The Digitized Archival Document Trustworthiness Scale

Compression of Scan Digitized Handwritten Text for Indian Language Document

Document image compression is used for the speedy transmission of the data over the web. This paper deals with effective compression scheme for handwritten gray level documents in Devnagri script. The current OCR technology is not effective for handling the handwritten textual images. The proposed compression scheme is based on the separation of foreground and background of the image. Experimen...

Silverback: A Global-Scale Archival System

The rise of ubiquitous computing has created a need for wide-area durable storage. We propose a model and interface for such an archival system, that stores data in a durable, verifiable, available, and self-maintainable manner. We argue that such a system can be created by using novel techniques of erasure codes, secure hashing, and decentralized wide-area location infrastructures to distribut...

Silverback: A Global-Scale Archival System

The rise of ubiquitous computing has created a need for wide-area durable storage. We propose a model and interface for such an archival system, that stores data in a durable, verifiable, available, and self-maintainable manner. We argue that such a system can be created by using novel techniques of erasure codes, secure hashing, and decentralized wide-area location infrastructures to distribut...

Digitized images: what type of grey scale should one use?

One of the issues faced by engineers when designing a system which records an external event and represents it in the form of a digitized image on VDU screen is which type of grey scale to use. An experiment is described which compares, in a simulated digitized image, the effect of a linear and a logarithmic grey scale on the detectability of a straight-line signal embedded in visual noise. It ...

Grey-Scale Measurements in Multi-Dimensional Digitized Images