数据集预处理存放路劲11111

# -*- coding: utf-8 -*- import xml.etree.ElementTree as ET import os from os import getcwd sets = ['train', 'val', 'test'] classes = ["person"] abs_path = os.getcwd() def convert(size, box): dw = 1. / (size[0]) dh = 1. / (size[1]) x = (box[0] + box[1]) / 2.0 - 1 y = (box[2] + box[3]) / 2.0 - 1 w = box[1] - box[0] h = box[3] - box[2] x = x * dw w = w * dw y = y * dh h = h * dh return x, y, w, h def convert_annotation(image_id): in_file = open('Annotations/%s.xml' % (image_id),encoding='utf-8') out_file = open('labels/%s.txt' % (image_id), 'w',encoding='utf-8') tree = ET.parse(in_file) root = tree.getroot() size = root.find('size') w = int(size.find('width').text) h = int(size.find('height').text) for obj in root.iter('object'): difficult = obj.find('difficult').text cls = obj.find('name').text if cls not in classes or int(difficult) == 1: continue cls_id = classes.index(cls) xmlbox = obj.find('bndbox') b = (float(xmlbox.find('xmin').text), float(xmlbox.find('xmax').text), float(xmlbox.find('ymin').text), float(xmlbox.find('ymax').text)) b1, b2, b3, b4 = b # 标注越界修正 if b2 > w: b2 = w if b4 > h: b4 = h b = (b1, b2, b3, b4) bb = convert((w, h), b) out_file.write(str(cls_id) + " " + " ".join([str(a) for a in bb]) + '\n') wd = getcwd() for image_set in sets: if not os.path.exists('labels/'): os.makedirs('labels/') image_ids = open('hf_txt/%s.txt' % (image_set)).read().strip().split() list_file = open('%s.txt' % (image_set), 'w') for image_id in image_ids: list_file.write(abs_path + '/images/%s.png\n' % (image_id)) convert_annotation(image_id) list_file.close()