iosinstagramgpuimageuipinchgesturerecognizer
Circular White Pinch Gesture Overlay commonly used for Blurring Images in iOS
I have implemented the ability to blur images in my iOS app using the pinch gesture, however I would like to implement a circular white overlay that is commonly used as a reference point with the pinch gesture so that the user can adjust the amount of blur. Just like the image below:
The image above was from: https://media.tumblr.com/tumblr_lutwauVUW31qm4rc3.png
How can I implement this feature?
Thanks!
Solution
GaussianSelectiveBlurFilter in GPUImage lib may be help yo a lot. well,here is the github source.
I think it is not hard to use, hope you will enjoy it.
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