VOC格式数据集转YOLO格式数据集

代码

import os.path
import xml.etree.ElementTree as ET
 
class_names = ['palm','stone','scissor','awesome','heartB','OK','ROCK','one','swear','thanks','heartA','heartC','good','bad','pray','call','take_picture','salute']
 
xmlpath='/data/tts/yohji.qian/dataset/hand18_1201/labels_voc/' #原xml路径
txtpath='/data/tts/yohji.qian/dataset/hand18_1201/labels/'     #转换后txt文件存放路径 
files = []
 
for root, dirs, files in os.walk(xmlpath):
    None
 
number = len(files)
print(number)
i = 0
while i < number:
 
    name = files[i][0:-4]
    xml_name = name + ".xml"
    txt_name = name + ".txt"
    xml_file_name = xmlpath + xml_name
    txt_file_name = txtpath + txt_name
 
    xml_file = open(xml_file_name)
    tree = ET.parse(xml_file)
    root = tree.getroot()
    filename = root.find('filename').text
 
    image_name = root.find('filename').text
    w = int(root.find('size').find('width').text)
    h = int(root.find('size').find('height').text)
 
    f_txt = open(txt_file_name, 'w+')
    content = ""
 
    first = True
 
    for obj in root.iter('object'):
 
        name = obj.find('name').text
        class_num = class_names.index(name)
 
        xmlbox = obj.find('bndbox')
 
        x1 = int(xmlbox.find('xmin').text)
        x2 = int(xmlbox.find('xmax').text)
        y1 = int(xmlbox.find('ymin').text)
        y2 = int(xmlbox.find('ymax').text)
 
        if first:
            content += str(class_num) + " " + \
                       str((x1 + x2) / 2 / w) + " " + str((y1 + y2) / 2 / h) + " " + \
                       str((x2 - x1) / w) + " " + str((y2 - y1) / h)
            first = False
        else:
            content += "\n" + \
                       str(class_num) + " " + \
                       str((x1 + x2) / 2 / w) + " " + str((y1 + y2) / 2 / h) + " " + \
                       str((x2 - x1) / w) + " " + str((y2 - y1) / h)
 
    # print(str(i / (number - 1) * 100) + "%\n")
    print(content)
    f_txt.write(content)
    f_txt.close()
    xml_file.close()
    i += 1
 
print("done!")

参考：https://blog.csdn.net/qianchenghaozi/article/details/110523327