labelmejson标签转换

如果是单张图进行转换，则使用命令：labelme_json_to_dataset<图片路径>.json

如果是多张图，则使用下面程序替换将json转变为文件夹（内含label.png,image.png,label_vision等）限于二分类：

import argparse
import json
import os
import os.path as osp
import warnings
 
import numpy as np
import PIL.Image
import yaml
 
from labelme import utils
 
 
def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('json_file')
    parser.add_argument('-o', '--out', default=None)
    args = parser.parse_args()
 
    json_file = args.json_file
 
    list = os.listdir(json_file) 
    for i in range(0, len(list)):
        path = os.path.join(json_file, list[i])
        if os.path.isfile(path):
            data = json.load(open(path))
            img = utils.img_b64_to_array(data['imageData'])
            lbl, lbl_names = utils.labelme_shapes_to_label(img.shape, data['shapes'])
 
            captions = ['%d: %s' % (l, name) for l, name in enumerate(lbl_names)]
            lbl_viz = utils.draw_label(lbl, img, captions)
            out_dir = osp.basename(list[i]).replace('.', '_')
            out_dir = osp.join(osp.dirname(list[i]), out_dir)
            if not osp.exists(out_dir):
                os.mkdir(out_dir)
 
            PIL.Image.fromarray(img).save(osp.join(out_dir, 'img.png'))
            PIL.Image.fromarray(lbl).save(osp.join(out_dir, 'label.png'))
            PIL.Image.fromarray(lbl_viz).save(osp.join(out_dir, 'label_viz.png'))
 
            with open(osp.join(out_dir, 'label_names.txt'), 'w') as f:
                for lbl_name in lbl_names:
                    f.write(lbl_name + '\n')
 
            warnings.warn('info.yaml is being replaced by label_names.txt')
            info = dict(label_names=lbl_names)
            with open(osp.join(out_dir, 'info.yaml'), 'w') as f:
                yaml.safe_dump(info, f, default_flow_style=False)
 
            print('Saved to: %s' % out_dir)
if __name__ == '__main__':
    main()

然后将image.png以及label.png保存到另外的文件夹：

import cv2 as cv  
import random  
import glob  
import os
from PIL import Image
import shutil

def get_samples(foldername,savePath):
    print('savePath:',savePath)
    if os.path.exists(savePath) is False:
        os.makedirs(savePath)
   
    filenames = os.listdir(foldername)
            
    for filename in filenames:  
        full_path = os.path.join(foldername, filename)
        new_name = filename[:-5]+'.png'
        label_png = os.listdir(full_path)[3]#如果报错或者出来的不对，可以改一下数值
        #os.rename(os.path.join(filename, label_png),os.path.join(filename, name))
        shutil.copy(os.path.join(full_path, label_png), os.path.join(savePath, label_png))
        os.rename(os.path.join(savePath, label_png),os.path.join(savePath, new_name))
        #print(os.listdir(filename))
        
savePath = '/home/customer/Desktop/1/chage/'  
get_samples('/home/customer/Desktop/1/ori/',savePath )