Image optimization

In the previous pages of this chapter, we discussed how to handle images when they are ready to be loaded and displayed. We want now to discuss the way they get into the device and how to improve this process. It is now clear that images are big memory boulders, and instead of improving the user experience of our application, they can break it up if we do not take care of handling them properly. So, we can design the best framework to download images from a remote server, but if they are too large, or if their compression is not high enough, our application will be perceived as slow and expensive. Images need time and bandwidth to be downloaded. Hence, our aim is to find the right way to reduce their size as much as possible, without compromising their quality.

Tip

An application that displays images always needs a good design to ensure the download process is fast. To do this, images must be as small as possible regarding bytes used, to make it easier to transfer them from...