OCR output + metrics
{
"engine": "tesseract",
"engine_version": "5.5.0",
"exit_code": 0,
"field_metrics": {
"date_field_accuracy": 0,
"field_exact_match": 0.028571,
"field_normalized_match": 0.028571,
"matched_fields": 1,
"numeric_field_accuracy": 0.045455,
"total_fields": 35
},
"field_results": [
{
"exact_match": false,
"field_id": "currency",
"field_type": "currency",
"normalized_match": false,
"value": "EUR"
},
{
"exact_match": false,
"field_id": "customer_address",
"field_type": "customer_address",
"normalized_match": false,
"value": "27 Crescent Yard, Manchester M1 2AB"
},
{
"exact_match": false,
"field_id": "customer_name",
"field_type": "customer_name",
"normalized_match": false,
"value": "Juniper Claims Studio"
},
{
"exact_match": false,
"field_id": "discount",
"field_type": "discount",
"normalized_match": false,
"value": "€0.00"
},
{
"exact_match": false,
"field_id": "due_date",
"field_type": "due_date",
"normalized_match": false,
"value": "2026-06-27"
},
{
"exact_match": false,
"field_id": "invoice_date",
"field_type": "invoice_date",
"normalized_match": false,
"value": "2026-06-06"
},
{
"exact_match": false,
"field_id": "invoice_number",
"field_type": "invoice_number",
"normalized_match": false,
"value": "K26-804515"
},
{
"exact_match": false,
"field_id": "line_item_header",
"field_type": "line_item_header",
"normalized_match": false,
"value": "AMOUNT"
},
{
"exact_match": false,
"field_id": "payment_terms",
"field_type": "payment_terms",
"normalized_match": false,
"value": "Net 21"
},
{
"exact_match": false,
"field_id": "shipping",
"field_type": "shipping",
"normalized_match": false,
"value": "€0.00"
},
{
"exact_match": false,
"field_id": "subtotal",
"field_type": "subtotal",
"normalized_match": false,
"value": "€3,332.16"
},
{
"exact_match": false,
"field_id": "supplier_address",
"field_type": "supplier_address",
"normalized_match": false,
"value": "18 Hawthorn Row, Bristol BS1 4DJ"
},
{
"exact_match": false,
"field_id": "supplier_name",
"field_type": "supplier_name",
"normalized_match": false,
"value": "Meridian Paperworks Ltd."
},
{
"exact_match": false,
"field_id": "tax",
"field_type": "tax",
"normalized_match": false,
"value": "€666.43"
},
{
"exact_match": false,
"field_id": "total",
"field_type": "total",
"normalized_match": false,
"value": "€3,998.59"
},
{
"exact_match": false,
"field_id": "line_item_0_description",
"field_type": "line_item_description",
"line_item_index": 0,
"normalized_match": false,
"value": "Custom form printing"
},
{
"exact_match": false,
"field_id": "line_item_0_quantity",
"field_type": "line_item_quantity",
"line_item_index": 0,
"normalized_match": false,
"value": "17"
},
{
"exact_match": false,
"field_id": "line_item_0_unit_price",
"field_type": "line_item_unit_price",
"line_item_index": 0,
"normalized_match": false,
"value": "€31.12"
},
{
"exact_match": false,
"field_id": "line_item_0_tax",
"field_type": "line_item_tax",
"line_item_index": 0,
"normalized_match": false,
"value": "20.0%"
},
{
"exact_match": false,
"field_id": "line_item_0_amount",
"field_type": "line_item_amount",
"line_item_index": 0,
"normalized_match": false,
"value": "€529.04"
},
{
"exact_match": false,
"field_id": "line_item_1_description",
"field_type": "line_item_description",
"line_item_index": 1,
"normalized_match": false,
"value": "Secure courier envelopes"
},
{
"exact_match": true,
"field_id": "line_item_1_quantity",
"field_type": "line_item_quantity",
"line_item_index": 1,
"normalized_match": true,
"value": "8"
},
{
"exact_match": false,
"field_id": "line_item_1_unit_price",
"field_type": "line_item_unit_price",
"line_item_index": 1,
"normalized_match": false,
"value": "€50.75"
},
{
"exact_match": false,
"field_id": "line_item_1_tax",
"field_type": "line_item_tax",
"line_item_index": 1,
"normalized_match": false,
"value": "20.0%"
},
{
"exact_match": false,
"field_id": "line_item_1_amount",
"field_type": "line_item_amount",
"line_item_index": 1,
"normalized_match": false,
"value": "€406.00"
},
{
"exact_match": false,
"field_id": "line_item_2_description",
"field_type": "line_item_description",
"line_item_index": 2,
"normalized_match": false,
"value": "Water-resistant wallets"
},
{
"exact_match": false,
"field_id": "line_item_2_quantity",
"field_type": "line_item_quantity",
"line_item_index": 2,
"normalized_match": false,
"value": "3"
},
{
"exact_match": false,
"field_id": "line_item_2_unit_price",
"field_type": "line_item_unit_price",
"line_item_index": 2,
"normalized_match": false,
"value": "€117.85"
},
{
"exact_match": false,
"field_id": "line_item_2_tax",
"field_type": "line_item_tax",
"line_item_index": 2,
"normalized_match": false,
"value": "20.0%"
},
{
"exact_match": false,
"field_id": "line_item_2_amount",
"field_type": "line_item_amount",
"line_item_index": 2,
"normalized_match": false,
"value": "€353.55"
},
{
"exact_match": false,
"field_id": "line_item_3_description",
"field_type": "line_item_description",
"line_item_index": 3,
"normalized_match": false,
"value": "Acid-free dividers"
},
{
"exact_match": false,
"field_id": "line_item_3_quantity",
"field_type": "line_item_quantity",
"line_item_index": 3,
"normalized_match": false,
"value": "17"
},
{
"exact_match": false,
"field_id": "line_item_3_unit_price",
"field_type": "line_item_unit_price",
"line_item_index": 3,
"normalized_match": false,
"value": "€120.21"
},
{
"exact_match": false,
"field_id": "line_item_3_tax",
"field_type": "line_item_tax",
"line_item_index": 3,
"normalized_match": false,
"value": "20.0%"
},
{
"exact_match": false,
"field_id": "line_item_3_amount",
"field_type": "line_item_amount",
"line_item_index": 3,
"normalized_match": false,
"value": "€2,043.57"
}
],
"ground_truth_text": "Meridian Paperworks Ltd. Invoice 18 Hawthorn Row, Bristol BS1 4DJ BILL TO INVOICE NO. Juniper Claims Studio K26-804515 27 Crescent Yard, Manchester M1 2AB INVOICE DATE 2026-06-06 DUE DATE 2026-06-27 PAYMENT TERMS Net 21 CURRENCY EUR DESCRIPTION QTY UNIT TAX AMOUNT Custom form printing 17 €31.12 20.0% €529.04 Secure courier envelopes 8 €50.75 20.0% €406.00 Water-resistant wallets 3 €117.85 20.0% €353.55 Acid-free dividers 17 €120.21 20.0% €2,043.57 SUBTOTAL €3,332.16 DISCOUNT €0.00 SHIPPING €0.00 TVA 20% €666.43 TOTAL €3,998.59 Payment reference: K26-804515 · Fictional entities · synthetic invoice",
"methodology_version": "spatial-field-lines-v1",
"metrics": {
"cer": 0.790268,
"date_field_accuracy": 0,
"field_exact_match": 0.028571,
"field_normalized_match": 0.028571,
"matched_fields": 1,
"numeric_field_accuracy": 0.045455,
"total_fields": 35,
"wer": 1
},
"sequence_metrics": {
"cer": 0.790268,
"reading_order": "spatial-field-lines-v1",
"wer": 1
},
"stderr": "",
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