iqedge-ai-ocr 0.2.0

IQEdge.ai OCR — PDF to Text converter with multi-pass self-correction. Extract text from scanned PDFs, images, books. 63 languages including Hindi, Telugu, Tamil, Arabic, Chinese, Japanese. Table detection, searchable PDF output.

IQEdge.ai OCR

PDF to Text converter with multi-pass self-correction. Extract text from scanned PDFs, images, and books. 63 languages including Hindi, Telugu, Tamil, Arabic, Chinese, Japanese. Table detection, searchable PDF output.

Install

pip install iqedge-ai-ocr

Usage

# Basic OCR — PDF to text
iqedge-ai-ocr ocr input.pdf

# Structured JSON output
iqedge-ai-ocr ocr input.pdf -o output.json

# Multi-language (Telugu + English)
iqedge-ai-ocr ocr input.pdf --lang tel+eng

# Full 4-pass correction (best quality)
iqedge-ai-ocr ocr input.pdf --passes 4

# CSV output
iqedge-ai-ocr ocr input.pdf --format csv -o output.csv

# Specific pages
iqedge-ai-ocr ocr input.pdf --pages 1-5,10

# Use Google Cloud Vision (most accurate)
iqedge-ai-ocr ocr input.pdf --engine google_vision

# Train from your documents
iqedge-ai-ocr train corpus_dir/

# System info
iqedge-ai-ocr info

Python API

from iqedge_ocr import OCRAgent

agent = OCRAgent(lang="tel+eng", max_passes=4)
doc = agent.process("input.pdf")

print(doc.text)           # full text
print(doc.confidence)     # 0.0 - 1.0
print(doc.word_count)     # total words
print(doc.to_dict())      # structured JSON

Languages (63)

Indian (14): Hindi, Telugu, Tamil, Kannada, Malayalam, Bengali, Gujarati, Marathi, Punjabi, Odia, Urdu, Assamese, Nepali, Sanskrit

Western Europe (9): English, Spanish, French, German, Italian, Portuguese, Dutch, Catalan, Greek

Scandinavia (4): Swedish, Norwegian, Danish, Finnish

Eastern Europe (13): Russian, Polish, Ukrainian, Czech, Hungarian, Romanian, Bulgarian, Croatian, Serbian, Slovak, Lithuanian, Latvian, Estonian

Caucasus (3): Georgian, Armenian, Azerbaijani

Middle East (4): Arabic, Hebrew, Persian, Turkish

East Asia (4): Chinese (Simplified/Traditional), Japanese, Korean

Southeast Asia (9): Thai, Vietnamese, Indonesian, Malay, Filipino, Cebuano, Burmese, Khmer, Lao

Central Asia (1): Uzbek

Africa (2): Swahili, Amharic

OCR Engines

• Tesseract (default) — free, offline, 63 languages
• Google Cloud Vision — cloud, highest accuracy for complex scripts
• EasyOCR — good for handwriting and curved text

How It Works

1. Pass 1 (200 DPI): Fast scan, extract all text with per-word confidence scores
2. Pass 2 (300 DPI): Re-OCR only low-confidence regions
3. Pass 3 (400 DPI): Re-OCR remaining stubborn regions
4. Pass 4: Post-processing with learned corrections, pattern matching, dictionary

Only re-renders the regions that need it — not the whole page each time. Preserves document structure: text as text, images as images, tables as tables.

Output Formats

• Text — plain text (default)
• JSON — structured with pages, regions, words, confidence scores
• CSV — tabular output with per-line confidence
• Searchable PDF — invisible text overlay on original pages

Training

Train IQEdge.ai OCR from your own documents to improve accuracy:

# Place PDF + ground-truth pairs in a directory:
#   corpus/document1.pdf + corpus/document1.txt
#   corpus/document2.pdf + corpus/document2.txt

iqedge-ai-ocr train corpus/

The training system learns character confusions and word corrections specific to your documents.

License

MIT