Generate two files of train and val

voc_label.py

import xml.etree.ElementTree as ET
import pickle
import os
from os import listdir, getcwd
from os.path import join

# 這裡改[類別名稱]，drug的項目有12個類別
classes = ["Binin-U", "Concor5mg", "Depyretin", "Diphenidol", "ligilin", "Lopedin", "Madopar125mg", "Madopar250mg", "Medicon-A", "Requip025", "spironolactone", "Treceton"]


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(image_id):
    # 這裡改.xml資料夾的路徑
    in_file = open('/home/user/darknet/drug_detect/Annotations/%s.xml' % (image_id))
    # 這裡改產生每張圖片對應.txt的路徑
    out_file = open('/home/user/darknet/drug_detect/labels/%s.txt' % (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'):
        cls = obj.find('name').text
        if cls not in classes :
            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')


# 這裡改train.txt文件的路徑
image_ids_train = open('/home/user/darknet/drug_detect/train.txt').read().strip().split()
# 這裡改val.txt文件的路徑
image_ids_val = open('/home/user/darknet/drug_detect/val.txt').read().strip().split()

list_file_train = open('drug_train.txt', 'w')
list_file_val = open('drug_val.txt', 'w')

for image_id in image_ids_train:
    # 這裡改樣本圖片資料夾的路徑
    list_file_train.write('/home/user/darknet/drug_detect/JPEGImages/%s.jpg\n' % (image_id))
    convert_annotation(image_id)

list_file_train.close()

for image_id in image_ids_val:
    # 這裡改樣本圖片資料夾的路徑
    list_file_val.write('/home/user/darknet/drug_detect/JPEGImages/%s.jpg\n' % (image_id))
    convert_annotation(image_id)

list_file_val.close()