Table & Chart Extractor
Extract tables, charts, and forms from document images using local Qwen2.5-VL vision AI. Convert structured visual data to JSON. Handles complex layouts, merged cells, rotated text, and multi-column formats.
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
image_url |
string | ✅ | Document image URL or base64 |
extract_types |
array | ❌ | tables, charts, forms (default: all) |
include_chart_data |
boolean | ❌ | Extract numeric data from charts (default: true) |
language |
string | ❌ | Document language for OCR (auto-detected) |
Example Response
{
"tables": [
{
"page": 1,
"rows": 8,
"cols": 5,
"has_merged_cells": true,
"data": [
["Region", "Q1", "Q2", "Q3", "Q4"],
["North America", "$4.2M", "$4.8M", "$5.1M", "$6.3M"]
]
}
],
"charts": [
{
"type": "line_chart",
"title": "Monthly Active Users 2024",
"data_points": [{"month": "Jan", "value": 124500}, {"month": "Feb", "value": 131200}]
}
]
}
Use Cases
- Financial report data extraction for model inputs
- Survey result digitization from paper forms
- Academic paper data extraction for meta-analysis
Access
# x402 endpoint — pay $0.05 USDC per call (Base mainnet)
POST https://x402.ntriq.co.kr/table-chart-extract
# Service catalog
curl https://x402.ntriq.co.kr/services
x402 micropayments — USDC on Base, gasless EIP-3009