git clone https://github.com/ultralytics/yolov3.gitconda create -n yolov3 python=3.7pip install -r requirements.txt环境要求：
其中只需要注意pytorch的安装：
到https://pytorch.org/中根据操作系统，python版本，cuda版本等选择命令即可。
关于深度学习环境搭建请参看：https://www.cnblogs.com/pprp/p/9463974.html
anaconda常用用法：https://www.cnblogs.com/pprp/p/9463124.html
在Windows下使用：wget https://github.com/pprp/DL/blob/master/LabelIMG.zipCtrl + u 加载目录中的所有图像，鼠标点击Open dir同功能
Ctrl + r 更改默认注释目标目录(xml文件保存的地址)
Ctrl + s 保存
Ctrl + d 复制当前标签和矩形框
space 将当前图像标记为已验证
w 创建一个矩形框
d 下一张图片
a 上一张图片
del 删除选定的矩形框
Ctrl++ 放大
Ctrl-- 缩小
↑→↓← 键盘箭头移动选定的矩形框-data
- VOCdevkit2007
- VOC2007
- Annotations (标签XML文件，用对应的图片处理工具人工生成的)
- ImageSets (生成的方法是用sh或者MATLAB语言生成)
- Main
- test.txt
- train.txt
- trainval.txt
- val.txt
- JPEGImages(原始文件)
- labels (xml文件对应的txt文件)通过以上软件主要构造好JPEGImages和Annotations文件夹中内容,Main文件夹中的txt文件可以通过python脚本生成：
import os
import random
trainval_percent = 0.8
train_percent = 0.8
xmlfilepath = 'Annotations'
txtsavepath = 'ImageSets\Main'
total_xml = os.listdir(xmlfilepath)
num=len(total_xml)
list=range(num)
tv=int(num*trainval_percent)
tr=int(tv*train_percent)
trainval= random.sample(list,tv)
train=random.sample(trainval,tr)
ftrainval = open('ImageSets/Main/trainval.txt', 'w')
ftest = open('ImageSets/Main/test.txt', 'w')
ftrain = open('ImageSets/Main/train.txt', 'w')
fval = open('ImageSets/Main/val.txt', 'w')
for i in list:
name=total_xml[i][:-4]+'\n'
if i in trainval:
ftrainval.write(name)
if i in train:
ftrain.write(name)
else:
fval.write(name)
else:
ftest.write(name)
ftrainval.close()
ftrain.close()
fval.close()
ftest.close()生成labels文件，voc_label.py文件具体内容如下：
# -*- coding: utf-8 -*-
"""
Created on Tue Oct 2 11:42:13 2018
将本文件放到VOC2007目录下，然后就可以直接运行
需要修改的地方：
1. sets中替换为自己的数据集
2. classes中替换为自己的类别
3. 将本文件放到VOC2007目录下
4. 直接开始运行
"""
import xml.etree.ElementTree as ET
import pickle
import os
from os import listdir, getcwd
from os.path import join
sets=[('2007', 'train'), ('2007', 'val'), ('2007', 'test')] #替换为自己的数据集
classes = ["head", "eye", "nose"] #修改为自己的类别
#classes = ["eye", "nose"]
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('VOC%s/Annotations/%s.xml'%(year, image_id)) #将数据集放于当前目录下
out_file = open('VOC%s/labels/%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)==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('VOC%s/labels/'%(year)):
os.makedirs('VOC%s/labels/'%(year))
image_ids = open('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('VOC%s/JPEGImages/%s.jpg\n'%(year, image_id))
convert_annotation(year, image_id)
list_file.close()
#os.system("cat 2007_train.txt 2007_val.txt > train.txt") #修改为自己的数据集用作训练到底为止，VOC格式数据集构造完毕，但是还需要继续构造符合darknet格式的数据集。
（运行bash yolov3/data/get_coco_dataset.sh,仿照格式将数据放到其中）
但是这个库还需要其他模型：
其中保存的是你的所有的类别，每行一个类别，如data/coco.names：
head
eye
noseclasses = 3 # 改成你的数据集的类别个数
train = ./data/2007_train.txt # 通过voc_label.py文件生成的txt文件
valid = ./data/2007_test.txt # 通过voc_label.py文件生成的txt文件
names = data/coco.names # 记录类别
backup = backup/ # 记录checkpoint存放位置
eval = coco # 选择map计算方式打开cfg文件夹下的yolov3.cfg文件，大体而言，cfg文件记录的是整个网络的结构，是核心部分，具体内容讲解请见：https://pprp.github.io/2018/09/20/tricks.html
只需要更改每个[yolo]层前边卷积层的filter个数即可：
每一个[region/yolo]层前的最后一个卷积层中的 filters=num(yolo层个数)*(classes+5) ,5的意义是5个坐标，论文中的tx,ty,tw,th,po
举个例子：我有三个类，n = 3, 那么filter = 3 * (3+5) = 21
[convolutional]
size=1
stride=1
pad=1
filters=255 # 改为 21
activation=linear
[yolo]
mask = 6,7,8
anchors = 10,13, 16,30, 33,23, 30,61, 62,45, 59,119, 116,90, 156,198, 373,326
classes=80 # 改为 3
num=9
jitter=.3
ignore_thresh = .7
truth_thresh = 1
random=1预训练模型：
*.weights format: https://pjreddie.com/media/files/yolov3.weights*.pt format: https://drive.google.com/drive/folders/1uxgUBemJVw9wZsdpboYbzUN4bcRhsuAI开始训练：
python train.py --data data/coco.data --cfg cfg/yolov3.cfg如果日志正常输出那证明可以运行了
如果中断了，可以恢复训练
python train.py --data data/coco.data --cfg cfg/yolov3.cfg --resume将待测试图片放到data/samples中，然后运行
python detect.py --weights weights/best.ptpython test.py --weights weights/latest.pt如果使用cocoAPI使用以下命令：
git clone https://github.com/cocodataset/cocoapi && cd cocoapi/PythonAPI && make && cd ../.. && cp -r cocoapi/PythonAPI/pycocotools yolov3
cd yolov3
python3 test.py --save-json --img-size 416
Namespace(batch_size=32, cfg='cfg/yolov3-spp.cfg', conf_thres=0.001, data_cfg='data/coco.data', img_size=416, iou_thres=0.5, nms_thres=0.5, save_json=True, weights='weights/yolov3-spp.weights')
Using CUDA device0 _CudaDeviceProperties(name='Tesla V100-SXM2-16GB', total_memory=16130MB)
Class Images Targets P R mAP F1
Calculating mAP: 100%|█████████████████████████████████████████| 157/157 [05:59<00:00, 1.71s/it]
all 5e+03 3.58e+04 0.109 0.773 0.57 0.186
Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.335
Average Precision (AP) @[ IoU=0.50 | area= all | maxDets=100 ] = 0.565
Average Precision (AP) @[ IoU=0.75 | area= all | maxDets=100 ] = 0.349
Average Precision (AP) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = 0.151
Average Precision (AP) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.360
Average Precision (AP) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.493
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 1 ] = 0.280
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 10 ] = 0.432
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.458
Average Recall (AR) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = 0.255
Average Recall (AR) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.494
Average Recall (AR) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.620
python3 test.py --save-json --img-size 608 --batch-size 16
Namespace(batch_size=16, cfg='cfg/yolov3-spp.cfg', conf_thres=0.001, data_cfg='data/coco.data', img_size=608, iou_thres=0.5, nms_thres=0.5, save_json=True, weights='weights/yolov3-spp.weights')
Using CUDA device0 _CudaDeviceProperties(name='Tesla V100-SXM2-16GB', total_memory=16130MB)
Class Images Targets P R mAP F1
Computing mAP: 100%|█████████████████████████████████████████| 313/313 [06:11<00:00, 1.01it/s]
all 5e+03 3.58e+04 0.12 0.81 0.611 0.203
Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.366
Average Precision (AP) @[ IoU=0.50 | area= all | maxDets=100 ] = 0.607
Average Precision (AP) @[ IoU=0.75 | area= all | maxDets=100 ] = 0.386
Average Precision (AP) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = 0.207
Average Precision (AP) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.391
Average Precision (AP) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.485
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 1 ] = 0.296
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 10 ] = 0.464
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.494
Average Recall (AR) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = 0.331
Average Recall (AR) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.517
Average Recall (AR) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.618可以使用python -c from utils import utils;utils.plot_results()
创建drawLog.py
def plot_results():
# Plot YOLO training results file 'results.txt'
import glob
import numpy as np
import matplotlib.pyplot as plt
#import os; os.system('rm -rf results.txt && wget https://storage.googleapis.com/ultralytics/results_v1_0.txt')
plt.figure(figsize=(16, 8))
s = ['X', 'Y', 'Width', 'Height', 'Objectness', 'Classification', 'Total Loss', 'Precision', 'Recall', 'mAP']
files = sorted(glob.glob('results.txt'))
for f in files:
results = np.loadtxt(f, usecols=[2, 3, 4, 5, 6, 7, 8, 17, 18, 16]).T # column 16 is mAP
n = results.shape[1]
for i in range(10):
plt.subplot(2, 5, i + 1)
plt.plot(range(1, n), results[i, 1:], marker='.', label=f)
plt.title(s[i])
if i == 0:
plt.legend()
plt.savefig('./plot.png')
if __name__ == "__main__":
plot_results()
详细cfg文件讲解：https://pprp.github.io/2018/09/20/tricks.html
参考资料以及网络更改经验：https://pprp.github.io/2018/06/20/yolo.html
原文：https://www.cnblogs.com/pprp/p/10863496.html