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test_img.py
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test_img.py
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import argparse
import os
import platform
import shutil
import time
from pathlib import Path
import cv2
import torch
import torch.backends.cudnn as cudnn
from numpy import random
from utils.google_utils import attempt_load
from utils.datasets import LoadStreams, LoadImages,letterbox
from utils.general import (
check_img_size, non_max_suppression, apply_classifier, scale_coords, xyxy2xywh, strip_optimizer)
from utils.plots import plot_one_box
from utils.torch_utils import select_device, load_classifier, time_synchronized
from models.models import *
from utils.datasets import *
from utils.general import *
# Load model
conf_thres = 0.4
iou_thres = 0.5
prob_thres = 0.7
cuda = torch.cuda.is_available()
device = torch.device('cuda:0' if cuda else 'cpu')
imgsz = (1280,1280)
cfg = './cfg/yolor_p6_score.cfg'
weights = "./runs/train/yolor_p6/weights/best_overall.pt"
img_path = "./test"
names = ["QP","NY","QG"]
colors = [[random.randint(0, 255) for _ in range(3)] for _ in range(len(names))]
model = Darknet(cfg, imgsz).cuda()
model.load_state_dict(torch.load(weights, map_location=device)['model'])
# model = attempt_load(weights, map_location=device) # load FP32 model
#imgsz = check_img_size(imgsz, s=model.stride.max()) # check img_size
model.to(device).eval()
# if half:
# model.half() # to FP16
# # Second-stage classifier
# classify = False
# if classify:
# modelc = load_classifier(name='resnet101', n=2) # initialize
# modelc.load_state_dict(torch.load('weights/resnet101.pt', map_location=device)['model']) # load weights
# modelc.to(device).eval()
files = os.listdir(img_path)
for file in files:
path = os.path.join(img_path,file)
img0 = cv2.imread(path) # BGR
# Padded resize
img = letterbox(img0, new_shape=imgsz, auto=False,auto_size=32)[0]
# Convert
img = img[:, :, ::-1].transpose(2, 0, 1) # BGR to RGB, to 3x416x416
img = np.ascontiguousarray(img)
img = torch.from_numpy(img).to(device)
# img = img.half() if half else img.float() # uint8 to fp16/32
img = img.float()
img /= 255.0 # 0 - 255 to 0.0 - 1.0
if img.ndimension() == 3:
img = img.unsqueeze(0)
# Inference
t1 = time_synchronized()
# print(img.shape)
pred = model(img, augment=False)[0]
# Apply NMS
pred = non_max_suppression(pred, conf_thres, iou_thres, agnostic=True)
t2 = time_synchronized()
# Process detections
for i, det in enumerate(pred): # detections per image
gn = torch.tensor(img0.shape)[[1, 0, 1, 0]] # normalization gain whwh
if det is not None and len(det):
# Rescale boxes from img_size to im0 size
det[:, :4] = scale_coords(img.shape[2:], det[:, :4], img0.shape).round()
# Write results
for *xyxy, conf, cls in det:
if conf < prob_thres:
continue
label = '%s %.2f' % (names[int(cls)], conf)
plot_one_box(xyxy, img0, label=label, color=colors[int(cls)], line_thickness=3)
# Print time (inference + NMS)
print('%sDone. (%.3fs)' % (file, t2 - t1))
if not os.path.exists("./test_res/"):
os.makedirs("./test_res/")
save_path = os.path.join("./test_res/",file)
cv2.imwrite(save_path, img0)