The Local Binary Pattern (LBP) operator computes a local texture measure that is invariant to monotonic transformations of the image grey-scale. As a result of this property, calculating the LBP value in each channel of a colour image results in a triplet of values that are invariant to changes in illumination colour. Previous research has shown that histograms of grey-scale LBP values, and his...

Stable interest point detection is relevant for many computer vision applications. However, most detectors are sensitive to illumination changes, as their response varies with image contrast. In the best case, detection stability is increased using a simple image formation model assuming that illumination effects cause slowly varying changes in the image. This does not accurately model shadows ...

The colour-changing stimulus paradigm is based on a tacit assumption that kinematic attributes (velocity, movement direction) do not affect the detection of colour change (). In this study three experiments are reported that clearly demonstrate that the time needed to detect changes in colouration of a moving stimulus becomes shorter with its velocity. The reduction of reaction time with increa...

The purpose of this study was to examine the relationship between tooth root colour and age, and its possible application in age assessment. In this research altogether 100 tooth roots have been analysed. All teeth, that is their roots, were digitally recorded and the colorimetric treatment was made using Adobe Photoshop 7.0 computer program. Studies have shown no significant difference between...

The zebrafish (Danio rerio), traditionally used in genetics is now becoming increasingly popular in behavioural neuroscience. Zebrafish is a small teleost (bony) freshwater fish originating from northern India, used worldwide in research in most stages of development from embryo to adult. While, a couple of papers on zebrafish related to visual colour discrimination and learning have been publi...