Some Android projects I created for practicing.
Part of the codes come from other open source projects.
You can read about these projects in my blog:
http://johnhany.net/tech-article/android/
(The articles are written in Chinese)
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ChangeImage:
Change the image shown in app by clicking a button.
GrayProcssJni:
Turn the image into grayscale by clicking a button. Requires OpenCV-android-sdk, Android NDK.
GraySlidebar:
Transform the image between color and grayscale by sliding a slide bar. Requres JavaCV and OpenCV(with Java API).