Fuzzy image processing is a powerful tool formulation of expert knowledge edge and the combination of imprecise information from different sources. The fuzzy technique is an operator in order to simulate at a mathematical level the compensatory behavior in process of decision making or subjective evaluation. Edge is a basic feature of image. The image edges include rich information that is very...

introduction: the effect of education on esthetic perception is still unclear. this study aims to compare the perception of smile esthetics, under various conditions, among general and specialist dentists. materials and methods: a photograph of a woman’s smile was digitally altered using a software image editing program. alterations were made tothe dental midline, anterior gingival display, buc...