license:cc-by-nc-nd-4.0 region:us
---
license: cc-by-nc-nd-4.0
---
## Description
4,601 Images-22 Kinds of Bills OCR Data. The data background is pure color. The data covers 22 kinds of bills of multiple provinces. In terms of annotation, line-level quadrilateral bounding box annotation, line-level transcription for the texts were annotated in the data. The data can be used for tasks such as OCR for bills.

For more details, please refer to the link: https://www.nexdata.ai/datasets/ocr/1028?source=Huggingface


# Specifications
## Data size
4,601 images, 22 kinds
## Collection environment
pure color background
## Data diversity
including multiple types of bills, multiple provinces
## Device
cellphone
## Image Parameter
the image data is in .jpg format, the annotation file is in .json format
## Annotation content
line-level quadrilateral bounding box annotation, line-level transcription for the texts
## Accuracy
the error bound of each vertex of quadrilateral bounding box is within 5 pixels, which is a qualified

# Licensing Information
Commercial License
