Hospital bill
1. Extract hospital bill information with image URL or pdf URL input
API:
| Method | URL | 
|---|---|
| GET | https://demo.computervision.com.vn/api/v2/ocr/document/invoice_hospital | 
Params:
| Key | Value | Description | 
|---|---|---|
| img | https://example.com/image.png | URL of photo or pdf | 
| format_type | url | Type of data to pass in, receive value: url,file,base64 | 
| get_thumb | true/false | Returns a aligned image | 
Demo Python:
import requestsapi_key = "YOUR_API_KEY"api_secret = "YOUR_API_SECRET"image_url = 'https://example.com/image.png'response = requests.get("https://demo.computervision.com.vn/api/v2/ocr/document/invoice_hospital?img=%s&format_type=url&get_thumb=false"% image_url,auth=(api_key, api_secret))print(response.json())
2. Extract hospital bill information with image file or pdf file input
API:
| Method | URL | content-type | 
|---|---|---|
| POST | https://demo.computervision.com.vn/api/v2/ocr/document/invoice_hospital | multipart/form-data | 
Params:
| Key | Value | Description | 
|---|---|---|
| format_type | file | Type of data to pass in, receive value: url,file,base64 | 
| get_thumb | true/false | Returns a aligned image | 
Body:
| Key | Type | Value | Description | 
|---|---|---|---|
| img | file | example.jpg | Image file or pdf file | 
Demo Python:
import requestsapi_key = "YOUR_API_KEY"api_secret = "YOUR_API_SECRET"image_path = '/path/to/your/image.jpg'response = requests.post("https://demo.computervision.com.vn/api/v2/ocr/document/invoice_hospital?format_type=file&get_thumb=false",auth=(api_key, api_secret),files={'img': open(image_path, 'rb')})print(response.json())
3. Extract hospital bill information with JSON input
API:
| Method | URL | content-type | 
|---|---|---|
| POST | https://demo.computervision.com.vn/api/v2/ocr/document/invoice_hospital | application/json | 
Params:
| Key | Value | Description | 
|---|---|---|
| format_type | base64 | Type of data to pass in, receive value: url,file,base64 | 
| get_thumb | true/false | Returns a aligned image | 
Body:
{"img": "iVBORw0KGgoAAAANSU..." // string base64 of the image or pdf to extract}
Demo Python:
import base64import ioimport requestsfrom PIL import Imagedef get_byte_img(img):img_byte_arr = io.BytesIO()img.save(img_byte_arr, format='PNG')encoded_img = base64.encodebytes(img_byte_arr.getvalue()).decode('ascii')return encoded_imgapi_key = "YOUR_API_KEY"api_secret = "YOUR_API_SECRET"img_name = "path_img"encode_cmt = get_byte_img(Image.open(img_name))response = requests.post("https://demo.computervision.com.vn/api/v2/ocr/document/invoice_hospital?format_type=base64&get_thumb=false",auth=(api_key, api_secret),json={'img' : encode_cmt})print(response.json())
4. Response
The response will be a JSON with the following format:
{"data": [xxxx],"errorCode": string,"errorMessage": string}
Where the data field is a list, each element in the list corresponds to an invoice page. Each of these elements has the following format:
{"type": "invoice_hospital","info": [xxxx]}
The info field will contain the following information:
- account_bank: This field is a list. Each element contains the following fields:- account_no
- account_no_box
- account_no_confidence
- bank
- bank_box
- bank_confidence
 
- buyer_name
- buyer_name_box
- buyer_name_confidence
- date
- date_box
- date_confidence
- form
- form_box
- form_confidence
- image
- image_table
- invoice_no
- invoice_no_box
- invoice_no_confidence
- lookup_code
- lookup_code_box
- lookup_code_confidence
- lookup_website
- lookup_website_box
- lookup_website_confidence
- payment_method
- payment_method_box
- payment_method_confidence
- purchaser_name
- purchaser_name_box
- purchaser_name_confidence
- serial_no
- serial_no_box
- serial_no_confidence
- sub_total
- sub_total_box
- sub_total_confidence
- supplier
- supplier_box
- supplier_confidence
- supplier_address
- supplier_address_box
- supplier_address_confidence
- table: This field is a list. Each element contains the following fields:- value
- box
- score
- label: Can be one of the following values:- number
- description
- unit
- quantity
- unit_price
- amount_before_tax
- tax
- tax_amount
- amount_total
 
 
- tax_code
- tax_code_box
- tax_code_confidence
- total_amount
- total_amount_box
- total_amount_confidence
- vat_amount
- vat_amount_box
- vat_amount_confidence
- vat_rate
- vat_rate_box
- vat_rate_confidence
Error code table:
| Code | Message | 
|---|---|
| 0 | Success | 
| 1 | The photo does not contain content | 
| 2 | Url is unavailable | 
| 3 | Incorrect image format | 
| 4 | Out of requests | 
| 5 | Incorrect api_key or api_secret | 
| 6 | Incorrect format type |