We further discuss gaps and challenges in this domain. In addition, we provide the benchmark tasks and results from these papers or recent competitions. We present the statistics, document type, language, tasks, input visual aspects, and ground truth information for every dataset. We summarize each study by assigning it to one of three pre-defined tasks: document classification, layout structure, or content analysis. After a systematic selection process (according to PRISMA guidelines), we select 65 studies that are chosen based on different factors, such as the year of publication, number of methods implemented in the article, reliability of the chosen algorithms, dataset size, and journal outlet. This work fills this gap, presenting a meta-study on existing datasets. However, because of the very large variety of the actual data (e.g., scripts, tasks, dates, support systems, and amount of deterioration), the different formats for data and label representation, and the different evaluation processes and benchmarks, finding appropriate datasets is a difficult task. Finding appropriate datasets for historical document analysis is a crucial prerequisite to facilitate research using different machine learning algorithms. This paper presents a systematic literature review of image datasets for document image analysis, focusing on historical documents, such as handwritten manuscripts and early prints. If you would like to edit any video with subtitles, select save as plain format from Windows instead of using the proprietary formats, or even create and save a custom file, then Subtitle Edit is an ideal choice for you.A Survey of Historical Document Image Datasets While there are similar programs which are available free on the internet, none offers the level of features that this software product does. With all the fantastic tools that Subtitle Edit provides, it is surprising that it is still one of the most popular editing apps in the marketplace today. Last but not least, Subtitle Edit also includes a number of useful features such as the ability to add the time code to the title so that it becomes easier to track the changes. The second tool in the package is the "heading indicator", which helps you highlight the proper frame rate while editing. You can drag the windows on the right side of your screen to split the screen horizontally or vertically. One such tool is the "split screen toggle", which lets you easily open two windows simultaneously. Subtitle Edit also includes an amazing set of tools which you would not find in other similar products. This technique saves you so much time as you no longer have to go through each and every scene manually to create separate labels for each subplot. For example, if your film is 'Sneakers', the subplot for each of the characters in the film would be labeled Sneakers - John. The first technique is to use the "iso string" to create a label for every scene in the film with the help of a movie title. Moreover, you can also easily create subplots with the help of a few tools and techniques. Something which may give you so much a headache, such as out-of-sync subtitles, can all be fixed within the main window of this software by just adjusting the duration that you would like to delay or speed up the subtitles (depending on their sync status). Subtitle Edit is an amazing program, whose primary function is the creation and editing of subplots from a simple interface that would enable you to adjust a few lines in a matter of minutes.
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