Study on degraded image sharpening method

Abstract

In industrial practice, images are often collected for study. In bad weather, the images collected may be degraded to different extents. Therefore, it is necessary to study how to sharpen these degraded images. Presently, domestic and foreign scholars mostly realise sharpening of degraded images by improving and optimising the existing classic algorithms based on image enhancement techniques and image restoration techniques. Meanwhile, subjective and objective evaluation methods for image sharpening effects have also been proposed. The article presents an image enhancement algorithm with adjustable threshold and tuning parameter and verifies this algorithm through experiment by subjective and objective evaluation methods, proposing a new solution for degraded image sharpening.

Keywords

• image restoration
• image enhancement
• tuning parameter
• adjustable threshold
• objective evaluation methods
• image restoration techniques
• image enhancement techniques
• foreign scholars
• domestic scholars
• degraded image sharpening method