1、获取安装
需要下载标签软件labelImg，打开cmd终端输入"pip install labelImg".
2、打开软件
等待下载安装完成后，在cmd中输入" labelImg"进行软件打开。
3、打标签
（1）打开图片
（2）选择标签格式（pascal2007）即可开始。
图中是对人脸进行标记，中间需要输入标签种类people。
图中已经将所有的人脸标记出来，保存后生成一个xml坐标文件。
打开xml文件，我们可以看到：
<annotation>
<folder/>
<filename>海贼王.jpg</filename>
<path>D:\海贼王.jpg</path>
<source>
<database>Unknown</database>
</source>
<size>
<width>640</width>
<height>480</height>
<depth>3</depth>
</size>
<segmented>0</segmented>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>250</xmin>
<ymin>208</ymin>
<xmax>364</xmax>
<ymax>322</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>447</xmin>
<ymin>229</ymin>
<xmax>539</xmax>
<ymax>321</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>375</xmin>
<ymin>88</ymin>
<xmax>479</xmax>
<ymax>192</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>166</xmin>
<ymin>275</ymin>
<xmax>247</xmax>
<ymax>356</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>102</xmin>
<ymin>243</ymin>
<xmax>178</xmax>
<ymax>319</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>35</xmin>
<ymin>272</ymin>
<xmax>114</xmax>
<ymax>351</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>14</xmin>
<ymin>131</ymin>
<xmax>107</xmax>
<ymax>224</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>103</xmin>
<ymin>136</ymin>
<xmax>212</xmax>
<ymax>245</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>176</xmin>
<ymin>124</ymin>
<xmax>284</xmax>
<ymax>232</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>291</xmin>
<ymin>96</ymin>
<xmax>405</xmax>
<ymax>210</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>492</xmin>
<ymin>114</ymin>
<xmax>602</xmax>
<ymax>224</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>523</xmin>
<ymin>59</ymin>
<xmax>609</xmax>
<ymax>145</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>422</xmin>
<ymin>17</ymin>
<xmax>535</xmax>
<ymax>130</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>285</xmin>
<ymin>7</ymin>
<xmax>402</xmax>
<ymax>124</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>167</xmin>
<ymin>16</ymin>
<xmax>284</xmax>
<ymax>133</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>101</xmin>
<ymin>53</ymin>
<xmax>193</xmax>
<ymax>145</ymax>
</bndbox>
</object>
<object>
<name>people</name>
<pose>Unspecified</pose>
<truncated>0</truncated>
<difficult>0</difficult>
<bndbox>
<xmin>27</xmin>
<ymin>50</ymin>
<xmax>111</xmax>
<ymax>134</ymax>
</bndbox>
</object>
</annotation>
就这样标签标记完毕。
本期学习到此结束，欢迎大家关注交流。
