We propose in this paper to unify two different approaches to image restoration: On the one
hand, learning a basis set (dictionary) adapted to sparse signal descriptions has proven to …

Demosaicking is the process of reconstructing a full-resolution color image from the sampled
data acquired by a digital camera that apply a color filter array to a single sensor. This paper …

Sparse representations of signals have drawn considerable interest in recent years. The
assumption that natural signals, such as images, admit a sparse decomposition over a …

We propose the concept of a generalized assorted pixel (GAP) camera, which enables the
user to capture a single image of a scene and, after the fact, control the tradeoff between …

Demosaicking and denoising are the key first stages of the digital imaging pipeline but they
are also a severely ill-posed problem that infers three color values per pixel from a single …

The author begins by discussing the image formation process. The demosaicking methods
are examined in three groups: the first group consists of heuristic approaches. The second …

Single sensor digital color cameras capture only one of the three primary colors at each
pixel and a process called color demosaicking (CDM) is used to reconstruct the full color …

With the advent of low-cost and high-resolution digital cameras, and sophisticated photo
editing software, digital images can be easily manipulated and altered. Although good …

A digitally altered photograph, often leaving no visual clues of having been tampered with,
can be indistinguishable from an authentic photograph. As a result, photographs no longer …

This paper introduces a new interpolation technique for demosaicing of color images
produced by single-CCD digital cameras. We show that the proposed simple linear filter can …