A non-transitory computer readable medium, a system and a method. The method may include obtaining, by an image obtaining module, an image of a measurement site, the measurement site comprise the feature, the image of the measurement site comprises an image of the feature; processing, by an image processor, the image of the measurement site to provide an artificial image, the artificial image comprise a artificial image of an artificial feature, the artificial feature differs from the feature; measuring a parameter of the artificial feature to provide a measurement result, wherein the measuring comprises applying a measurement algorithm that is inadequate for measuring the parameter of the feature; and determining a value of the parameter of the feature in response to the measurement result.