Opencv 分数在openbr FaceRecognition中的实际含义是什么

命令：

br -algorithm FaceRecognition -compare 2017-01-26-100725.jpg 2017-01-26-105640.jpg

br -algorithm FaceRecognition -compare 2017-01-26-100725.jpg 2017-01-26-100725.jpg

输出：

Set algorithm to FaceRecognition
Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
Comparing 2017-01-26-100725.jpg and 2017-01-26-105640.jpg
Enrolling 2017-01-26-100725.jpg to 2017-01-26-100725IaPSB4.mem
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
4.14855

Set algorithm to FaceRecognition
Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
Comparing 2017-01-26-100725.jpg and 2017-01-26-100725.jpg
Enrolling 2017-01-26-100725.jpg to 2017-01-26-100725IaPSB4.mem
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
23.9268

命令：

br -algorithm FaceRecognition -compare 2017-01-26-100725.jpg 2017-01-26-105640.jpg

br -algorithm FaceRecognition -compare 2017-01-26-100725.jpg 2017-01-26-100725.jpg

输出：

Set algorithm to FaceRecognition
Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
Comparing 2017-01-26-100725.jpg and 2017-01-26-105640.jpg
Enrolling 2017-01-26-100725.jpg to 2017-01-26-100725IaPSB4.mem
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
4.14855

Set algorithm to FaceRecognition
Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
Comparing 2017-01-26-100725.jpg and 2017-01-26-100725.jpg
Enrolling 2017-01-26-100725.jpg to 2017-01-26-100725IaPSB4.mem
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
23.9268

请注意，最后一个命令是比较两个相同的图像。最后一个数字是什么意思？我猜是比分？如果是，那么相对于什么

在openbr站点上的所有文档中，都没有提到FaceRecognition命令给出的输出。

可能重复的