基于视觉感知的镶嵌图像质量评价方法

传统的图像质量评价方法难以较好地评价镶嵌效果。该文针对仅通过频率活动性(SFA)对镶嵌效果中拼缝光滑度进行评价获取较优效果图时存在的问题，依据视觉感知特性的对比敏感性，提出以结构对比度(SCD)感知因子评价镶嵌效果图的灰度和谐性，结合SFA和SCD感知因子构造了一个镶嵌图像综合评价模型，可以对镶嵌图像效果进行更符合主观视觉感知特性的评价。试验验证了该模型的有效性。

Mosaic Image Quality Evaluation Method Based on Visual Perception

Aiming at the problems of getting the optimal mosaic image that only according to the evaluation value for the smoothness near the seam in mosaic resultant image by Spatial Frequency Activity(SFA) and based on the difficulty in evaluating the mosaic image used the traditional image quality evaluation methods, this paper uses Structural Contrast Degree(SCD) to evaluate the harmony of the mosaic resultant image in light of the contrast sensitivity of the visual perception property, and combines SFA and SCD to construct comprehensive mosaic image evaluation model so as to get the ideal mosaic image accorded with the subjective visual perception greatly. The validity of the visual perception model is proved by experiments.