An Improved Automatic Thumbnail Generation Algorithm Based on Interpolation Technique

In servers for mobile devices, the generating speed for thumbnails should be fast and efficient. Previous research focused on the visual quality of thumbnails. In this paper, an interpolation-based thumbnail generation method is proposed to accelerate the generation processes. The proposed algorithm was based on area average sampling interpolation, which an improved sampling method to reduce the amount of sample data. The algorithm also compared with the gaussian blur transiting interpolation-based algorithm and box blur transiting interpolation based algorithm. They were also compared with open source projects called ImageMagick and OpenCV. The result shows that the area average interpolation-based algorithm is faster than the other two algorithms without affecting picture quality.