the devised software evaluated the total number, total area, and total volume of fabric pills. Moreover, the system evaluated distributions of pill size, shape, orientation angle, contrast and uniformity of pill spatial distribution on the fabric. In the same year, Xiaohong and Mu [18] proposed a method for pilling evaluation where the image of pilled fabric is preprocessed on the basis of image's gray-scale statistical and/or mathematical morphology. The pilling of fabric is, then, assessed synthetically on the basis of the size, the number and the morphology of pilling. Tested with knitted samples, the results proved to be satisfactory. In 1999, Fazekas et al. [19] located pill regions on fabric samples by combining template matching techniques and image thresholding. Special illumination arrangements, i.e. a bi-directional illumination, were used to grasp the depth information from images, so that pills were properly segmented from the background (see Figure 8). FIGURE 8
The trees could not sustain the attack of the locusts. symbols n. a sign or object that represents something adv. symbolically or somebody marks adj. symbolic Syn. marks v. symbolize The strange symbols found in Egyptian tombs have intrigued historians for centuries. I think this painting symbolizes the universal themes of humanity. synthesis n. the mixing of separate things to form a adv. synthetically* whole adj. synthetic* * not made by nature v. synthesize Syn. combination The language of Papiamento is a synthesis of Dutch and native Indian languages of Curacao. Vitamins are synthetically produced. tangible adj. real; that which can be felt adv. tangibly Syn. concrete n. tangibility The work of a teacher seldom produces tangible results until years after a student has graduated.
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