基于无参考结构清晰度的数字全息图像质量评价方法

With the analysis of image blur,the Structural Similarity (SSIM) was calculated to evaluate the degree of image blur on the basis of the gradient transformation of lensless holographic image,which was a kind of No-Reference quality evaluation method based on the Structure Sharpness.The method constructed a reference image by a low-pass filter,and assessed the holographic image quality by computing the SSIM of gradient between the original image and the reference one,had the advantage of structural similarity that was consistent with human visual system,while avoiding its shortcoming that was not sensitive to image blur.The experimental results show that it is an objective and effective method for quality assessment.