カタログ紹介
コード
import os
import cv2
import random
from tqdm import tqdm
import argparse
import xml.etree.ElementTree as ET
def xml_reader(filename):
""" Parse a PASCAL VOC xml file """
tree = ET.parse(filename)
objects = []
for obj in tree.findall('object'):
obj_struct = {
}
obj_struct['name'] = obj.find('name').text
bbox = obj.find('bndbox')
obj_struct['bbox'] = [int(bbox.find('xmin').text),
int(bbox.find('ymin').text),
int(bbox.find('xmax').text),
int(bbox.find('ymax').text)]
objects.append(obj_struct)
return objects
def get_image_list(image_dir, suffix=['bmp', 'jpg']):
'''get all image path ends with suffix'''
if not os.path.exists(image_dir):
print("PATH:%s not exists" % image_dir)
return []
imglist = []
for root, sdirs, files in os.walk(image_dir):
if not files:
continue
for filename in files:
filepath = os.path.join(root, filename)
if filename.split('.')[-1] in suffix:
imglist.append(filepath)
return imglist
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='check data')
parser.add_argument('--input', dest='input', help='The input dir of images', type=str)
parser.add_argument('--output', dest='output', default='temp', help='The output dir of images', type=str)
parser.add_argument('--num', dest='num', default=50, help='The number of images you want to check', type=int)
args = parser.parse_args()
if not os.path.exists(args.output):
os.makedirs(args.output)
img_list = get_image_list(args.input)
img_list = random.sample(img_list, args.num)
for img_path in tqdm(img_list):
img = cv2.imread(img_path)
if img is None or not img.any():
continue
xml_path = img_path.replace("yes", "xml").replace(".bmp", ".xml").replace(".jpg", ".xml")
objects = xml_reader(xml_path)
if len(objects) == 0:
continue
for obj in objects:
name = obj['name']
box = obj['bbox']
p1 = (box[0], box[1])
p2 = (box[2], box[3])
p3 = (max(box[0], 15), max(box[1], 15))
cv2.rectangle(img, p1, p2, (0, 0, 255), 2)
cv2.putText(img, name, p3, cv2.FONT_ITALIC, 1, (0, 255, 0), 2)
img_name = os.path.basename(img_path)
cv2.imwrite(os.path.join(args.output, img_name), img)