Approaches for digital halftoning of images using dithering threshold the input image with additive dithering noise. The paper presents a technique which thresholds the noise directly. The threshold is modified at each step such that the expected value of the output is equal to the input pixel’s gray value. Further, error feedback is used to correct the threshold. Tests on images show the metho...

We present examples of results from our studies of auditory primary afferent nerve fibers and populations of such fibers in the frog and gerbil. We take advantage of the natural dithering effect of internal noise, where it is sufficient, to construct highly predictive descriptive models (based on the Wiener series with kernels derived from white-noise analysis). Where the internal noise is insu...

Corrupted sensing concerns the problem of recovering a high-dimensional structured signal from collection measurements that are contaminated by unknown corruption and unstructured noise. In case linear measurements, recovery performance different convex programming procedures (e.g., generalized Lasso its variants) is well established in literature. However, practical applications digital proces...

A new technique for building stochastic clustered-dot screens is being proposed. A large dither matrix comprising thousands of stochastically laid out screen dots is constructed by first laying out the screen dot centers. Screen dot centers are obtained by placing discrete disks of a chosen radius at free cell locations when traversing the dither array cells according to either a discretely rot...

The evaluation of uncertainties and errors is an important topic in introductory physics and chemistry laboratory courses. Errors are usually classified into two groups depending on their source: systematic or bias errors, and random or statistical errors. The first group includes, for instance, miscalibrated scales or bad zero settings. They can be avoided if the meter is checked against a sta...

This paper presents a generalization of dispersed-dot dithering. While existing methods such as Bayer’s assume that color dots are arranged in a square matrix, this method works with arbitrarily-placed color points. To create a good dither pattern for arbitrarily-placed points, they must be ordered so that consecutive pairs are maximally separated. In this papre, the ordering is obtained by hie...