FFmpeg在视频图像处理中的应用

FFmpeg Software and Its Applying into Video Image Processing

目的法庭科学视频图像处理领域经常会用到多种软件工具,例如Photoshop、警视通、识慧等,这些软件都需要付费。而FFmpeg是一款开源免费的音视频处理软件,支持多种编解码标准,在视频图像处理中有很好的应用。方法本文介绍了FFmpeg软件的安装以及典型应用。我们利用拍摄的视频进行了多种图像处理操作,列举了常用的使用场景、语句及相应的配置参数。结果利用FFmpeg软件可以实现视频参数调整(如视频帧率、分辨率、翻转等)、添加删除水印、视频剪辑(如视频裁剪、提取音频、视频合成)以及存储视频关键帧等图像处理功能,处理时间短,效果显著。结论 FFmpeg软件应用环境易实现,操作简单快捷,适用场景丰富,在视频图像处理中如果得到充分利用,则会大大提高工作效率。

Objective Forensic image processing often utilizes the relevant software,e.g.,the Photoshop,VIS System and Video investigator,yet they are all requiring money-paid if used,thus,the free-charged FFmpeg,one audio/video processing software,is widely selected with its adaptation into varieties of format compiling/transcoding.Therefore,this paper is to introduce the software and trial-apply it.Methods With the introduction of FFmpeg software about its installation and typical application,one video was afterwards processed with the FFmpeg software to undergo multiple image disposal into the common application scenarios,codes and corresponding confi guration parameters.Results FFmpeg software is indeed of extensive applicability in video processing,capable of adjusting video parameters(e.g.,video frame rate/resolution/reversion),adding/removing watermarks,clipping video(e.g.,clipping/synthesizing video,extracting audio)and storing the key frames of video.FFmpeg software is also of less time consumption and remarkable effect when used to process video/image.Conclusions Owing to the excellence of wide applicative environments,simple and fast operation,abundant scenarios of utilization,FFmpeg software is able to enhance the work effi ciency greatly.