detect nail in hand using opencv in iOS [closed] - objective-c

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I am using the OpenCv Library for the object detection.
I downloaded the given example of face detection. In this example they are using haarcascade_frontalface_default.xml.
I have to detect Nail in hand. Please suggest me how can I do it?
I also saw this-
http://docs.opencv.org/doc/tutorials/features2d/detection_of_planar_objects/detection_of_planar_objects.html#detectionofplanarobjects
Please suggest me how I detect nail in hand.

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For the last couple of weeks i'v been trying to replicate the method in which Id Technologies used to hide hidden messages inside their own songs. For reference: https://youtu.be/yzFit0nldf4 .
I'm not sure if this was made by solely a software or a very smart use of heavy musical instruments, but that's what im trying to find out.
Using softwares like coagula might do a similar thing, but the brilliancy was how the coded sound was hidden. If you attempt to hear rendedered output it would sound obvious and aweful...
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Can the affdex SDK be used for eye tracking? [closed]

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I want to track the positions of eye balls in every frame (eye tracking) using affdex. Is this possible?
Affdex SDK does not perform eye tracking.
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So, I am currently making a 1942-style game. How can/should I set up the path for my enemies? I know I could do it with CGPathRef but is there an easier way to do it? It seems pretty out of place for more complex paths like for example these 2 I'd like to implement:
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I have tried to browse through the extension APIs and have searched google. I can find the information available for chrome.extension.sendMessage but its hard to find anything for the chrome.extension.sendRequest method.
Please help for the best tutorial to Chrome Extensions as atleast here Google is not helping me much :(
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iPhone programming - How to create a movie file from muti images and save it in iPod library? [closed]

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It is possible to do that?
please give me a hint.
I would investigate ffmpeg, specifically libavcodec - this will allow you to convert static images in to a movie file (assuming you can get it to compile for iOS).
As far as adding to the iPod library is concerned, you aint going to be able to do that - you can read from the library from within an iOS app, but not write to it.