I have just started working on Tizen. I want to know is there any built in support or library for image manipulating like contrast,color,crop etc to develop native application in Tizen.
After Tizen 2.3 you can use Cairo for modify or manipulate image.
You can find many samples and snippets with google search easily.
It's easy to control contrast, color, crop etc with cairo.
Additionaly Cairo in Tizen provide some additional function and not support some functions.
check the following document.
https://developer.tizen.org/development/api-references/native-application?redirect=https://developer.tizen.org/dev-guide/2.4.0/org.tizen.native.mobile.apireference/group__OPENSRC__CAIRO__FRAMEWORK.html
And refer this document for using cairo with evas image object in tizen native app.
https://developer.tizen.org/development/api-guides/native-application/graphics/cairo?langredirect=1
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To properly customize the app icons for various platforms when using the Corona SDK game engine, a fairly large set of image files of specific sizes needs to be included in the project's root directory and specified in the build.settings file (detailed requirements are found in the Building/Distribution Dev Guide.
Is there any way to easily generate all the required image files for iOS and Android builds starting with a single, hi-res image file?
I use generator Icon Generator for Corona SDK with my previous game.
Solutions using various image processing apps can be found on the Corona Community Forum. My own solution was to write a Script-Fu script in Scheme for GIMP.
For those who are interested, the script (make-corona-icons.scm) and its README (with bare bones installation instructions) can be found in this public GitHub repository. GIMP, the open-source cross-platform "GNU Image Manipulation Program", is free and excellent and can be downloaded here.
I use makeappicon.com. It has treated me well for many years.
I recently started to create an iOS version of my Android app and I've found myself struggling to find a method of extracting dominant colours from an image.
Over in Android there's a palette library provided by Google that allows you to do just that. (https://developer.android.com/reference/android/support/v7/graphics/Palette.html)
I'm can't seem to find any libraries that will allow me to that in iOS however.
It seems my friend use this library: https://github.com/pixelogik/ColorCube
Take a tour, it seems that they do what you are expected.
I am developing an image processing application in Centos with OpenCV using C/C++ coding. My intension is to have a single development platform for Linux and IOS (IPAD).
So if I start the development in a Linux environment with OpenCV installed ( in C/CPP ),Can I use the same code in IOS without going for Objective-C? I don't want to put dual effort for IOS and Linux, so how to achieve this?
It looks like it's possible. Compiling and running C/C++ on iOS is no problem, but you'll need some Objective-C for the UI. When you pay some attention to the layering/abstraction of your modules, you should be able to share most/all core code between the platforms.
See my detailed answer to this question:
iOS:Retrieve rectangle shaped image from the background image
Basically you can keep most of your CPP code portable between platforms if you keep your user interface code separate. On iOS all of the UI should be pure objective-C, while your openCV image processing can be pure C++ (which would be exactly the same on linux). On iOS you would make a thin ObjC++ wrapper class that mediates between Objective-C side and the C++ side. All it really does is translate image formats between them and send data in and out of C++ for processing.
I have a couple of simple examples on github you might want to take a look at: OpenCVSquares and OpenCVStitch. These are based on C++ samples distributed with openCV - you should compare the C++ in those projects with the original samples to see how much altering was required (hint: not much).
I am interested in using a library that supports lip reading to augment audio/voice recognition. I found out that Intel's AVCSR (which was bundled with OpenCV library) would be an interesting option to consider. Would there be any other libraries that can be used to achieve the same (lip reading to augment voice recognition)?
Also I have not been able to locate a source to download this library from. I already tried the OpenCV package from SourceForge (http://sourceforge.net/projects/opencvlibrary/) but it does not seem to have the AVCSR packages/files. Could someone who has already worked with something similar point me to the place where I can find these source files (either within OpenCV or elsewhere)?
Thank you.
I am thinking of making an application that requires extracting TEXT from an image. I haven't done any thing similar and I don't want to implement the whole stuff on my own. Is there any known library or open source code (supported for ios, objective-C) which can help me in extracting the text from the image. A basic source code will also do (I will try to modify it as per my need).
Kindly let me know if some one has any idea on this.
Thanks,
Vikram
One of the main open source libraries used to do OCR on iOS is a google-sponsored open source project called tesseract.
Here is some info on compiling tesseract for use in iOS apps:
tesseract
The same guy has a nice sample project on github demonstrating how a simple client might use the compiled library:
Pocket-OCR