In this paper a colour image data compression method using block truncation coding (BTC) and genetic Algorithm (GA) is presented. This compression technique reduces the computational complexity and provides acceptable visual quality reconstructed images. BTC acts as the basic compression technique but it exhibits two disadvantages such as the false contour and blocking effect. Hence error diffu...

Meat quality score and its composite traits of the Hungarian Large White pigs were analyzed using the national station test database for the period of 1994-2005. Th e distribution of the meat quality score was substantially diff erent from the normal distribution and the average score of the population was close to the possible maximum. Based on the results the traits can hardly be improved by ...

This paper describes the development of an image colourquality model based on individual physical image statistical measures for mobile liquid crystal displays (LCD). Five natural images were colour-rendered in terms of lightness, chroma and hue. Each of the images was displayed on a 2-inch QVGA mobile LCD and assessed by a panel of 10 observers in terms of image quality using a categorical jud...

Tristimulus values (TSV) form the basis of colorimetry. They are transformed to other colorimetric coordinates for industrial applications such as colour specification, colour quality control, colour difference evaluations, device characterization for cross-media colour reproduction and recipe formulation. Accurate calculation of TSVs is highly desired by industry for open environment communica...

BACKGROUND Congenital colour vision deficiency (CVD), commonly called 'colour blindness', affects around 8% of men and 0.4% of women. Although many aspects of health (e.g. change in colour of urine) and healthcare (e.g. coloured medication, colour-coded diagnostic tests), and modern life depend upon colour coding (e.g. graphs, maps, signals), the impact of colour blindness on everyday life is n...

The archives of motion pictures represent an important part of precious cultural heritage. Unfortunately, these cinematography collections are vulnerable to different distortions such as colour fading which is beyond the capability of photochemical restoration process. Spatial colour algorithms—Retinex and ACE provide helpful tool in restoring strongly degraded colour films but, there are some ...

In this paper we will show how fuzzy similarity measures can be used for the construction of quality measures for colour images. First of all, we review the component-based approach in three different colour spaces, namely the RGB, HSV and Lab colour spaces. And secondly, we discuss a vector-based approach using vector morphological operators. Both approaches are compared using several experime...

This paper is aimed to develop some new measures for quantifying colour rendering between a reference and a test illuminant. In addition, CIE colour rendering index (CRI) and Colour Quality Scale (CQS) were evaluated using different sets of testing samples in order to reveal whether the two measures are sample dependent or not.

Although the organoleptic method of tea testing has been traditionally used for quality monitoring, an alternative way by machine vision may be advantageous. Although, the three main quality descriptors estimate the overall quality of madetea, viz., strength, briskness and brightness of tea liquor, the exact colour detection in fermenting process leads to a good quality-monitoring tool. The use...

Carotenoid-dependent plumage displays are widely assumed to be honest indicators of individual health or quality, which are used as cues during mate choice and/or agonistic signalling. Despite the fact that red, yellow and orange pigmentation of bills is common, and also variable between individuals, comparatively little is known about bill colouration as a condition-dependent trait. Furthermor...