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API Documentation for Thai LPR
- On Cloud - one request at a time.
- On Premise - unlimited requests.
- API sends external requests to the LPR system.
Example Input
post
https
://api.iapp.co.th/license-plate-recognition/file
Post Image
This endpoint allows you to send a picture that consists of minimum one vehicle that OCR must be performed. The Response will be the licence plate number of the vehicle(s) on the picture.
Parameter | Type | Description | Required |
|---|---|---|---|
apikey | string | Your API key to call this API | Required |
file | string | Picture consists of a vehicle | Required |
Parameters | Explanation |
|---|---|
conf | Confidence score of the license plate recognition in percentage. |
infer_time(s) | Time taken for inference in seconds. |
is_missing_plate | Indicates if there is a license plate missing in the image. Possible values: "yes" or "no". |
is_vehicle | Indicates if a vehicle is present in the image. Possible values: "yes" or "no". |
lp_number | License plate number recognized from the image. |
message | API response message. Possible values: "success" or "error". |
province | Province of the registered vehicle as identified by the license plate. |
status | HTTP status code of the API response. |
vehicle_body_type | |
vehicle_brand | |
vehicle_color | |
vehicle_model | |
vehicle_orientation | |
vehicle_year |
200: OK
404: Not Found
415: Unsupported Media Type
{
"conf": 94.56048584,
"infer_time(s)": 0.1770620346069336,
"is_missing_plate": "no",
"is_vehicle": "yes",
"lp_number": "6กผ40",
"message": "success",
"province": "th-10:Bangkok (กรุงเทพมหานคร)",
"status": 200,
"vehicle_body_type": "sedan-compact",
"vehicle_brand": "nissan",
"vehicle_color": "white",
"vehicle_model": "nissan_sentra",
"vehicle_orientation": "0",
"vehicle_year": "2015-2019"
}
{
"message": "Couldn't recognize the license plate"
"status": 404
}
{
"message": "File Extension is not allowed"
"status": 415
}
{
"message": "Attach one image at a time"
"status": 462
}
{
"message": "Method is not allowed",
"status": 415
}
Python
cURL
Java - Unirest
NodeJS - Request
Objective C
import requests
url = "https://api.iapp.co.th/license-plate-recognition/file"
path = "path/to/your/input/image"
file_name = "your input image name"
payload={}
files=[
('file_name',(path, 'rb'), 'image/jpeg'))
]
headers = {
'apikey': '----Your API Key----'
}
response = requests.request("POST", url, headers=headers, data=payload, files=files)
print(response.text)
curl --location --request POST 'https://api.iapp.co.th/license-plate-recognition/file' \
--header 'apikey: ----Your API Key----' \
--form 'your input image name=@"/path/to/your/input/image.jpg|jpeg|png"'
Unirest.setTimeouts(0, 0);
HttpResponse<String> response = Unirest.post("https://api.iapp.co.th/license-plate-recognition/file")
.header("apikey", "----Your API Key----")
.field("your input image name", new File("/path/to/your/input/image.jpg|jpeg|png"))
.asString();
var request = require('request');
var fs = require('fs');
var options = {
'method': 'POST',
'url': 'https://api.iapp.co.th/license-plate-recognition/file',
'headers': {
'apikey': '----Your API Key----'
},
formData: {
'file': {
'value': fs.createReadStream('/path/to/your/input/image.jpg|jpeg|png'),
'options': {
'filename': 'your input image name',
'contentType': null
}
}
}
#import <Foundation/Foundation.h>
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://api.iapp.co.th/license-plate-recognition/file"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
NSDictionary *headers = @{
@"apikey": @"----Your API Key----"
};
[request setAllHTTPHeaderFields:headers];
NSArray *parameters = @[
@{ @"name": @"your input image name", @"fileName": @"/path/to/your/input/image.jpg|jpeg|png" }
];
- On premise only.
- LPR system post's detection to a specific URL internally.
- External post requests to LPR system is not available in this version.
post
https
://{URL}/new-detection/license-plate-number/
Post Detection Results
This endpoint allows you to save your detection according to the number of seconds you choose the results to be saved on the GUI or configuration file.
Parameter | Type | Description | Rquired |
|---|---|---|---|
output_image | object | Vehicle frame printed with detected parameters. | Optional |
lp_number | string | License plate number. (Thai letters + Numbers) | Rquired |
vehicle_type | string | Bus, truck, car, pickup, van, SUV... | Optional |
vehicle_brand | string | Toyota, Nissan, Mazda, Mercedes-Benz... | Optional |
vehicle_color | string | RGB Format. (1 sec delay added) | Optional |
province | string | License plate registered province. | Required |
date_time | string | Vehicle detected date and time | Optional |
source | string | Camera port or a video file or live stream URL | Rquired |
nickname_source | string | Front-camera, Back-camera, My-camera, My-video... | Rquired |
200: OK
404: Not Found
{ "lp_number": "มข4320",
"vehicle_type": "car",
"vehicle_brand": "toyata",
"vehicle_color": "unknown",
"province": "กรุงเทพมหานคร",
"date_time": "2021 September 20 Monday at 16:34:34",
"source": "test/book.mp4 is a video file",
"name_source": "book"
}
{
"message": "No vehicle detected."
"status": 404
}
{
"message": "No license plate detected."
"status": 404
}
{
"message": "Couldn't recognize the license plate"
"status": 404
}
Last modified 4mo ago