Esempio n. 1
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        # Copying config file for book keeping
        copy2(args.config, model_dir)
        with open(model_dir+'args.json', 'w') as f:
            json.dump(vars(args), f) # converting args.namespace to dict

    float_tensor = torch.cuda.FloatTensor if use_cuda else torch.FloatTensor
    torch.manual_seed(exp_config['seed'])
    if use_cuda:
        torch.cuda.manual_seed_all(exp_config['seed'])

    # Init Model
    model = Ensemble(**ensemble_args)
    # TODO Checkpoint loading

    if use_cuda:
        model.cuda()
        model = DataParallel(model)
    print(model)

    if args.resnet:
        cnn = ResNet()

        if use_cuda:
            cnn.cuda()
            cnn = DataParallel(cnn)

    softmax = nn.Softmax(dim=-1)

    # Loss Function and Optimizer
    guesser_loss_function = nn.CrossEntropyLoss() #For Guesser
Esempio n. 2
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def main():
    net = Ensemble(device_id, pretrained=False)

    print ('load snapshot \'%s\' for testing' % args['snapshot'])
    # net.load_state_dict(torch.load('pretrained/R2Net.pth', map_location='cuda:2'))
    # net = load_part_of_model2(net, 'pretrained/R2Net.pth', device_id=2)
    net.load_state_dict(torch.load(os.path.join(ckpt_path, exp_name, args['snapshot'] + '.pth'),
                                   map_location='cuda:' + str(device_id)))
    net.eval()
    net.cuda()
    results = {}

    with torch.no_grad():

        for name, root in to_test.items():

            precision_record, recall_record, = [AvgMeter() for _ in range(256)], [AvgMeter() for _ in range(256)]
            mae_record = AvgMeter()

            if args['save_results']:
                check_mkdir(os.path.join(ckpt_path, exp_name, '(%s) %s_%s' % (exp_name, name, args['snapshot'])))
            img_list = [i_id.strip() for i_id in open(imgs_path)]
            for idx, img_name in enumerate(img_list):
                print('predicting for %s: %d / %d' % (name, idx + 1, len(img_list)))
                print(img_name)

                if name == 'VOS' or name == 'DAVSOD':
                    img = Image.open(os.path.join(root, img_name + '.png')).convert('RGB')
                else:
                    img = Image.open(os.path.join(root, img_name + '.jpg')).convert('RGB')
                shape = img.size
                img = img.resize(args['input_size'])
                img_var = Variable(img_transform(img).unsqueeze(0), volatile=True).cuda()
                start = time.time()
                outputs_a, outputs_c = net(img_var)
                a_out1u, a_out2u, a_out2r, a_out3r, a_out4r, a_out5r = outputs_a  # F3Net
                # b_outputs0, b_outputs1 = outputs_b  # CPD
                c_outputs0, c_outputs1, c_outputs2, c_outputs3, c_outputs4 = outputs_c  # RAS
                prediction = torch.sigmoid(c_outputs0)
                end = time.time()
                print('running time:', (end - start))
                # e = Erosion2d(1, 1, 5, soft_max=False).cuda()
                # prediction2 = e(prediction)
                #
                # precision2 = to_pil(prediction2.data.squeeze(0).cpu())
                # precision2 = prediction2.data.squeeze(0).cpu().numpy()
                # precision2 = precision2.resize(shape)
                # prediction2 = np.array(precision2)
                # prediction2 = prediction2.astype('float')

                precision = to_pil(prediction.data.squeeze(0).cpu())
                precision = precision.resize(shape)
                prediction = np.array(precision)
                prediction = prediction.astype('float')

                # plt.style.use('classic')
                # plt.subplot(1, 2, 1)
                # plt.imshow(prediction)
                # plt.subplot(1, 2, 2)
                # plt.imshow(precision2[0])
                # plt.show()

                prediction = MaxMinNormalization(prediction, prediction.max(), prediction.min()) * 255.0
                prediction = prediction.astype('uint8')
                # if args['crf_refine']:
                #     prediction = crf_refine(np.array(img), prediction)

                gt = np.array(Image.open(os.path.join(gt_root, img_name + '.png')).convert('L'))
                precision, recall, mae = cal_precision_recall_mae(prediction, gt)
                for pidx, pdata in enumerate(zip(precision, recall)):
                    p, r = pdata
                    precision_record[pidx].update(p)
                    recall_record[pidx].update(r)
                mae_record.update(mae)

                if args['save_results']:
                    folder, sub_name = os.path.split(img_name)
                    save_path = os.path.join(ckpt_path, exp_name, '(%s) %s_%s' % (exp_name, name, args['snapshot']), folder)
                    if not os.path.exists(save_path):
                        os.makedirs(save_path)
                    Image.fromarray(prediction).save(os.path.join(save_path, sub_name + '.png'))

            fmeasure = cal_fmeasure([precord.avg for precord in precision_record],
                                    [rrecord.avg for rrecord in recall_record])

            results[name] = {'fmeasure': fmeasure, 'mae': mae_record.avg}

    print ('test results:')
    print (results)
    log_path = os.path.join('result_all.txt')
    open(log_path, 'a').write(exp_name + ' ' + args['snapshot'] + '\n')
    open(log_path, 'a').write(str(results) + '\n\n')