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import os
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from skimage import io, transform
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import torch
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import torchvision
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from torch.autograd import Variable
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import torch.nn as nn
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import torch.nn.functional as F
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from torch.utils.data import Dataset, DataLoader
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from torchvision import transforms#, utils
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# import torch.optim as optim
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import numpy as np
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from PIL import Image
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import glob
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from data_loader import RescaleT
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from data_loader import ToTensor
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from data_loader import ToTensorLab
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from data_loader import SalObjDataset
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from model import U2NET # full size version u2net 173.6 MB
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from model import U2NETP # small version u2net 4.7 MB
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from model import U2NETM # middle size version u2net 99MB
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import cv2
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def IOU(pred, label):
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Iand1 = np.sum(label[:, :]*pred[:, :])
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Ior1 = np.sum(label[:, :]) + np.sum(pred[:, :]) - Iand1
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IoU1 = Iand1/Ior1
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print(Iand1, Ior1)
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return IoU1
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# normalize the predicted SOD probability map
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def normPRED(d):
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ma = torch.max(d)
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mi = torch.min(d)
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dn = (d-mi)/(ma-mi)
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return dn
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def save_output(image_name, pred, d_dir):
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predict = pred
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predict = predict.squeeze()
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predict_np = predict.cpu().data.numpy()
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im = Image.fromarray(predict_np*255).convert('RGB')
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img_name = image_name.split(os.sep)[-1]
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image = io.imread(image_name)
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imo = im.resize((image.shape[1],image.shape[0]),resample=Image.BILINEAR)
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pb_np = np.array(imo)
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aaa = img_name.split(".")
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bbb = aaa[0:-1]
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imidx = bbb[0]
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for i in range(1,len(bbb)):
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imidx = imidx + "." + bbb[i]
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imo.save(d_dir+imidx+'.png')
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def main():
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# --------- 1. get image path and name ---------
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model_name='u2netp' # u2netm
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print("Image name GOTTEN")
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# image_dir = os.path.join(os.getcwd(), 'test_data', 'test_images')
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image_dir = os.path.join(os.getcwd(), 'train_data', 'dataset1', 'img' + os.sep)
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# prediction_dir = os.path.join(os.getcwd(), 'test_data', model_name + '_results' + os.sep)
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prediction_dir = os.path.join(os.getcwd(), 'test_data', model_name + 'iou_img' + os.sep)
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model_dir = os.path.join(os.getcwd(), 'saved_models', model_name, model_name + '.pth')
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label_dir = os.path.join(os.getcwd(), 'train_data', 'dataset1', 'lbl' + os.sep)
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img_name_list = glob.glob(image_dir + os.sep + '*')
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print('Image list GOTTEN:\n', img_name_list)
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# lbl_name_list = []
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# for img_path in img_name_list:
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# img_name = img_path.split(os.sep)[-1]
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# aaa = img_name.split(".")
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# bbb = aaa[0:-1]
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# imidx = bbb[0]
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# for i in range(1, len(bbb)):
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# imidx = imidx + "." + bbb[i]
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# lbl_name_list.append(label_dir + imidx + '.png')
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# --------- 2. dataloader ---------
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# 1. dataloader
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test_salobj_dataset = SalObjDataset(img_name_list = img_name_list,
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lbl_name_list = [],
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transform=transforms.Compose([RescaleT(320),
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ToTensorLab(flag=0)])
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)
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# test_salobj_dataset = SalObjDataset(img_name_list = img_name_list,
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# lbl_name_list = [],
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# transform=transforms.Compose([RescaleT(320),
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# ])
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# )
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test_salobj_dataloader = DataLoader(test_salobj_dataset,
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batch_size=1,
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shuffle=False,
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num_workers=1)
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# --------- 3. model define ---------
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if(model_name =='u2net'):
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print("...load U2NET---173.6 MB")
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net = U2NET(3, 1)
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elif(model_name =='u2netp'):
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print("...load U2NEP---4.7 MB")
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net = U2NETP(3, 1)
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elif(model_name == 'u2netm'):
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net = U2NETM(3, 1)
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print('...load U2NETM---91MB')
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if torch.cuda.is_available():
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# net.load_state_dict(torch.load(model_dir))
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net = torch.load(model_dir)
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net.cuda()
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else:
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net = torch.load(model_dir, map_location='cpu')
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net.eval()
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# --------- 4. inference for each image ---------
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total_iou = 0
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s = 1
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lbl_name_list = []
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for img_path in img_name_list:
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img_name = img_path.split(os.sep)[-1]
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aaa = img_name.split(".")
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bbb = aaa[0:-1]
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imidx = bbb[0]
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for i in range(1, len(bbb)):
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imidx = imidx + "." + bbb[i]
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lbl_name_list.append(label_dir + imidx + '.png')
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for i_test, data_test in enumerate(test_salobj_dataloader):
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print("inferencing:",img_name_list[i_test])
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print("number : ", s)
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inputs_test = data_test['image']
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inputs_test = inputs_test.type(torch.FloatTensor)
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# print(inputs_test.size())
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if torch.cuda.is_available():
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inputs_test = Variable(inputs_test.cuda())
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else:
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inputs_test = Variable(inputs_test)
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d1,d2,d3,d4,d5,d6,d7= net(inputs_test)
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# normalization
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# print("d1.shape", d1.shape) # (1, 1, 320, 320)
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pred = d1[:,0,:,:]
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pred = normPRED(pred)
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pred = pred.squeeze()
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pred = pred.cpu().data.numpy()
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pred = pred * 255 # (320, 320)
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image_name = img_name_list[i_test]
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# print(image_name)
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# image_name = image_name.split(os.sep)[-1]
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pri_image = cv2.imread(image_name, -1)
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pri_image = pri_image[:, :, 0]
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# pri_image = cv2.cvtColor(pri_image, cv2.COLOR_BGR2RGB)
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h, w = pri_image.shape[1], pri_image.shape[0]
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# print("h, w", h, w) # (400, 300)
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pred = cv2.resize(pred, (w, h), interpolation=cv2.INTER_LINEAR)
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# 二值化处理
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for i in range(h):
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for j in range(w):
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if pred[i][j] <= 127:
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pred[i][j] = 0
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if pred[i][j] > 127:
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pred[i][j] = 1
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pred_cv = pred * 255
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cv2.imwrite("pred_iou.jpg", pred_cv)
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# print("pred.shape", pred.shape)
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label_iou = cv2.imread(lbl_name_list[i_test], 0)
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# print("image name: ", image_name)
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# print("label name: ", lbl_name_list[i_test])
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label_iou = cv2.resize(label_iou, (w, h))
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cv2.imwrite("label_iou.png", label_iou)
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for i in range(h):
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for j in range(w):
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if label_iou[i][j] <= 127:
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label_iou[i][j] = 0
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if label_iou[i][j] > 127:
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label_iou[i][j] = 1
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# print("label_iou.shape", label_iou.shape)
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iou = IOU(pred, label_iou)
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total_iou += iou
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miou = total_iou/s
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print("IOU = %5f, MIOU = %5f" % (iou, miou))
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# # save results to test_results folder
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# if not os.path.exists(prediction_dir):
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# os.makedirs(prediction_dir, exist_ok=True)
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# save_output(img_name_list[i_test],pred,prediction_dir)
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s += 1
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del d1,d2,d3,d4,d5,d6,d7
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print("\n")
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if __name__ == "__main__":
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main()
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