A method and device for detecting subtitle clarity

Abstract

The embodiment of the invention provides a method and device for detecting subtitle definition. The method comprises the steps of obtaining a video file of to-be-identified subtitles, carrying out analysis to obtain a picture of each frame in the video file, and storing the picture of each frame to a queue corresponding to the video file; identifying the total character string length and the totalcharacter number in each picture through an OCR algorithm and calculating a first ratio of the total character string length and the total character number in each picture; comparing each first ratiowith a preset ratio threshold and determining a weight value of each first ratio; and determining the number of the weight values smaller than the preset ratio threshold in the weight values of the first ratios, calculating a second ratio of the number and the total number of the second ratios, and judging whether a subtitle display effect of the video file is qualified or not according to the calculated second ratio. Through application of the method and the device, the definition degree of the subtitles in the video file can be detected rapidly and conveniently.

Description

technical field [0001] The invention relates to the technical field of computer video, in particular to a method and device for detecting the clarity of subtitles. Background technique [0002] With the development of computer technology, people's life is becoming more and more colorful. In today's society, people usually sing karaoke as an entertainment item. Due to the wide variety of songs, people cannot completely remember the lyrics of each song when they sing karaoke. ) subtitles in the video can successfully sing a song, but due to various factors, such as hardware graphics card driver failure or software decoder problems, the subtitles in the song video will not be displayed normally, therefore, will It causes great inconvenience when people sing with reference to the subtitles in the video, and affects the user's singing experience. In the prior art, human eyes are often used to identify whether the subtitles in the MV video are displayed normally. [0003] In th...

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: the way of human eyes recognizing subtitles in the MV video is extremely inefficient, and many tasks require a lot of repetition. At the same time, due to the objective factors of human eyes , when the naked eye does a lot of recognition work, it will cause eye fatigue, and recognition errors will inevitably occur

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