Digital image processing (DIP) is carried out to produce an altered image that is more
suitable for the intended application. Image filtering and image war** are considered to be …

Daltonisation refers to the recolouring of images such that details normally lost by colour
vision deficient observers become visible. This comes at the cost of introducing artificial …

Anisotropic diffusion has long been an important tool in image processing. More recently, it
has also found its way to colour imaging. Until now, mainly Euclidean colour spaces have …

The visual microphone is a technique for remote sound recovery that extracts sound
information from tiny pixel‐scale vibrations in a video. Despite having demonstrated success …

While the magnitude of colour gradients is well defined, its direction is not. The ambiguity in
the direction is due to our inability to decide if red colour is greater than green in the same …

The use of filters for image processing has long existed and is well established within
industrial practice and in academia. The wide-spread adoption of machine learning into …

Gradient-domain image processing is a technique where, instead of operating directly on
the image pixel values, the gradient of the image is computed and processed. The resulting …

Vision is the science that informs us about the biological and evolutionary algorithms that
our eyes, opticnerves and brains have chosen over time to see. This article is an attempt to …

In the paper “Colour-to-Greyscale Image Conversion by Linear Anisotropic Diffusion of
Perceptual Colour Metrics”, Farup et al. presented an algorithm to convert colour images to …