At first I was under impression that we were calling identify.exe once 
per each image, but actually it works even simpler - identifier can 
receive a file pattern with a wildcard such as "*.jpg *.png *.tif " and 
iterate over files itself.

Glad that it works for you!

- Max

On 18.12.2016 11:18 PM, Mark Wilson pubs@xxxxxxxxxxxx wrote:
> Hi Max,
> I saw that application but did not realize that it could be used the 
> way you suggested (in a batch mode).
> I now have two solutions to explore, yours and John's binary module. 
> Should keep me off the streets for a few days.
> Thanks everyone. Very, very helpful.
> Regards,
> Mark
>
> On 12/18/2016 2:07 PM, Max Zhaloba mzhaloba@xxxxxxxxxxxxxxx wrote:
>> We had a similar task on one of our projects. However there was not 
>> so many files, we also invoked an external utility to read the 
>> metadata. We used Image Magick (imagemagick.org).
>>
>> You can iterate over image files and call identify.exe with "-format" 
>> option that contains XML tags:
>> <image>\n<file>%i</file>\n<width>%w</width>\n<height>%h</height>\n</image>
>> and redirect the standard output to file. Then as soon as you wrap 
>> the contents of that file into the pair of opening/closing tags it 
>> becomes a well-formed XML an you can read it from XSLT.  And since 
>> performance is a factor for you, it will be faster to use <xsl:key> 
>> for that purpose.
>>
>> There's a handy installer of Image Magick for OS X at 
>> http://cactuslab.com/imagemagick, if you're on Mac.
>>
>> - Max
>> (blog.xml.rocks <http://blog.xml.rocks>)
>>
>> On 18.12.2016 9:54 PM, Mark Wilson mark@xxxxxxxxxxxx wrote:
>>> I have an XSL stylesheet driven by an XML data source that produces 
>>> about 5000 different pages, many with multiple images. I have been 
>>> adding by hand a placement-index to the XML data source that 
>>> arranges the images neatly, as with this page:
>>> http://www.cpslib.org/amp/europa-themes.htm.
>>>
>>> I am now faced with adding a huge number of images to a page or 
>>> pages like this:
>>> http://www.cpslib.org/flaws/flaws.htm
>>>
>>> I would like to add the placement-index to the XML data source 
>>> programmatically. Is there a way to obtain the height or width of a 
>>> jpeg image from the file itself (image.jpg, for instance) using 
>>> XSLT? Or, can someone suggest another way to do this programmatically?
>>>
>>> Feel free to wander around the website if you find it interesting.
>>>
>>> Thanks,
>>> Mark
>>>
>>>
>>
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