test_real.py

import cv2
import os
import argparse
import numpy as np
import paddle
from utils import *
from networks import *
from generator import Generator_lstm
import time

parser = argparse.ArgumentParser(description="PReNet_Test")
parser.add_argument("--logdir", type=str, default="logs/real/", help='path to model and log files')
parser.add_argument("--data_path", type=str, default="results/real/test/", help='path to training data')
parser.add_argument("--save_path", type=str, default="results/real/", help='path to save results')
parser.add_argument("--which_model", type=str, default="PReNet2.pth", help='model name')
parser.add_argument("--recurrent_iter", type=int, default=4, help='number of recursive stages')
opt = parser.parse_args()


def main():

    os.makedirs(opt.save_path, exist_ok=True)

    # Build model
    print('Loading model ...\n')
    model = Generator_lstm(opt.recurrent_iter)
    print_network(model)
    model.load_state_dict(paddle.load(os.path.join(opt.logdir, opt.which_model)))
    model.eval()

    time_test = 0
    count = 0
    for img_name in os.listdir(opt.data_path):
        if is_image(img_name):
            img_path = os.path.join(opt.data_path, img_name)

            # input image
            y = cv2.imread(img_path)
            b, g, r = cv2.split(y)
            y = cv2.merge([r, g, b])
            #y = cv2.resize(y, (int(500), int(500)), interpolation=cv2.INTER_CUBIC)

            y = normalize(np.float32(y))
            y = np.expand_dims(y.transpose(2, 0, 1), 0)
            y = paddle.to_tensor(y)

            with paddle.no_grad(): #
                paddle.device.cuda.synchronize()
                start_time = time.time()

                out, _ = model(y)
                out = paddle.clip(out, 0., 1.)

                paddle.device.cuda.synchronize()
                end_time = time.time()
                dur_time = end_time - start_time
                time_test += dur_time

                print(img_name, ': ', dur_time)

            save_out = np.uint8(255 * out.cpu().numpy().squeeze())   #back to cpu

            save_out = save_out.transpose(1, 2, 0)
            b, g, r = cv2.split(save_out)
            save_out = cv2.merge([r, g, b])

            cv2.imwrite(os.path.join(opt.save_path, img_name), save_out)

            count += 1

    print('Avg. time:', time_test/count)


if __name__ == "__main__":
    main()