Cannot find FREAK detector in OpenCV

I am developing some code in OpenCV 2.4 and I want to test the FREAK detector but I get compilation errors. I am including the feature2d.h, what can I do to fix this?


FREAK is included in the OpenCV version 2.4.2, so you cannot use it in your current version as it is not implemented. Download and install OpenCV2.4.2.

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Blackberry: Exception thrown no application instance at app startup


Recently, I've noticed that for any BlackBerry project I run, the JDE throws an error with message

Signing android app manually doesn't work properly

android google-play signing

I developed a Android App and could sign it with the Eclipse Plugin, but i wanted to sign it manually with jarsigner and zipalign, so that i can choose the algorithm and the keysize by my self.

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