for img_test in img_list: img_test_path = os.path.join(path_test, img_test) img_PIL = Image.open(img_test_path) img_tensor4D = transform(img_PIL) img_tensor4D.unsqueeze_(0) img_tensor4D = img_tensor4D.to(device) out = net(img_tensor4D) _, pred_test = torch.max(out, dim=1) new_img_path = os.path.join(new_dirs, labels_list[pred_test]) # 将原始图片复制到新的路径和文件名。 shutil.copyfile(img_test_path, new_img_path+'.jepg')这段代码怎么总是不按预期效果来

from pdb import set_trace as st import os import numpy as np import cv2 import argparse parser = argparse.ArgumentParser('create image pairs') parser.add_argument('--fold_A', dest='fold_A', help='input directory for image A', type=str, default='../dataset/50kshoes_edges') parser.add_argument('--fold_B', dest='fold_B', help='input directory for image B', type=str, default='../dataset/50kshoes_jpg') parser.add_argument('--fold_AB', dest='fold_AB', help='output directory', type=str, default='../dataset/test_AB') parser.add_argument('--num_imgs', dest='num_imgs', help='number of images',type=int, default=1000000) parser.add_argument('--use_AB', dest='use_AB', help='if true: (0001_A, 0001_B) to (0001_AB)',action='store_true') args = parser.parse_args() for arg in vars(args): print('[%s] = ' % arg, getattr(args, arg)) splits = os.listdir(args.fold_A) for sp in splits: img_fold_A = os.path.join(args.fold_A, sp) img_fold_B = os.path.join(args.fold_B, sp) img_list = os.listdir(img_fold_A) if args.use_AB: img_list = [img_path for img_path in img_list if '_A.' in img_path] num_imgs = min(args.num_imgs, len(img_list)) print('split = %s, use %d/%d images' % (sp, num_imgs, len(img_list))) img_fold_AB = os.path.join(args.fold_AB, sp) if not os.path.isdir(img_fold_AB): os.makedirs(img_fold_AB) print('split = %s, number of images = %d' % (sp, num_imgs)) for n in range(num_imgs): name_A = img_list[n] path_A = os.path.join(img_fold_A, name_A) if args.use_AB: name_B = name_A.replace('_A.', '_B.') else: name_B = name_A path_B = os.path.join(img_fold_B, name_B) if os.path.isfile(path_A) and os.path.isfile(path_B): name_AB = name_A if args.use_AB: name_AB = name_AB.replace('_A.', '.') # remove _A path_AB = os.path.join(img_fold_AB, name_AB) im_A = cv2.imread(path_A, cv2.IMREAD_COLOR) im_B = cv2.imread(path_B, cv2.IMREAD_COLOR) im_AB = np.concatenate([im_A, im_B], 1) cv2.imwrite(path_AB, im_AB)，解释上述代码，并告诉我怎么设置文件夹格式

1. 引入必要的库：pdb、os、numpy、cv2和argparse。 2. 使用argparse来解析命令行参数，包括输入目录和输出目录等。 3. 遍历输入目录中的所有文件夹，并获取每个文件夹中的图像列表。 4. 根据命令行参数，选择要...

for i in current_data_index_list: src_img_path = os.path.join(current_class_data_path, current_all_data[i]) if current_idx <= train_stop_flag: copy2(src_img_path, train_folder) # print("{}复制到了{}".format(src_img_path, train_folder)) train_num = train_num + 1 elif (current_idx > train_stop_flag) and (current_idx <= val_stop_flag): copy2(src_img_path, val_folder) # print("{}复制到了{}".format(src_img_path, val_folder)) val_num = val_num + 1 else: copy2(src_img_path, test_folder) # print("{}复制到了{}".format(src_img_path, test_folder)) test_num = test_num + 1 current_idx = current_idx + 1 解释代码

- copy2(src_img_path, test_folder)：将当前图片复制到测试集文件夹中。 - test_num = test_num + 1：测试集中已经分配的图片数量加1。 - current_idx = current_idx + 1：当前索引加1，进入下一个图片的处理...

def add_file(file_path, file_name, move_path): """ file_path为图片文件的上上层目录。图片的上层目录可能有多个文件夹用于存放多个图片。因此要判断一下图片的上层目录是不是文件夹，如果是，就再往下一级目录查找图片，并修改名称。如果不是，则直接复制图片移动。包括：重命名、移动文件、创建文件三种。 """ file_list = os.listdir(file_path) print(file_list) for file in file_list: # 得到图片文件上一层的目录文件夹,也可能直接是图片文件，要判断一下 file_path_final = os.path.join(file_path, file) if os.path.isdir(file_path_final): os.chdir(file_path_final) # 得到图片的ID、path img_file_list = os.listdir(file_path_final) if "test.txt" in img_file_list: break # 修改图片的名字 for img in img_file_list: os.rename(img, "{}_{}.JPG".format(file, img.split(".")[0])) print("{}重命名完成".format(file)) # 将图片上一级copy到asset目录下 new_img_list = os.listdir(file_path) for dir in new_img_list: shutil.copy(os.path.join(file_path, dir), move_path) print("{}copy完成".format(file)) with open(os.path.join(file_path_final, file_name), 'w') as fo: fo.write("") else: # copy到asset目录下 shutil.copy(file_path_final, move_path) print("{}copy完成".format(file)) os.chdir(file_path) with open(file_name, 'w') as fo: fo.write("")

具体来说，这个函数接受三个参数：file_path表示图片文件的上上层目录，file_name表示要在文件夹中创建的空文件的名称，move_path表示要移动到的目标目录。函数首先获取file_path目录下的所有文件列表，然后遍历这...

import os import random import numpy as np import cv2 import keras from create_unet import create_model img_path = 'data_enh/img' mask_path = 'data_enh/mask' # 训练集与测试集的切分 img_files = np.array(os.listdir(img_path)) data_num = len(img_files) train_num = int(data_num * 0.8) train_ind = random.sample(range(data_num), train_num) test_ind = list(set(range(data_num)) - set(train_ind)) train_ind = np.array(train_ind) test_ind = np.array(test_ind) train_img = img_files[train_ind] # 训练的数据 test_img = img_files[test_ind] # 测试的数据 def get_mask_name(img_name): mask = [] for i in img_name: mask_name = i.replace('.jpg', '.png') mask.append(mask_name) return np.array(mask) train_mask = get_mask_name(train_img) test_msak = get_mask_name(test_img) def generator(img, mask, batch_size): num = len(img) while True: IMG = [] MASK = [] for i in range(batch_size): index = np.random.choice(num) img_name = img[index] mask_name = mask[index] img_temp = os.path.join(img_path, img_name) mask_temp = os.path.join(mask_path, mask_name) temp_img = cv2.imread(img_temp) temp_mask = cv2.imread(mask_temp, 0)/255 temp_mask = np.reshape(temp_mask, [256, 256, 1]) IMG.append(temp_img) MASK.append(temp_mask) IMG = np.array(IMG) MASK = np.array(MASK) yield IMG, MASK # train_data = generator(train_img, train_mask, 32) # temp_data = train_data.next() # 计算dice系数 def dice_coef(y_true, y_pred): y_true_f = keras.backend.flatten(y_true) y_pred_f = keras.backend.flatten(y_pred) intersection = keras.backend.sum(y_true_f * y_pred_f) area_true = keras.backend.sum(y_true_f * y_true_f) area_pred = keras.backend.sum(y_pred_f * y_pred_f) dice = (2 * intersection + 1)/(area_true + area_pred + 1) return dice # 自定义损失函数，dice_loss def dice_coef_loss(y_true, y_pred): return 1 - dice_coef(y_true, y_pred) # 模型的创建 model = create_model() # 模型的编译 model.compile(optimizer='Adam', loss=dice_coef_loss, metrics=[dice_coef]) # 模型的训练 history = model.fit_generator(generator(train_img, train_mask, 4), steps_per_epoch=100, epochs=10, validation_data=generator(test_img, test_msak, 4), validation_steps=4 ) # 模型的保存 model.save('unet_model.h5') # 模型的读取 model = keras.models.load_model('unet_model.h5', custom_objects={'dice_coef_loss': dice_coef_loss, 'dice_coef': dice_coef}) # 获取测试数据 test_generator = generator(test_img, test_msak, 32) img, mask = test_generator.next() # 模型的测试 model.evaluate(img, mask) # [0.11458712816238403, 0.885412871837616] 94%

上面这段代码是在导入一些库。它导入了 OS 库，Random 库，NumPy 库，CV2 库，Keras 库，以及一个叫做 Create_unet 的...它还定义了两个字符串变量：img_path 和 mask_path，分别存储了图像数据和掩码数据的路径。

这是对单个文件进行预测“import os import json import torch from PIL import Image from torchvision import transforms import matplotlib.pyplot as plt from model import convnext_tiny as create_model def main(): device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu") print(f"using {device} device.") num_classes = 5 img_size = 224 data_transform = transforms.Compose( [transforms.Resize(int(img_size * 1.14)), transforms.CenterCrop(img_size), transforms.ToTensor(), transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225])]) # load image img_path = "../tulip.jpg" assert os.path.exists(img_path), "file: '{}' dose not exist.".format(img_path) img = Image.open(img_path) plt.imshow(img) # [N, C, H, W] img = data_transform(img) # expand batch dimension img = torch.unsqueeze(img, dim=0) # read class_indict json_path = './class_indices.json' assert os.path.exists(json_path), "file: '{}' dose not exist.".format(json_path) with open(json_path, "r") as f: class_indict = json.load(f) # create model model = create_model(num_classes=num_classes).to(device) # load model weights model_weight_path = "./weights/best_model.pth" model.load_state_dict(torch.load(model_weight_path, map_location=device)) model.eval() with torch.no_grad(): # predict class output = torch.squeeze(model(img.to(device))).cpu() predict = torch.softmax(output, dim=0) predict_cla = torch.argmax(predict).numpy() print_res = "class: {} prob: {:.3}".format(class_indict[str(predict_cla)], predict[predict_cla].numpy()) plt.title(print_res) for i in range(len(predict)): print("class: {:10} prob: {:.3}".format(class_indict[str(i)], predict[i].numpy())) plt.show() if name == 'main': main()”，改为对指定文件夹下的左右文件进行预测，并绘制混淆矩阵

for root, dirs, files in os.walk(folder_path): for file in files: img_path = os.path.join(root, file) assert os.path.exists(img_path), "file: '{}' dose not exist.".format(img_path) img = Image....

train_folder = os.path.join(os.path.join(target_data_folder, 'train'), class_name) val_folder = os.path.join(os.path.join(target_data_folder, 'val'), class_name) test_folder = os.path.join(os.path.join(target_data_folder, 'test'), class_name) train_stop_flag = current_data_length * train_scale val_stop_flag = current_data_length * (train_scale + val_scale) current_idx = 0 train_num = 0 val_num = 0 test_num = 0 for i in current_data_index_list: src_img_path = os.path.join(current_class_data_path, current_all_data[i]) if current_idx <= train_stop_flag: copy2(src_img_path, train_folder) # print("{}复制到了{}".format(src_img_path, train_folder)) train_num = train_num + 1 elif (current_idx > train_stop_flag) and (current_idx <= val_stop_flag): copy2(src_img_path, val_folder) # print("{}复制到了{}".format(src_img_path, val_folder)) val_num = val_num + 1 else: copy2(src_img_path, test_folder) # print("{}复制到了{}".format(src_img_path, test_folder)) test_num = test_num + 1 current_idx = current_idx + 1 print("*{}*****".format(class_name)) print( "{}类按照{}：{}：{}的比例划分完成，一共{}张图片".format(class_name, train_scale, val_scale, test_scale, current_data_length)) print("训练集{}：{}张".format(train_folder, train_num)) print("验证集{}：{}张".format(val_folder, val_num)) print("测试集{}：{}张".format(test_folder, test_num))解释这段代码

代码中使用了三个文件夹路径，即train_folder、val_folder和test_folder，分别对应训练集、验证集和测试集的存储路径。这些路径是根据类别名称和目标数据文件夹路径拼接而成。接下来，代码使用了train_...

# 文件保存路径 file_path = './test' create_file(file_path) # 获取图片 for i in img_list: try: img_url = i.xpath('./@src')[0] except: img_url = i.xpath('./@data-src')[0] # 文件名称 file_name = f'{file_path}/page_{cnt}.jpg' print(file_name, img_url) # 下载保存图片 resp = requests.get(img_url) with open(file_name, 'wb') as f: f.write(resp.content) cnt += 1修改这部分代码，使得存储文件名和路径分开来

for i in img_list: try: img_url = i.xpath('./@src')[0] except: img_url = i.xpath('./@data-src')[0] # 文件名称 file_name = f'page_{cnt}.jpg' print(file_name, img_url) # 下载保存图片 resp = ...

import torch, os, cv2 from model.model import parsingNet from utils.common import merge_config from utils.dist_utils import dist_print import torch import scipy.special, tqdm import numpy as np import torchvision.transforms as transforms from data.dataset import LaneTestDataset from data.constant import culane_row_anchor, tusimple_row_anchor if name == "main": torch.backends.cudnn.benchmark = True args, cfg = merge_config() dist_print('start testing...') assert cfg.backbone in ['18','34','50','101','152','50next','101next','50wide','101wide'] if cfg.dataset == 'CULane': cls_num_per_lane = 18 elif cfg.dataset == 'Tusimple': cls_num_per_lane = 56 else: raise NotImplementedError net = parsingNet(pretrained = False, backbone=cfg.backbone,cls_dim = (cfg.griding_num+1,cls_num_per_lane,4), use_aux=False).cuda() # we dont need auxiliary segmentation in testing state_dict = torch.load(cfg.test_model, map_location='cpu')['model'] compatible_state_dict = {} for k, v in state_dict.items(): if 'module.' in k: compatible_state_dict[k[7:]] = v else: compatible_state_dict[k] = v net.load_state_dict(compatible_state_dict, strict=False) net.eval() img_transforms = transforms.Compose([ transforms.Resize((288, 800)), transforms.ToTensor(), transforms.Normalize((0.485, 0.456, 0.406), (0.229, 0.224, 0.225)), ]) if cfg.dataset == 'CULane': splits = ['test0_normal.txt', 'test1_crowd.txt', 'test2_hlight.txt', 'test3_shadow.txt', 'test4_noline.txt', 'test5_arrow.txt', 'test6_curve.txt', 'test7_cross.txt', 'test8_night.txt'] datasets = [LaneTestDataset(cfg.data_root,os.path.join(cfg.data_root, 'list/test_split/'+split),img_transform = img_transforms) for split in splits] img_w, img_h = 1640, 590 row_anchor = culane_row_anchor elif cfg.dataset == 'Tusimple': splits = ['test.txt'] datasets = [LaneTestDataset(cfg.data_root,os.path.join(cfg.data_root, split),img_transform = img_transforms) for split in splits] img_w, img_h = 1280, 720 row_anchor = tusimple_row_anchor else: raise NotImplementedError for split, dataset in zip(splits, datasets): loader = torch.utils.data.DataLoader(dataset, batch_size=1, shuffle = False, num_workers=1) fourcc = cv2.VideoWriter_fourcc('MJPG') print(split[:-3]+'avi') vout = cv2.VideoWriter(split[:-3]+'avi', fourcc , 30.0, (img_w, img_h)) for i, data in enumerate(tqdm.tqdm(loader)): imgs, names = data imgs = imgs.cuda() with torch.no_grad(): out = net(imgs) col_sample = np.linspace(0, 800 - 1, cfg.griding_num) col_sample_w = col_sample[1] - col_sample[0] out_j = out[0].data.cpu().numpy() out_j = out_j[:, ::-1, :] prob = scipy.special.softmax(out_j[:-1, :, :], axis=0) idx = np.arange(cfg.griding_num) + 1 idx = idx.reshape(-1, 1, 1) loc = np.sum(prob idx, axis=0) out_j = np.argmax(out_j, axis=0) loc[out_j == cfg.griding_num] = 0 out_j = loc # import pdb; pdb.set_trace() vis = cv2.imread(os.path.join(cfg.data_root,names[0])) for i in range(out_j.shape[1]): if np.sum(out_j[:, i] != 0) > 2: for k in range(out_j.shape[0]): if out_j[k, i] > 0: ppp = (int(out_j[k, i] * col_sample_w * img_w / 800) - 1, int(img_h * (row_anchor[cls_num_per_lane-1-k]/288)) - 1 ) cv2.circle(vis,ppp,5,(0,255,0),-1) vout.write(vis) vout.release()

这段代码使用了PyTorch、OpenCV等库，从模型模块中导入了parsingNet模型，从常用工具模块中导入了merge_config和dist_print等函数。代码还使用了LaneTestDataset数据集和culane_row_anchor、tusimple_row_anchor常量...

if (it+1) % args.sample_interval == 0: attgan.eval() with torch.no_grad(): samples = [fixed_img_a] for i, att_b in enumerate(sample_att_b_list): att_b_ = (att_b * 2 - 1) * args.thres_int if i > 0: att_b_[..., i - 1] = att_b_[..., i - 1] * args.test_int / args.thres_int samples.append(attgan.G(fixed_img_a, att_b_)) samples = torch.cat(samples, dim=3) writer.add_image('sample', vutils.make_grid(samples, nrow=1, normalize=True, value_range=(-1., 1.)), it+1) vutils.save_image(samples, os.path.join( 'output', args.experiment_name, 'sample_training', 'Epoch_({:d})_({:d}of{:d}).jpg'.format(epoch, it%it_per_epoch+1, it_per_epoch) ), nrow=1, normalize=True,value_range=(-1., 1.)) it += 1 我这里面有没有模型保存的命令

torch.save(attgan.state_dict(), 'path_to_save_model') # 保存模型参数请注意，上述代码只是示例，并且需要根据您的具体情况进行适当修改。确保在合适的时间点和位置保存模型，以便在需要时重新加载和使用...

if (it+1) % args.save_interval == 0: # To save storage space, I only checkpoint the weights of G. # If you'd like to keep weights of G, D, optim_G, optim_D, # please use save() instead of saveG(). attgan.saveG(os.path.join( 'output', args.experiment_name, 'checkpoint', 'weights.{:d}.pth'.format(epoch) )) # attgan.save(os.path.join( # 'output', args.experiment_name, 'checkpoint', 'weights.{:d}.pth'.format(epoch) # )) if (it+1) % args.sample_interval == 0: attgan.eval() with torch.no_grad(): samples = [fixed_img_a] for i, att_b in enumerate(sample_att_b_list): att_b_ = (att_b * 2 - 1) * args.thres_int if i > 0: att_b_[..., i - 1] = att_b_[..., i - 1] * args.test_int / args.thres_int samples.append(attgan.G(fixed_img_a, att_b_)) samples = torch.cat(samples, dim=3) writer.add_image('sample', vutils.make_grid(samples, nrow=1, normalize=True, range=(-1., 1.)), it+1) vutils.save_image(samples, os.path.join( 'output', args.experiment_name, 'sample_training', 'Epoch_({:d})_({:d}of{:d}).jpg'.format(epoch, it%it_per_epoch+1, it_per_epoch) ), nrow=1, normalize=True, range=(-1., 1.)) it += 1

os.path.join() 函数用于构建保存路径，其中包括实验名称、检查点目录和文件名。文件名使用了格式化字符串来包含当前 epoch 的值。第二个条件语句块中的条件 (it+1) % args.sample_interval == 0 检查是否到了...

with h5py.File('cifar10_test.h5', 'r') as f:如何读取文件夹的图片

for filename in os.listdir(folder_path): if filename.endswith(".jpg") or filename.endswith(".png"): image_path = os.path.join(folder_path, filename) img = Image.open(image_path) img_array = np....

如何根据图片名把文件夹中的100张图片按顺序生成和mpii数据集HRNet网络中的test.json一样的包含image_id,scale,center的json文件呢,python代码应该怎么写

image_path = os.path.join(folder_path, filename) # 打开图片并获取大小 with Image.open(image_path) as img: width, height = img.size # 计算缩放比例 scale = max(width, height) / max(image_size) ...

实现中文手写数字识别，读取data文件夹里的图片并提取标签里的数字，读取chinese_mnist.csv文件里的并提取character。将图片进行预处理，其中包括该图片大小：150*150；添加RGB三通道，数据归一化；再进行划分测试集与训练集，其比例为2：8；再进行CNN神经网络的搭建，再进行模型编译，模型训练。最后随机选取一张图片进行实现图像识别

img_path = os.path.join(data_path, filename) im = Image.open(img_path) images.append(im) label = int(filename.split('_')[0]) labels.append(label) # 提取character characters = csv_data['character...

如何把deepfashion数据集进行数据处理，请帮我编写一个示例

img_path = os.path.join(data_dir, 'Img', 'test', line[0]) bbox = line[1:] img = cv2.imread(img_path) img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) img = cv2.resize(img, img_size) X_test.append(img)...

arr_img_3d = np.array(list_img_3d) np.savez(os.path.join("img_dir", "test_b9.npz"), vol = arr_img_3d)

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arr_img_3d = np.array(list_img_3d) np.savez(os.path.join("img_dir", "test_b9.npz"), vol = arr_img_3d)

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