55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
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import xml.etree.ElementTree as ET
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import pickle
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import os
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from os import listdir, getcwd
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from os.path import join
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def convert(size, box):
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x_center = (box[0] + box[1]) / 2.0
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y_center = (box[2] + box[3]) / 2.0
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x = x_center / size[0]
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y = y_center / size[1]
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w = (box[1] - box[0]) / size[0]
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h = (box[3] - box[2]) / size[1]
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return (x, y, w, h)
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def convert_annotation(xml_files_path, save_txt_files_path, classes):
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xml_files = os.listdir(xml_files_path)
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print(xml_files)
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for xml_name in xml_files:
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print(xml_name)
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xml_file = os.path.join(xml_files_path, xml_name)
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out_txt_path = os.path.join(save_txt_files_path, xml_name.split('.')[0] + '.txt')
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out_txt_f = open(out_txt_path, 'w')
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tree = ET.parse(xml_file)
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root = tree.getroot()
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size = root.find('size')
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w = int(size.find('width').text)
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h = int(size.find('height').text)
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for obj in root.iter('object'):
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difficult = obj.find('difficult').text
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cls = obj.find('name').text
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if cls not in classes or int(difficult) == 1:
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continue
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cls_id = classes.index(cls)
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xmlbox = obj.find('bndbox')
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b = (float(xmlbox.find('xmin').text), float(xmlbox.find('xmax').text), float(xmlbox.find('ymin').text),
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float(xmlbox.find('ymax').text))
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# b=(xmin, xmax, ymin, ymax)
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print(w, h, b)
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bb = convert((w, h), b)
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out_txt_f.write(str(cls_id) + " " + " ".join([str(a) for a in bb]) + '\n')
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if __name__ == "__main__":
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# 把标签名，全部写这里，用逗号隔开
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classes1 = ['替换成自己的标签名']
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# 2、voc格式的xml标签文件路径
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xml_files1 = r'替换成xml文件夹路径'
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# 3、转化为yolo格式的txt标签文件存储路径
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save_txt_files1 = r'替换txt标签保存的路径'
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convert_annotation(xml_files1, save_txt_files1, classes1)
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