dezoom.sh

Important note : dezoom.sh has been superseded by dezoomify-rs. Dezoomify-rs is easier to install, runs faster, and supports more zoomable image formats than dezoom.sh. If you encounter anything you could do with dezoom.sh and can't do with dezoomify-rs, please report it as a bug.

Download and assemble tiled images. Dezoomify for bash. Depends on imagemagick

Install instructions

Install dependencies

In linux (easy)

sudo apt install wget imagemagick

In MacOS

First install brew, then you can install the dependencies:

brew install imagemagick
brew install wget

In windows

Install cygwin, and inside it, install wget and imagemagick. For detailed instructions, read this wiki page.

Alternatively, you can install the Windows Subsystem for Linux (instructions), and follow the linux instructions above.

Download the script

You can use wget to download the script itself from the command-line:

wget -O dezoom.sh "https://raw.githubusercontent.com/lovasoa/dezoom.sh/master/dezoom.sh"

Or you can download it manually from your browser https://raw.githubusercontent.com/lovasoa/dezoom.sh/master/dezoom.sh.

Make it executable

chmod +x dezoom.sh

Download your image

Use the script like that: ./dezoom.sh template_url

Where template_url is the URL of the image, with the x position replaced by %X and the Y position by %Y

Advanced usage

The script accepts additional parameters:

-x : the first value to use for %X (default: 0)
-y : the first value to use for %Y (default: 0)
-X : the last value to use for %X (default: detect automatically)
-Y : the last value to use for %Y (default: detect automatically)
-u : the interval between two successive values of %X (default: 1 if xmax > xmin, -1 otherwise)
-v : the interval between two successive values of %Y (default: 1 if ymax > ymin, -1 otherwise)
-o : name of the output file. (default: result.jpg)
-f : Fast mode: don't retry downloads when they fail (default: false)

If -X (respectively -Y) is not set, then its value will be detected automatically: The script will perform a binary search to find the last value of %X (respectively %Y) that returns a valid image.

Find the parameters to use

You have to know the width and height (in tiles) in your image.

One solution is to find it by trial and error.

Another is to open the zoomable image in your browser, open the network inspector of your browser, zoom and scroll to the bottom right of the image, and see what are the first and the last loaded tile.

For instance, if the first and last tiles loaded are:

first: http://example.com/tile.php?tilePositionX=0&tilePositionY=0,
last: http://example.com/tile.php?tilePositionX=188&tilePositionY=105,

then you invoke the script like that:

./dezoom.sh -x 0 -y 0 -X 188 -Y 105 "http://example.com/tile.php?tilePositionX=%X&tilePositionY=%Y"

lovasoa / dezoom.sh