There exist many different approaches for image segmentation. Most of these segmentation techniques were motivated by specific application purposes. In this article, we present an unsupervised segmentation algorithm through a multiresolution approach which uses both color and edge information in order to segment fruit images. In addition, we use a Quadtree structure that speeds up the whole pro...

Many segmentation techniques are available in the literature and some of them have been widely used in different application problems. Most of these segmentation techniques were motivated by specific application purposes. In this article we present the preliminary results of an unsupervised segmentation algorithm through a multiresolution method using color information for fruit inspection task...

Although different genotypes of mamey sapote with distinct pulp colors are consumed in countries from Central to South America, in-depth knowledge on genotype-related differences of their carotenoid profile is lacking. Since the fruit was found to contain the potentially vitamin A-active keto-carotenoids sapotexanthin and cryptocapsin, we sought to qualitatively and quantitatively describe the ...

Forests are important place for outdoor recreation and scenery appreciation. So in order to better meet the needs of the public, forest appreciation has received increasing attention from foresters in recent years. However, related research is still limited. Therefore, this paper seeks to examine the relationship between forest colors (measured by specific elements and spatial indices of color)...

Fruit ripeness identification is hard to measure especially when it involves color as main indicator. Suitable color model must be chosen to determine the right color for the ripeness identification. Hue, Saturation and Value (HSV) are proved to be a better choice because it can define the color intensity. Besides, it also helps to choose colors which are similar to the eyes. Manual grading pro...

Three bunches of unripe ‘Williams’ banana fruit of different maturity, 173, 156 and 71 days from bunch emergence, were harvested. Fruit from the top, bottom and middle hands from each bunch were fumigated for 24 h with 1-methylcyclopropene (1-MCP) at 0, 5, 50 or 500 nl l at 20C. All fruit were then stored at 20C in air containing 0.1 ml l ethylene and the time taken for each fruit to ripen (gre...

Harvest timing of oil olives is important for quality. Concerning the specific features each cultivar, physiological and quality characteristics during ripening Koroneiki were investigated in two successive years, A B, from trees on full production. In A, harvested at maturity indices (MIs) 0.9, 1.4, 2.1 4, while B MIs 1.1, 3.8 6.9. ~1, ~4 ~7 corresponded to green, red dark purple peel olives, ...

The physicochemical changes occur during artificial ripening of Red banana variety using ethylene was studied for nine days of storage in a ripening chamber at a storage temperature and relative humidity of 22 °C and 85-88% respectively. It was observed that moisture content of pulp increased gradually during the storage time along with gradual increase in TSS till the end of storage period. St...