Graphics

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Android OpenGL Unit Testing

Every once in a while you go back to your toolbox and discover something shiny you haven’t shown the world before. I have a client who needed some OpenGL work done on Android, which brings up the whole question of how to unit test OpenGL code. I had some support classes for this lurking around […]

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IIOMetadata Tutorial – Part 3 – Writing Metadata

In Part 1 of this tutorial, we went over some background related to the Java ImageIO subsystem and how one could retrieve information about the supported ImageReaders and ImageWriters. In Part 2, we looked at how one goes about retrieving metadata from an image as it is read. In this third part, we will do […]

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IIOMetadata Tutorial – Part 2 – Retrieving Image Metadata

In Part 1 of this tutorial, we went over some background related to the Java ImageIO subsystem and how one could retrieve information about the supported ImageReaders and ImageWriters. In this second part, we will look at how one goes about retrieving metadata from an image as it is read. All the code associated with […]

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IIOMetadata Tutorial – Part 1 – Background

The Java ImageIO subsystem provides convenient methods for Java-based programs to read and write bitmap images. One can load an image in any supported format and then get access to the image data as a BufferedImage, or one can create a BufferedImage, draw to it using a Graphics or Graphics2D, and then save the image […]

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Java Advanced Imaging Downloads

After quite a while away from it, I recently came back to dealing with graphics I/O in Java. At one level, things have gotten much easier in the time I was away – in particular, the ImageIO library is now part of the standard JRE. This means that, for the most part, you can count […]

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