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from lxml.etree import Element, SubElement, tostring
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def create_xml(boxs,img_shape,xml_path):
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"""
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创建xml文件，依次写入xml文件必备关键字
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:param boxs: txt文件中的box
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:param img_shape: 图片信息，xml中需要写入WHC
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:return:
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"""
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node_root = Element('annotation')
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node_folder = SubElement(node_root, 'folder')
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node_folder.text = 'Images'
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node_filename = SubElement(node_root, 'filename')
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node_filename.text = str(img_shape[3])
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node_size = SubElement(node_root, 'size')
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node_width = SubElement(node_size, 'width')
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node_width.text = str(img_shape[1])
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node_height = SubElement(node_size, 'height')
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node_height.text = str(img_shape[0])
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node_depth = SubElement(node_size, 'depth')
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node_depth.text = str(img_shape[2])
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if len(boxs)>=1: # 循环写入box
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for box in boxs:
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node_object = SubElement(node_root, 'object')
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node_name = SubElement(node_object, 'name')
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# if str(list_[4]) == "person": # 根据条件筛选需要标注的标签,例如这里只标记person这类，不符合则直接跳过
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# node_name.text = str(list_[4])
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# else:
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# continue
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node_name.text = str(list(box.keys())[0])
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node_difficult = SubElement(node_object, 'difficult')
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node_difficult.text = '0'
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node_bndbox = SubElement(node_object, 'bndbox')
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node_xmin = SubElement(node_bndbox, 'xmin')
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node_xmin.text = str(int(list(box.values())[0][0]))
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node_ymin = SubElement(node_bndbox, 'ymin')
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node_ymin.text = str(int(list(box.values())[0][1]))
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node_xmax = SubElement(node_bndbox, 'xmax')
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node_xmax.text = str(int(list(box.values())[0][2]))
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node_ymax = SubElement(node_bndbox, 'ymax')
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node_ymax.text = str(int(list(box.values())[0][3]))
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xml = tostring(node_root, pretty_print=True) # 格式化显示，该换行的换行
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file_name = img_shape[3].split(".")[0]
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filename = xml_path+"/{}.xml".format(file_name)
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f = open(filename, "wb")
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f.write(xml)
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f.close()
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