November 2013
Intermediate to advanced
576 pages
19h 3m
English
book
iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
by Kyle Richter, Joe Keeley
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Rendering a Filtered Image
To render a filtered image, all that is required is to request the outputImage from the filter’s attributes, and to call one of the available methods to render it to a context, an image, a bitmap, or a pixel buffer. At that point the filter operations will be applied to the inputImage and the outputImage will be produced. In the sample app, this occurs in two instances: if the user taps Preview in the filter view controller (as shown in Figure 19.5), or if the user taps Add Filter. When the user taps the Preview button in ICFFilterViewController, the previewButtonTouched: method is called. This method begins by initializing a Core Image context (note that the context can be initialized once as a property, but is done ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.