A framework for measuring sharpness in natural images captured by digital cameras based on reference image and local areas

摘要: Image quality is a vital criterion that guides the technical development of digital cameras. Traditionally, image cameras has been measured using test-targets and/or subjective tests. Subjective tests should be performed natural images. It difficult to establish relationship between results artificial test targets and data, however, because different types. We propose framework for objective metrics applied images captured by The uses reference high-quality camera find areas with appropriate structural energy attribute. In this study, was set measure sharpness. Based on results, mean performance predicting sharpness clearly higher than state-of-the-art algorithm test-target metrics.