Module errors 

Error types for the OCR pipeline.

This module provides a comprehensive error handling system for the OCR pipeline, including various error types, helper constructors, and utilities for creating well-structured errors with appropriate context and error chaining.

Architecture

The error system is organized into several modules:

• [types] - Core error types (OCRError, ProcessingStage)
• [constructors] - Helper methods for creating errors with context

Main Error Types

• OCRError - The main error type used throughout the OCR pipeline
• ProcessingStage - Enum identifying which pipeline stage an error occurred in

Usage

use oar_ocr_core::core::errors::{OCRError, ProcessingStage};

// Create a processing error with context
let error = OCRError::tensor_operation(
    "Failed to reshape tensor for batch processing",
    std::io::Error::new(std::io::ErrorKind::InvalidData, "Invalid tensor shape")
);

// Create a configuration error
let config_error = OCRError::config_error("Missing required model path");

// Create a validation error with detailed context
let validation_error = OCRError::validation_error(
    "TextDetector",
    "input_size",
    "[640, 640]",
    "[320, 320]"
);

Error Categories

The error system supports several categories of errors:

• Processing Errors - Errors during various pipeline stages
• Inference Errors - Model inference and prediction errors
• Configuration Errors - Invalid configuration or validation failures
• Input Errors - Invalid input data or parameters
• System Errors - IO, tensor operations, and other system-level errors

Structs

OpaqueError

A simple, opaque error wrapper for cases where the original error type is not Send or doesn’t implement std::error::Error.

Enums

ImageProcessError

Errors that can occur during image processing operations.

OCRError

Enum representing various errors that can occur in the OCR pipeline.

ProcessingStage

Enum representing different stages of processing in the OCR pipeline.

Type Aliases

OcrResult

Convenient result alias for OCR operations.