Module preprocess 

Greyscale image preprocessing for OCR models.

Structs

ImageSource

Input image for crate::OcrEngine::prepare_input.

Enums

DimOrder

Pixel layout for image tensors.

ImageSourceError

Errors when constructing an ImageSource.

Constants

BLACK_VALUE

Normalized greyscale background value used by ocrs models (matches ocrs 0.12.x).

Functions

prepare_image

Convert an image to a normalized greyscale CHW tensor [1, H, W].