我必须从 JSON 字符串中提取车牌数字及其关联的置信度,如下所示:
{
"response": {
"container": {
"id": "0df307bc-06b2-45cf-b7ff-ce07fd04e04d",
"timestamp": "2018-Jul-10 17:34:27.448632"
},
"id": "00000002-0000-0000-0000-000000000015"
},
"frames": {
"frame": {
"id": "5583",
"timestamp": "2016-Nov-30 13:05:27",
"lps": {
"lp": {
"licenseplate": "15451BBL",
"text": "15451BBL",
"wtext": "15451BBL",
"confidence": "20",
"bkcolor": "16777215",
"color": "16777215",
"type": "0",
"ntip": "11",
"cct_country_short": "",
"cct_state_short": "",
"tips": {
"tip": {
"poly": {
"p": { "x": "1094", "y": "643" },
"p": { "x": "1099", "y": "643" },
"p": { "x": "1099", "y": "667" },
"p": { "x": "1094", "y": "667" }
},
"bkcolor": "16777215",
"color": "0",
"code": "49",
"code_ascii": "1",
"confidence": "97"
},
"tip": {
"poly": {
"p": { "x": "1103", "y": "642" },
"p": { "x": "1113", "y": "642" },
"p": { "x": "1112", "y": "667" },
"p": { "x": "1102", "y": "667" }
},
"bkcolor": "16777215",
"color": "0",
"code": "53",
"code_ascii": "5",
"confidence": "89"
},
"tip": {
"poly": {
"p": { "x": "1112", "y": "640" },
"p": { "x": "1122", "y": "640" },
"p": { "x": "1122", "y": "666" },
"p": { "x": "1112", "y": "666" }
},
"bkcolor": "16777215",
"color": "0",
"code": "52",
"code_ascii": "4",
"confidence": "97"
},
"tip": {
"poly": {
"p": { "x": "1123", "y": "640" },
"p": { "x": "1132", "y": "640" },
"p": { "x": "1131", "y": "665" },
"p": { "x": "1123", "y": "665" }
},
"bkcolor": "16777215",
"color": "0",
"code": "53",
"code_ascii": "5",
"confidence": "97"
},
"tip": {
"poly": {
"p": { "x": "1134", "y": "640" },
"p": { "x": "1139", "y": "640" },
"p": { "x": "1139", "y": "664" },
"p": { "x": "1133", "y": "664" }
},
"bkcolor": "16777215",
"color": "0",
"code": "49",
"code_ascii": "1",
"confidence": "77"
},
"tip": {
"poly": {
"p": { "x": "1154", "y": "639" },
"p": { "x": "1163", "y": "639" },
"p": { "x": "1163", "y": "663" },
"p": { "x": "1153", "y": "663" }
},
"bkcolor": "16777215",
"color": "0",
"code": "66",
"code_ascii": "B",
"confidence": "97"
},
"tip": {
"poly": {
"p": { "x": "1164", "y": "638" },
"p": { "x": "1173", "y": "638" },
"p": { "x": "1173", "y": "663" },
"p": { "x": "1163", "y": "663" }
},
"bkcolor": "16777215",
"color": "0",
"code": "66",
"code_ascii": "B",
"confidence": "94"
},
"tip": {
"poly": {
"p": { "x": "1191", "y": "637" },
"p": { "x": "1206", "y": "636" },
"p": { "x": "1205", "y": "660" },
"p": { "x": "1190", "y": "661" }
},
"bkcolor": "16777215",
"color": "0",
"code": "76",
"code_ascii": "L",
"confidence": "34"
},
"tip": {
"poly": {
"p": { "x": "1103", "y": "655" },
"p": { "x": "1111", "y": "655" },
"p": { "x": "1111", "y": "667" },
"p": { "x": "1103", "y": "667" }
},
"bkcolor": "16777215",
"color": "0",
"code": "74",
"code_ascii": "J",
"confidence": "57"
},
"tip": {
"poly": {
"p": { "x": "1103", "y": "655" },
"p": { "x": "1111", "y": "655" },
"p": { "x": "1111", "y": "667" },
"p": { "x": "1103", "y": "667" }
},
"bkcolor": "16777215",
"color": "0",
"code": "74",
"code_ascii": "J",
"confidence": "57"
},
"tip": {
"poly": {
"p": { "x": "1176", "y": "638" },
"p": { "x": "1185", "y": "637" },
"p": { "x": "1184", "y": "661" },
"p": { "x": "1175", "y": "662" }
},
"bkcolor": "16777215",
"color": "0",
"code": "52",
"code_ascii": "4",
"confidence": "7"
}
},
"ncharacter": "8",
"characters": {
"characater": {
"poly": {
"p": { "x": "1094", "y": "643" },
"p": { "x": "1099", "y": "643" },
"p": { "x": "1099", "y": "667" },
"p": { "x": "1094", "y": "667" }
},
"bkcolor": "16777215",
"color": "0",
"code": "49",
"code_ascii": "1",
"confidence": "97"
},
"characater": {
"poly": {
"p": { "x": "1103", "y": "642" },
"p": { "x": "1113", "y": "642" },
"p": { "x": "1112", "y": "667" },
"p": { "x": "1102", "y": "667" }
},
"bkcolor": "16777215",
"color": "0",
"code": "53",
"code_ascii": "5",
"confidence": "89"
},
"characater": {
"poly": {
"p": { "x": "1112", "y": "640" },
"p": { "x": "1122", "y": "640" },
"p": { "x": "1122", "y": "666" },
"p": { "x": "1112", "y": "666" }
},
"bkcolor": "16777215",
"color": "0",
"code": "52",
"code_ascii": "4",
"confidence": "97"
},
"characater": {
"poly": {
"p": { "x": "1123", "y": "640" },
"p": { "x": "1132", "y": "640" },
"p": { "x": "1131", "y": "665" },
"p": { "x": "1123", "y": "665" }
},
"bkcolor": "16777215",
"color": "0",
"code": "53",
"code_ascii": "5",
"confidence": "97"
},
"characater": {
"poly": {
"p": { "x": "1134", "y": "640" },
"p": { "x": "1139", "y": "640" },
"p": { "x": "1139", "y": "664" },
"p": { "x": "1133", "y": "664" }
},
"bkcolor": "16777215",
"color": "0",
"code": "49",
"code_ascii": "1",
"confidence": "77"
},
"characater": {
"poly": {
"p": { "x": "1154", "y": "639" },
"p": { "x": "1163", "y": "639" },
"p": { "x": "1163", "y": "663" },
"p": { "x": "1153", "y": "663" }
},
"bkcolor": "16777215",
"color": "0",
"code": "66",
"code_ascii": "B",
"confidence": "97"
},
"characater": {
"poly": {
"p": { "x": "1164", "y": "638" },
"p": { "x": "1173", "y": "638" },
"p": { "x": "1173", "y": "663" },
"p": { "x": "1163", "y": "663" }
},
"bkcolor": "16777215",
"color": "0",
"code": "66",
"code_ascii": "B",
"confidence": "94"
},
"characater": {
"poly": {
"p": { "x": "1191", "y": "637" },
"p": { "x": "1206", "y": "636" },
"p": { "x": "1205", "y": "660" },
"p": { "x": "1190", "y": "661" }
},
"bkcolor": "16777215",
"color": "0",
"code": "76",
"code_ascii": "L",
"confidence": "34"
}
},
"det_time_us": "1104009",
"poly": {
"p": { "x": "1088", "y": "642" },
"p": { "x": "1210", "y": "634" },
"p": { "x": "1210", "y": "661" },
"p": { "x": "1087", "y": "669" }
}
}
},
"det_time_us": "1710270"
}
}
}
我有类似的东西:
$ jq -r '.frames.frame.lps.lp|.characters.characater.code_ascii,.characters.characater.confidence' test.json
但它只返回一个字母并且它是conf。分数....
问题
- 我怎样才能取回所有字母和相关分数?
输出
我期望输出如下:
1 97, 5 89, 4 97,5 97, 1 77,B 97, B 94, L 34, J, 57,J 57, 4 7, 1 97, 5 89, 4 97, 5 97, 1 77, B 97, B 94, L 34
笔记:格式可以不同,这只是表明我想要提取的数据。
复制粘贴
输入文件“test.json”
{"response":{"container":{"id":"41d6efcb-24d6-490d-8880-762255519b5f","timestamp":"2018-Jul-11 19:51:06.461665"},"id":"00000002-0000-0000-0000-000000000015"},"frames":{"frame":{"id":"5583","timestamp":"2016-Nov-30 13:05:27","lps":{"lp":{"licenseplate":"15451BBL","text":"15451BBL","wtext":"15451BBL","confidence":"20","bkcolor":"16777215","color":"16777215","type":"0","ntip":"11","cct_country_short":"","cct_state_short":"","tips":{"tip":{"poly":{"p":{"x":"1094","y":"643"},"p":{"x":"1099","y":"643"},"p":{"x":"1099","y":"667"},"p":{"x":"1094","y":"667"}},"bkcolor":"16777215","color":"0","code":"49","code_ascii":"1","confidence":"97"},"tip":{"poly":{"p":{"x":"1103","y":"642"},"p":{"x":"1113","y":"642"},"p":{"x":"1112","y":"667"},"p":{"x":"1102","y":"667"}},"bkcolor":"16777215","color":"0","code":"53","code_ascii":"5","confidence":"89"},"tip":{"poly":{"p":{"x":"1112","y":"640"},"p":{"x":"1122","y":"640"},"p":{"x":"1122","y":"666"},"p":{"x":"1112","y":"666"}},"bkcolor":"16777215","color":"0","code":"52","code_ascii":"4","confidence":"97"},"tip":{"poly":{"p":{"x":"1123","y":"640"},"p":{"x":"1132","y":"640"},"p":{"x":"1131","y":"665"},"p":{"x":"1123","y":"665"}},"bkcolor":"16777215","color":"0","code":"53","code_ascii":"5","confidence":"97"},"tip":{"poly":{"p":{"x":"1134","y":"640"},"p":{"x":"1139","y":"640"},"p":{"x":"1139","y":"664"},"p":{"x":"1133","y":"664"}},"bkcolor":"16777215","color":"0","code":"49","code_ascii":"1","confidence":"77"},"tip":{"poly":{"p":{"x":"1154","y":"639"},"p":{"x":"1163","y":"639"},"p":{"x":"1163","y":"663"},"p":{"x":"1153","y":"663"}},"bkcolor":"16777215","color":"0","code":"66","code_ascii":"B","confidence":"97"},"tip":{"poly":{"p":{"x":"1164","y":"638"},"p":{"x":"1173","y":"638"},"p":{"x":"1173","y":"663"},"p":{"x":"1163","y":"663"}},"bkcolor":"16777215","color":"0","code":"66","code_ascii":"B","confidence":"94"},"tip":{"poly":{"p":{"x":"1191","y":"637"},"p":{"x":"1206","y":"636"},"p":{"x":"1205","y":"660"},"p":{"x":"1190","y":"661"}},"bkcolor":"16777215","color":"0","code":"76","code_ascii":"L","confidence":"34"},"tip":{"poly":{"p":{"x":"1103","y":"655"},"p":{"x":"1111","y":"655"},"p":{"x":"1111","y":"667"},"p":{"x":"1103","y":"667"}},"bkcolor":"16777215","color":"0","code":"74","code_ascii":"J","confidence":"57"},"tip":{"poly":{"p":{"x":"1103","y":"655"},"p":{"x":"1111","y":"655"},"p":{"x":"1111","y":"667"},"p":{"x":"1103","y":"667"}},"bkcolor":"16777215","color":"0","code":"74","code_ascii":"J","confidence":"57"},"tip":{"poly":{"p":{"x":"1176","y":"638"},"p":{"x":"1185","y":"637"},"p":{"x":"1184","y":"661"},"p":{"x":"1175","y":"662"}},"bkcolor":"16777215","color":"0","code":"52","code_ascii":"4","confidence":"7"}},"ncharacter":"8","characters":{"characater":{"poly":{"p":{"x":"1094","y":"643"},"p":{"x":"1099","y":"643"},"p":{"x":"1099","y":"667"},"p":{"x":"1094","y":"667"}},"bkcolor":"16777215","color":"0","code":"49","code_ascii":"1","confidence":"97"},"characater":{"poly":{"p":{"x":"1103","y":"642"},"p":{"x":"1113","y":"642"},"p":{"x":"1112","y":"667"},"p":{"x":"1102","y":"667"}},"bkcolor":"16777215","color":"0","code":"53","code_ascii":"5","confidence":"89"},"characater":{"poly":{"p":{"x":"1112","y":"640"},"p":{"x":"1122","y":"640"},"p":{"x":"1122","y":"666"},"p":{"x":"1112","y":"666"}},"bkcolor":"16777215","color":"0","code":"52","code_ascii":"4","confidence":"97"},"characater":{"poly":{"p":{"x":"1123","y":"640"},"p":{"x":"1132","y":"640"},"p":{"x":"1131","y":"665"},"p":{"x":"1123","y":"665"}},"bkcolor":"16777215","color":"0","code":"53","code_ascii":"5","confidence":"97"},"characater":{"poly":{"p":{"x":"1134","y":"640"},"p":{"x":"1139","y":"640"},"p":{"x":"1139","y":"664"},"p":{"x":"1133","y":"664"}},"bkcolor":"16777215","color":"0","code":"49","code_ascii":"1","confidence":"77"},"characater":{"poly":{"p":{"x":"1154","y":"639"},"p":{"x":"1163","y":"639"},"p":{"x":"1163","y":"663"},"p":{"x":"1153","y":"663"}},"bkcolor":"16777215","color":"0","code":"66","code_ascii":"B","confidence":"97"},"characater":{"poly":{"p":{"x":"1164","y":"638"},"p":{"x":"1173","y":"638"},"p":{"x":"1173","y":"663"},"p":{"x":"1163","y":"663"}},"bkcolor":"16777215","color":"0","code":"66","code_ascii":"B","confidence":"94"},"characater":{"poly":{"p":{"x":"1191","y":"637"},"p":{"x":"1206","y":"636"},"p":{"x":"1205","y":"660"},"p":{"x":"1190","y":"661"}},"bkcolor":"16777215","color":"0","code":"76","code_ascii":"L","confidence":"34"}},"det_time_us":"1072592","poly":{"p":{"x":"1088","y":"642"},"p":{"x":"1210","y":"634"},"p":{"x":"1210","y":"661"},"p":{"x":"1087","y":"669"}}}},"det_time_us":"1720812"}}}
关联
输入文件:https://drive.google.com/file/d/18wCzjMBpw7SIeVFByAGPQiqCBjg_0te3/view?usp=sharing
答案1
这是一个新的、改进的答案。旧的答案可以在最后的分隔符之后找到。
数据的问题在于它包含一个.frame.frames.lps.lp.characters
带有非唯一键 ( characater
) 的对象 。每次为已存在的键指定值时,旧值都会丢失。
jq
我们可以通过使用实用程序的“流”输入( )来解决这个问题--stream
:
$ jq -r -n --stream 'fromstream(1|truncate_stream(5|truncate_stream(inputs)|select(.[0][0] == "characater"))) | [.code_ascii, .confidence] | @tsv' test.json
1 97
5 89
4 97
5 97
1 77
B 97
B 94
L 34
首先在深度 5(路径 的长度.frame.frames.lps.lp.characters
)处截断输入流,然后我们提取以有问题的键开头的任何子路径characater
。这就是内在truncate_stream()
和外在select()
正在做的事情。然后,每个这样的子路径的顶层被截断,剩下的被重新构成对象流。这就是外部与包装它的truncate_stream()
调用一起所做的事情fromstream()
。
在处理过程中,修改后的文档如下所示(给出问题中的示例):
{"poly":{"p":{"x":"1094","y":"667"}},"bkcolor":"16777215","color":"0","code":"49","code_ascii":"1","confidence":"97"}
{"poly":{"p":{"x":"1102","y":"667"}},"bkcolor":"16777215","color":"0","code":"53","code_ascii":"5","confidence":"89"}
{"poly":{"p":{"x":"1112","y":"666"}},"bkcolor":"16777215","color":"0","code":"52","code_ascii":"4","confidence":"97"}
{"poly":{"p":{"x":"1123","y":"665"}},"bkcolor":"16777215","color":"0","code":"53","code_ascii":"5","confidence":"97"}
{"poly":{"p":{"x":"1133","y":"664"}},"bkcolor":"16777215","color":"0","code":"49","code_ascii":"1","confidence":"77"}
{"poly":{"p":{"x":"1153","y":"663"}},"bkcolor":"16777215","color":"0","code":"66","code_ascii":"B","confidence":"97"}
{"poly":{"p":{"x":"1163","y":"663"}},"bkcolor":"16777215","color":"0","code":"66","code_ascii":"B","confidence":"94"}
{"poly":{"p":{"x":"1190","y":"661"}},"bkcolor":"16777215","color":"0","code":"76","code_ascii":"L","confidence":"34"}
对于来自的每个对象fromstream
,数据被提取到一个格式化为输出的数组中@tsv
,从而为我们提供上面的制表符分隔的输出。
2018年的旧答案:
由于您的characters
数组不是正确的 JSON 数组(它是每个键具有相同名称的哈希),因此只有它的最后一个值可用。
我们可以通过预处理数据来为现在调用的每个对象创建唯一的键来解决这个问题characater
:
awk '/"characater"/ { sub("\"characater\"", "\"char" ++n "\"", $0) } 1' file.json
这会将每个替换characater
为等char1
。char2
我们现在可以使用例如访问其中的所有值
jq -r '.frames.frame.lps.lp|.characters[]|[.code_ascii,.confidence]|@tsv'
完整的管道:
awk '/"characater"/ { sub("\"characater\"", "\"char" ++n "\"", $0) } 1' file.json |
jq -r '.frames.frame.lps.lp|.characters[]|[.code_ascii,.confidence]|@tsv'
结果(给出问题中的数据):
1 97
5 89
4 97
5 97
1 77
B 97
B 94
L 34
如果您控制 JSON 文档的生成,则应考虑将对象转换characters
为适当的数组。
答案2
鉴于您的输入不是有效的 JSON,您可能必须采用sed
, awk
,grep
类型的解决方案。为此,以下可以处理已“缩小”为单个字符串的输入:
$ grep -oP '"code_ascii":"\w+","confidence":"\w+"' <FILE> | grep -oP '(?<=:)"\w+"' | paste - -
例子
$ grep -oP '"code_ascii":"\w+","confidence":"\w+"' b.json | grep -oP '(?<=:)"\w+"' | paste - -
"1", "97"
"5", "89"
"4", "97"
"5", "97"
"1", "77"
"B", "97"
"B", "94"
"L", "34"
"J", "57"
"J", "57"
"4", "7"
"1", "97"
"5", "89"
"4", "97"
"5", "97"
"1", "77"
"B", "97"
"B", "94"
"L", "34"
备择方案
笔记:它们适用于多行输入数据。
sed+粘贴$ sed -n '/code_ascii/,/confidence/p' a.json | sed 's/.*: [^"]*//' | paste - -
sed、awk、粘贴
$ sed -n '/code_ascii/,/confidence/p' a.json | awk -F': ' '{print $2}' | paste -d" " - -
sed、grep、粘贴
$ sed -n '/code_ascii/,/confidence/p' a.json | grep -oP '(?<=: ).*$' | paste - -
grep+粘贴
$ grep -oP '"code_ascii":"\w+","confidence":"\w+"' b.json | grep -oP '(?<=:)"\w+"' | paste - -
答案3
grep + sed + tr :
grep -e code_ascii -e confidence <file> | sed 's/.*: "\(.*\)"/\1/;' | tr "\n" ' '
返回 :
20, 1, 97 5, 89 4, 97 5, 97 1, 77 B, 97 B, 94 L, 34 J, 57 J, 57 4, 7 1, 97 5, 89 4, 97 5, 97 1, 77 B, 97 B, 94 L, 34
此命令仅返回 code_ascii +confidence 对:
grep -e code_ascii -e confidence <file> | sed -n 's/.*code_ascii": "\(.*\)"/\1/;T;h;n;s/.*"confidence": "\(.*\)"/\1/;T;H;g;p' | tr "\n" " "
返回 :
1, 97 5, 89 4, 97 5, 97 1, 77 B, 97 B, 94 L, 34 J, 57 J, 57 4, 7 1, 97 5, 89 4, 97 5, 97 1, 77 B, 97 B, 94 L, 34
现在,请参阅上面 Kusalananda 的帖子。只需 sed + tr :
sed -i 's/},/},\n/g' <tempfile>
sed -n 's/characater//;T;:z;n;s/.*code_ascii": "\(.*\)"/\1/;Tz;:zz;h;n;s/.*"confidence": "\(.*\)"/\1/;Tzz;H;s/$//;Tz;g;p' <tempfile> | tr "\n" " "
返回 :
1, 97 5, 89 4, 97 5, 97 1, 77 B, 97 B, 94 L, 34