Trifork Blog

Axon Framework, DDD, Microservices

Posts Tagged ‘exiftool’

Scaling images – Quirks and tricks

August 6th, 2014 by

In one of our projects we created functionality to upload images. These images can, after being uploaded, be viewed on a grid or on  a detail page. The grid shows a thumbnail and the detail page shows a medium variant of the image. To create these variants we have used java ImageIO, imgscalr, ImageMagick (im4java) and Exiftool. Sounds like quite a few libraries to create two different sized images, but it’s the result of trying to support as many images as possible and provide a good user experience. In this blog post I will explain how and why we have used these libraries to solve the problems we encountered.

Process flow (Click for larger view)

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Use Kibana to analyze your images

November 28th, 2013 by

If you are reading some technical blogs, maybe about search or data analysis, chances are big you have read about Kibana. You have seen stories about how easy it is    to use. Most of the blogging effort deals with getting data into kibana using logstash for instance. Maybe some of you have installed Kibana and are using it in combination with logstash. But what if you want to analyze other data. With the most recent release M4, Kibana is better than ever in analyzing other sort of data. In this blog I am going to show you how to create your own dashboard in Kibana. In order to do something useful with Kibana we have to have data. Peter Meijer had a very nice idea to index metadata from all of your images to learn about the type of photo’s that you take. I decided to put this in practice. I used Node.js and the exiftool to obtain metadata from images and store it in elasticsearch.

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