OCR-And-Compression

Main Pipeline Service: OCR → Adaptive Huffman Compression

This service connects the two required stages of the project into one end-to-end pipeline:

1. Stage 1 OCR microservice receives a noisy scanned document image and extracts text using a CNN-based OCR model.
2. Stage 2 compression microservice compresses that OCR output using a custom Adaptive Huffman algorithm and can then decompress it back to the original OCR text.

This pipeline service acts as the coordinator between the two microservices.

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Overview

The main pipeline service does not run OCR or compression itself.
Instead, it sends requests to the existing Stage 1 and Stage 2 services and combines their outputs into a single response.

End-to-end flow

Image
  ↓
Stage 1 OCR microservice
  ↓
Extracted text
  ↓
Stage 2 compression microservice
  ↓
Compressed bitstring
  ↓
Stage 2 decompression microservice
  ↓
Recovered text

Stage 1

CHECKPOINT_DIR=./runs/run_005 uvicorn server:app --host 0.0.0.0 --port 8000

Stage 2

uvicorn service:app --host 0.0.0.0 --port 8002

Pipeline

uvicorn pipeline_server:app --host 0.0.0.0 --port 9000