, 652.25, 637.25, 612.25, 579.25,
568.25, 527.25, 520.25, 499.25, 494.25, 484.25, 470.25, 477.25, 469.25,
461.25, 471.25, 487.25, 489.25, 481.25, 479.25, 476.25, 502.25, 471.25,
504.25, 506.25, 531.25, 571.25, 607.25, 674.25, 687.25, 714.25, 750.25,
691.25, 710.25, 690.25, 681.25, 677.25, 671.25, 626.25, 632.25, 608.25,
551.25, 524.25, 488.25, 471.25, 425.25, 426.25, 410.25, 399.25, 395.25,
409.25, 384.25, 393.25, 406.25, 389.25, 375.25, 390.25, 361.25, 359.25,
365.25, 353.25, 362.25, 363.25, 344.25, 364.25, 358.25, 350.25, 370.25,
372.25, 372.25, 383.25, 370.25, 397.25, 395.25, 420.25, 414.25, 409.25,
408.25, 445.25, 435.25, 418.25, 454.25, 426.25, 422.25, 436.25, 410.25,
413.25, 384.25, 383.25, 379.25, 358.25, 348.25, 336.25, 351.25, 341.25,
350.25, 344.25, 341.25, 343.25, 356.25, 326.25, 328.25, 369.25, 336.25,
from glob import glob
from itertools import chain
from skimage.io import imread, imshow, concatenate_images
from skimage.transform import resize
from skimage.morphology import label
from sklearn.model_selection import train_test_split
import tensorflow as tf
#from skimage.color import rgb2gray
from tensorflow.keras import Input
from tensorflow.keras.models import Model, load_model, save_model
from tensorflow.keras import backend as K
from PIL import Image
from frcnn import FRCNN
frcnn = FRCNN()
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
ALLOWED_EXTENSIONS = set(
['pdf', 'png', 'jpg', 'jpeg', 'PDF', 'PNG', 'JPG', 'JPEG', 'tif'])
app = Flask(__name__)
app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0
app.config['TEMPLATES_AUTO_RELOAD'] = True
app.jinja_env.auto_reload = True
prediction = ' '
confidence = 0
filename = 'Image_No_Pred_MJRoBot.png'
image_name = filename
"VOC2007/ImageSets/Main/test.txt")).read().strip().split()
if not os.path.exists(map_out_path):
os.makedirs(map_out_path)
if not os.path.exists(os.path.join(map_out_path, 'ground-truth')):
os.makedirs(os.path.join(map_out_path, 'ground-truth'))
if not os.path.exists(os.path.join(map_out_path, 'detection-results')):
os.makedirs(os.path.join(map_out_path, 'detection-results'))
if not os.path.exists(os.path.join(map_out_path, 'images-optional')):
os.makedirs(os.path.join(map_out_path, 'images-optional'))
class_names, _ = get_classes(classes_path)
if map_mode == 0 or map_mode == 1:
print("Load model.")
frcnn = FRCNN(confidence=confidence, nms_iou=nms_iou)
print("Load model done.")
print("Get predict result.")
for image_id in tqdm(image_ids):
image_path = os.path.join(
VOCdevkit_path, "VOC2007/JPEGImages/" + image_id + ".jpg")
image = Image.open(image_path)
if map_vis:
image.save(
os.path.join(map_out_path,
"images-optional/" + image_id + ".jpg"))
frcnn.get_map_txt(image_id, image, class_names, map_out_path)
print("Get predict result done.")
if map_mode == 0 or map_mode == 2:
#----------------------------------------------------#
import time
import cv2
import numpy as np
import tensorflow as tf
from PIL import Image
from frcnn import FRCNN
gpus = tf.config.experimental.list_physical_devices(device_type='GPU')
for gpu in gpus:
tf.config.experimental.set_memory_growth(gpu, True)
if __name__ == "__main__":
frcnn = FRCNN()
#----------------------------------------------------------------------------------------------------------#
# mode用于指定测试的模式：
# 'predict'表示单张图片预测，如果想对预测过程进行修改，如保存图片，截取对象等，可以先看下方详细的注释
# 'video'表示视频检测，可调用摄像头或者视频进行检测，详情查看下方注释。
# 'fps'表示测试fps，使用的图片是img里面的street.jpg，详情查看下方注释。
# 'dir_predict'表示遍历文件夹进行检测并保存。默认遍历img文件夹，保存img_out文件夹，详情查看下方注释。
#----------------------------------------------------------------------------------------------------------#
mode = "predict"
#-------------------------------------------------------------------------#
# crop指定了是否在单张图片预测后对目标进行截取
# crop仅在mode='predict'时有效
#-------------------------------------------------------------------------#
crop = False
#----------------------------------------------------------------------------------------------------------#
# video_path用于指定视频的路径，当video_path=0时表示检测摄像头
from frcnn import FRCNN
import numpy
net = FRCNN()
def setup(model_name):
net.set_model(model_name)
return 0
def detect_object(img, width, height):
image = numpy.array(img, dtype='uint8').reshape((height, width, 3))
result = net.detect_object(image)
return result
default='resnet50')
# parser.add_argument('-g', "--cuda", type=bool, help='do you have a gpu?', default=True)
parser.add_argument('-n',
"--num2show",
type=int,
help='num img 2 show',
default=1)
parser.add_argument('-r',
"--root",
type=str,
help='root dir filled with *.jpg')
parser.add_argument('-i', "--filename", type=str, help='filename', default='')
args = parser.parse_args()
frcnn = FRCNN(args.model_path, args.backbone, args.conf)
# efficientdet = EfficientDet(args.model_path, args.version, args.conf, args.cuda)
if args.num2show == 1:
image = Image.open(os.path.join(args.root, args.filename))
res, cls, score = frcnn.detect_image(image)
print(cls, score)
else:
print('结果将会保存到temp.png')
files = os.listdir(args.root)
idx = [
int(len(os.listdir(args.root)) * random.random())
for i in range(args.num2show)
]
imgs = [Image.open(os.path.join(args.root, files[id])) for id in idx]
from keras.layers import Input
from frcnn import FRCNN
from PIL import Image
frcnn = FRCNN()
while True:
img = input('Input image filename:')
try:
image = Image.open(img)
except:
print('Open Error! Try again!')
continue
else:
r_image = frcnn.detect_image(image)
r_image.show()
frcnn.close_session()