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Blotches detection

The purpose of this work we propose a complete solution for detecting and removing spots movies based on some perceived feature of the human visual system. The performance of each component is assessed through objective research extensively tested on real video. The perceived quality of the frames has been restored and are evaluated by fuzzy picture quality printing for professional use. | HNUE JOURNAL OF SCIENCE Natural Sciences 2020 Volume 65 Issue 4A pp. 51-57 This paper is available online at http stdb.hnue.edu.vn BLOTCHES DETECTION Nguyen Thi Quynh Hoa Falcuty of Information Technology Hanoi National University of Education Abstract. Blotch detection and removal is an important issue for archive film restoration and it can be extended in many other field of image processing. In this work a new proposal including an automatic detection method and inpainting scheme is introduced. First a technique for automatically detecting blotches based on local changes of pixels on consecutive frames is applied. Specifically a two-stage Simplified Ranked Order Difference SROD detector is proposed to identify blotches on frames. Next an improved inpainting was applied to restore the blotches so that it is undetectable by viewers. Our proposal is executed automatically without external parameters. The proposal has been tested on a serial of natural images with different sizes and resolutions. Experimental results show that the proposed solution has been successfully detected with fairly high accuracy and quite smooth restored blotches. Based on result analysis the proposal has many potential and applications in the future. Index Terms-blotch detection blotch removal restoration inpainting. Keywords Terms-blotch detection blotch removal restoration inpainting. 1. Introduction Storage and processing of visual aids that do not affect their overall quality is still a challenging problem. Storage and handling of old movies is even more difficult due to the physicochemical properties of the film. Indeed many physical factors can affect the overall quality of the old-time movie such as moisture and heat one of the factors responsible for the fading of old movies. One of the common issues of interest and research is the restoration of old films damaged by various problems like grainy fuzzy faded and artifacts other structures. Until now a considerable effort has been .