windows+label使用 2(xml檔案 轉換為txt檔案)
1 在本部落格上篇windows+label使用1後可以生成label的xml檔案後:
2 在darket.exe所在的當前目錄下,新建VOCdevkit資料夾
然後在VOCdevkit資料夾下新建資料夾VOC2018
然後在VOC2018資料夾下新建以下四個資料夾
將本部落格第一步所生成的xml檔案全部複製到Annotations裡,所用到的圖片都放在JPEGimages裡
然後在imageSets裡面新建三個資料夾
在Main檔案家裡新建
其中train.txt裡寫入每張圖片的名字 比如00001.jpg這張圖片就寫為00001,如下圖
3 將下面程式碼貼上在一個.py檔案裡,執行即可得到每一個所對應的txt檔案
# -*- coding: utf-8 -*-
"""
Created on Tue Oct 30 10:43:13 2018
@author: Administrator
"""
import xml.etree.ElementTree as ET
import pickle
import os
from os import listdir, getcwd
from os.path import join
#sets=[('2012', 'train'), ('2012', 'val'), ('2007', 'train'), ('2007', 'val'), ('2007', 'test')]
#classes = ["aeroplane", "bicycle", "bird", "boat", "bottle", "bus", "car", "cat", "chair", "cow", "diningtable", "dog", "horse", "motorbike", "person", "pottedplant", "sheep", "sofa", "train", "tvmonitor"]
sets=[('2018', 'train')]
classes = [ "peri","wolf"]
def convert(size, box):
dw = 1./size[0]
dh = 1./size[1]
x = (box[0] + box[1])/2.0
y = (box[2] + box[3])/2.0
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)) #(如果使用的不是VOC而是自設定資料集名字,則這裡需要修改)
out_file = open('VOCdevkit/VOC%s/labels/%s.txt'%(year, image_id), 'w') #(同上)
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))
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('%s_%s.txt'%(year, image_set), 'w')
for image_id in image_ids:
list_file.write('%s/VOCdevkit/VOC%s/JPEGImages/%s.jpg\n'%(wd, year, image_id))
convert_annotation(year, image_id)
list_file.close()
這裡包含了類別和對應歸一化後的位置(i guess,如有錯請指正)。同時在darknet.exe所在當前目錄下應該也生成了2018_train.txt這個檔案,裡面包含了所有訓練樣本的絕對路徑。
參考部落格:https://yq.aliyun.com/wenji/273314
參考部落格:https://www.cnblogs.com/antflow/p/7350274.html(yolo1(應該也可以)可能需要修改原始碼.C檔案(沒嘗試),yolo2只需要修改配置檔案)