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Instant OpenCV for iOS by Kirill Kornyakov, Alexander Shishkov

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Working with images in Gallery (Intermediate)

In this recipe, we'll learn how to work with Gallery and will try to apply simple photo effects from the previous recipe to an image from Gallery. Also, it is the first recipe where we meet with the delegation pattern and actions (callbacks) for GUI elements.

If you run the corresponding project, you will get the following result:

Working with images in Gallery (Intermediate)

Getting ready

Source code for this recipe can be found in the Recipe06_WorkingWithGallery folder in the code bundle that accompanies this book. You can use the iOS Simulator to work on this recipe, but you will also need an image with a face in your Gallery. You can open the Safari ...

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