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I have searched for a good Android Image Recognition API/library. I found some but they don't suit me because we have to put images on their server. I want one that allows you to search on your own server.
I have a list of products (name + image) in my database. I want to allow the user to snap a picture with his mobile and get related products images.
EDIT
After searching, I haven't found a library that can completely suit my need (searching on your own server). But I found one that is perfect compared to others (attach metadata to images with json, upload multiple images for an item): Kooaba. Unfortunately, there is not an Android library for Kooaba. Would be awesome if you can recommend something like Kooaba for Android.
Opencv is a computer vision set of libraries written in C++ by intel.It has a version for android i have used it but u need to have android phone as latest as possible.because with the version 2.2 and 2.3 you will only be able to run CV Camera App.So i would say a device with API level 11 or higher is better.
It is best suited if you use it in linux
setup linux(Ubuntu)
Download the Android SDK for Linux
Download the Android NDK for linux
Download the OpenCV for Android
Here are tutorials For-API8 and For-API11 for Stanford University to get you started with opencv and android
Another page from stanford to get some help
Hope that it helps
You can use OpenCV sdk for image detection. If you just wanted to recognise face then use androids own class refer this link http://www.developer.com/ws/android/programming/face-detection-with-android-apis.html
What about moodstocks.com ? It's a nice library and works like a charm
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Is there any simple (or even not so simple) way to transmit just small amounts of data (some small strings and the occasional number) between 2 iOS devices using Unity? I know there are some assets on the Asset Store, but those are upwards or $50 and far overkill. Or is there a good tutorial for this that I can follow?
those are upwards or $50
No, they are not. Here is a Bluetooth plugin for Android and iOS for $10.
The rule goes like:
If you are one person, use that. You will save yourself time. If you are working for a company, you should make your own plugin.
is there a good tutorial for this that I can follow?
If you decide to make your own Bluetooth plugin, you must first learn Java. Make a simple Android Java Bluetooth program and test it on your Android device. If it works, then you can then simply convert it into a plugin by seperating the code into functions such as bluetoothInit(), bluetoothConnect(), bluetoothSend(), bluetoothReceive(), bluetoothDisconnect(), bluetoothClose(). Then compile it into a plugin (jar or aar) file. You can now call the functions from Unity C#.
Learn Android Bluetooth API.
Links on how to call Java functions from C# in Unity. I suggest you follow the first link.
http://www.what-could-possibly-go-wrong.com/creating-a-native-android-plugin-for-unity3d/
http://www.thegamecontriver.com/2015/04/android-plugin-unity-android-studio.html
https://www.thepolyglotdeveloper.com/2014/06/creating-an-android-java-plugin-for-unity3d/
EDIT:
For iOS, you need to learn Objective-C. Learn iOS Bluetooth API then make a plugin.
https://developer.apple.com/library/ios/documentation/NetworkingInternetWeb/Conceptual/CoreBluetooth_concepts/AboutCoreBluetooth/Introduction.html
http://code.tutsplus.com/tutorials/ios-7-sdk-core-bluetooth-practical-lesson--mobile-20741
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Well i am trying to find a good software which helps me in coding. Hassle free and a bit helpy?
As of now eclipse is generally used by most of the people around the world. You can download the same either from eclipse official site and download the plugin for the same
Or you can use Android studio for the same. To do the same you can download it from the official android developers site https://developer.android.com/sdk/index.html .
Do keep in mind that after some time, android studio may be used more by people as it is developed only for android development and also google is stopping to provide support for eclipse.
One more thing that, once you download the software, you will need to install sdk's for the api level for which you want to develop
All the support for development for android is available at the above mentioned link. Information about all the libraries are also available at the same. For more resources, you can always use youtube for the possible leacture series and also use stackoverflow and codata whenever you are stuck.
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I need to add video filter in my android app like Instagram. I searched alot but did not find much stuff. Is there any library for this like aviary sdk for image editing ?
The shortest way to do this would be using OpenCV library for Java (importing it to Android project could be trcky) - it enables you to easaly extract each frame to different types of Image objects on which you can apply your filter (not sure if OpenCV contains tools for doing this) and then composing a new Video with modified frames.
Have in mind that this might be highly both CPU and battery consuming and I am not quite sure how would this work on various hardware configurations.
The other - longer - solution is to dig in to Android NDK and try to use ffmpeg. All in all it might decrease CPU load.
Also the new Android L release will provide some basic filters for Camera (not sure if this includes videos) https://www.youtube.com/watch?v=Xtp3tH27OFs so you could wait for some Compat library
I have give some filter for video like instagram filter using OpenGL ES. That is very fast and very nice.
If you just want to filter and show the video, u can see about this example, u can visit https://www.virag.si/2014/03/playing-video-with-opengl-on-android/. For another filter u can edit the fragment_shader.
But, if you need to render the video filtered and save that to sd card, you need mediacodec and mediamuxer. You can show the example from here http://bigflake.com/mediacodec/.
Hope this can help u, and sorry about my english.
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Is there any good Handwriting recognition API to help develop application on Android Platform? Google has released (around July 2012 http://www.google.com/insidesearch/features/search/handwritinginput/index.html) a feature to use handwriting for search in touch screen devices it looks great, is there a possibility to get access to these API's for use in Android Apps?
* I'm Product Manager at Vision Objects *
I guess that you'll be able to find what you're looking for on the developer forum of Vision Objects.
We announced new APIs 2 weeks ago.
And you can have a look on our web demo here.
The best solution for android handwriting recognition is Thulika application and Thulika Trainer
source code can be download from here
It is also avilable in google play.
The advantages of using this code is.
The code is easy to understand.
it uses Encog neural network library.
You can create your own character set using trainer application which is explained in the link
Recognition is very fast (even in low memory device)
You have to note following while using thulika trainer
download and use alpha.txt file from this link.you can edit this text file. otherwise it will not load the letters.
Engine file should be renamed as E_enginename and put in to the engine folder before clicking load letter .
eg : E_english.
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I'm looking for a book or other resource which gives me a good overview over the Android system.
Things I'm looking for:
how to define preinstalled apps / widgets
how to add drivers for sensor data (e.g. accelerometer)
how to configure display parameters
Every recommendation is welcome as I didn't find anything yet.
Sorry this is a late answer, but recently I've stumbled on a very helpful set of videos on this subject from Marko Gargenta -- it was very helpful to me understanding the different portions of android and how to get started with creating a custom ROM image:
Android Internals Part 1: http://www.youtube.com/watch?v=1_H4AlQaNa0
and Part 2: http://www.youtube.com/watch?v=rFqELLB1Kk8
I've seen a few books devoted to android system.
Embedded Android by Karim Yaghmour
Android Forensics: Investigation, Analysis and Mobile Security for Google Android by Andrew Hoog.
Marakana videos are useful also.
source.android.com - you should have done some build (to deal with common errors) before thinking about how to customize it.
This youtube playlist https://www.youtube.com/watch?v=KLUXPxxJc5c&list=PLtw7MVCFtZkTg93Ofr7KTusbSSauVu6bi is a very good start.
He introduces how to build a custom Android service there.
Also Embedded Android by Karim Yaghmour. (Everything covered from basics).
P/S: If you have one device, and you want to port pure Android (AOSP, Cyanogenmod) to it, then you kinda have to learn by experience at some point due to some of the source code not released by vendors.
Hope this help
I have no knowledge of such books, however, you can have clues on what you are asking in the source code. All these are done in the product definition.
You have a good example in ./device/samsung/crespo (which is the product definition for the Nexus S).
You define preinstalled apps by modifying the PRODUCT_PACKAGES variables, in the Makefile for your product.
Drivers are both done in the kernel, and in libsensors for the accelerometer, and every other sensors.