* Formats pbm, pgm, and ppm respectively produce a Portable Bitmap (PBM), Portable Graymap (PGM), or Portable Pixmap (PGM) file. The recognized file formats are pbm, pgm, ppm, pnm, rle, tiff, and pdf. However a valid output file name is always required when producing a TIFF or PDF file. Similarly, the output data is written to the standard output when argument outputfile is not specified or equal to a single dash. The DjVu data is read from the standard input when argument djvufile is not specified or when it is equal to a single dash. Yum install ImageMagick而在ubuntu / Debian中我们可以使用ĭdjvu和convert命令的功能非常的强大,在这里直接将linux中的帮助文档贴在下面,以便查找相应的功能:ĭdjvu -format=fmt ĭecode the DjVu file djvufile, produces the image file outputfile. If an output directory is not specified, Variations will determine this location by looking at the filesystem usage statistics for each LeaseManager's ContentDir of a LeaseResource that matches the contentType "score".Ddjvu是linux下处理djvu图片的常用命令,该命令不是linux自带的shell命令,需要额外进行安装之后才能够使用,ddjvu主要实现djvu图片的格式装换和切割等功能。convert命令的功能更加的强大,在linux中使用man convert来查看给命令时,它给出了这样的解释:Ĭonvert - convert between image formats as well as resize an image,īlur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.ģ) 进入解压后的目录,并运行. ![]() outputDir, an optional attribute, is the path to the directory where Variations will place the deliverable files. If the DjvuProcessing tag is not present, then no processing will be done by the server (this approach is not supported for test sites). Enabling djvu processing requires the djvuProcessing attribute be set to true in dmlserver.xml. This mode should be used if the DjVu Encoder described below is not used. DjVu processing will convert the incoming tiff file to a pbm and then encode those to djvu files that are useable by Variations. This approach requires the derivative files placed in the incoming directory to already be djvu files that can be opened in Variations. Minimal score processing will copy the files from the incoming directory to where Variations can use them and update necessary metadata. There are three options for server processing of incoming score images: minimal, djvu processing, and none. Resizing - Batch processing run through Photoshop Actions for resizing all images back to their original score dimensions.Cleaning - removal of any handwritten marks that where not able to be erased by hand on the physical score.and to center the image for resizing purposes back to the original score dimensions Cropping and Centering - cropping the edges to clean scanning marks in the borders, etc.Brightness: (Adjust depending on the score).Contrast: Manual - starting point 172 (depends on quality of score, etc.). ![]() File Type: TIFF (*.tiff), 1 file per page.Page Size: Scanner's Maximum or Letter (depends on size of score and scanner).Color is okay, even though Variations will currently display these in grayscale.All pages should be the same dimensions. ![]() ![]()
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