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Scaling binary images with the telescoping template.

R A Ulichney¹, D E Troxel

¹Corporate Research Group, Digital Equipment Corporation, Maynard, MA 01754.

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|August 27, 2011

Summary

This summary is machine-generated.

A new digital scaling method enhances two-level images like graphics and documents. This fast, hardware-friendly approach uses logical operations for high-fidelity resizing without complex calculations.

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Area of Science:

Digital image processing
Computer vision

Background:

The increasing digitization of graphical and documentary materials necessitates efficient methods for resizing two-level images.
Existing scaling techniques may not be optimal for the unique characteristics of binary image data.

Purpose of the Study:

To develop a novel nonlinear scaling scheme for digital enlargement and reduction of two-level images.
To achieve high-fidelity scaling that is computationally efficient and suitable for hardware implementation.

Main Methods:

A nonlinear scaling scheme is proposed, leveraging the binary nature of the images.
The method employs logical operations, avoiding traditional arithmetic operations like addition and multiplication.
This approach simulates a convolution-like effect without complex computations.

Main Results:

The devised method achieves high-fidelity digital scaling for two-level images.
The technique is demonstrated to be fast and amenable to hardware realization.
No special pre-encoding of the images is required for the scaling process.

Conclusions:

The nonlinear, logic-based scaling method offers an effective solution for resizing binary images.
This approach provides a computationally efficient and hardware-friendly alternative for digital image scaling.
The technique meets the growing demand for high-quality digital scaling of graphical and documentary content.