2017-09-22 22:58:29 +02:00
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apply-exif-orientation.sh
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=========================
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`apply-exif-orientation.sh` retrieves the Orientation EXIF tag from an image
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file and rotates the actual image data according to the said orientation. The
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EXIF Orientation tag is deleted in the process. The goal is to allow the image
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to be displayed correctly by tools that don't handle EXIF metadata (such as
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ImageMagick's display).
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EXIF information is manipulated using exiftool, shipped with the
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`Image::ExifTool` Perl module (Debian package: `libimage-exiftool-perl`).
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Image is rotated using ImageMagick's `convert`.
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**Warning**: no backup of the original file is made!
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2017-09-23 05:30:51 +02:00
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tiff-batch-convert.sh
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===============
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`tiff-batch-convert.sh` converts TIFF images to another format of your choice,
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such as JPEG.
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Use case: you have a bunch of albums that you scanned to TIFF to preserve
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quality, with a good resolution, each album being in its own directory. But
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TIFFs are big; you want to generate compressed versions of the albums, possibly
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down-scalling the images, to share on the Internet or copy them to your
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smartphone.
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Usage:
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tiff-batch-convert.sh <DESTINATION> <ALBUM1> [ALBUM2 [...]]
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`<DESTINATION>` is the base directory in which the converted albums will be
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stored; each album will be in a separate sub-folder
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For example, this will convert every album under
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`$HOME/Pictures/my_albums_tiff` and store the result under
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`/mnt/usb0/my_albums_lowres` (supposedly a USB drive):
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tiff-batch-convert.sh /mnt/usb0/my_albums_lowres $HOME/Pictures/my_albums_tiff/*
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Limitations and bugs:
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- Existing destination files will be **OVERWRITEN WITHOUT WARNING**!
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- Input files must have the extention `.tiff` (lowercase), not `.tif`.
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- The albums provided on the command-line must contain TIFF images directly;
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sub-folders won't be searched.
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- Similarly, the full hierarchy of the input albums is *not* preserved: each
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album will be generated as a subfolder of `<DESTINATION>`, even if the
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original albums are stored in different places. It is easy to modify this
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behaviour in the script if needed.
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- To change the quality settings or the output format, you will have to edit
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the script (see the `USER CONFIGURATION` section of the script).
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Dependencies:
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- `convert` from ImageMagick (pkgsrc: ImageMagick, Debian: imagemagick)
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- `tiffinfo` from libtiff (pkgsrc: tiff, Debian: libtiff-tools)
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