mirror of https://github.com/AlexeyAB/darknet.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
2.0 KiB
56 lines
2.0 KiB
import xml.etree.ElementTree as ET |
|
import pickle |
|
import os |
|
from os import listdir, getcwd |
|
from os.path import join |
|
|
|
sets=[('2012', 'val'),('2007', 'test')] |
|
|
|
classes = ["aeroplane", "bicycle", "bird", "boat", "bottle", "bus", "car", "cat", "chair", "cow", "diningtable", "dog", "horse", "motorbike", "person", "pottedplant", "sheep", "sofa", "train", "tvmonitor"] |
|
|
|
|
|
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(year, image_id): |
|
in_file = open('VOCdevkit/VOC%s/Annotations/%s.xml'%(year, image_id)) |
|
out_file = open('VOCdevkit/VOC%s/labels/difficult_%s.txt'%(year, image_id), 'w') |
|
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) == 0: |
|
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)) |
|
bb = convert((w,h), b) |
|
out_file.write(str(cls_id) + " " + " ".join([str(a) for a in bb]) + '\n') |
|
|
|
wd = getcwd() |
|
|
|
for year, image_set in sets: |
|
if not os.path.exists('VOCdevkit/VOC%s/labels/'%(year)): |
|
os.makedirs('VOCdevkit/VOC%s/labels/'%(year)) |
|
image_ids = open('VOCdevkit/VOC%s/ImageSets/Main/%s.txt'%(year, image_set)).read().strip().split() |
|
list_file = open('difficult_%s_%s.txt'%(year, image_set), 'w') |
|
for image_id in image_ids: |
|
list_file.write('%s/VOCdevkit/VOC%s/JPEGImages/difficult_%s.jpg\n'%(wd, year, image_id)) |
|
convert_annotation(year, image_id) |
|
list_file.close() |
|
|
|
|