is there any lib which could be used to recognize self written text (like taking a photo of a piece of paper)?
I have already searched on google but i have found nothing.
I hope somebody can tell me something.
I just did a quick google search so I don't know if this will fully satisfy your needs but it is a full OCR library made for iOS 7+. If this library in specific doesn't work then you'll want to research other OCR (optical character recognition) libraries.
https://github.com/gali8/Tesseract-OCR-iOS
EDIT: I should clarify that I mean it will perform the character recognition that you are asking for but without more specifics on your project I can't guarantee it will work for your use case!
Related
I am creating number recognization in ios on real time. I have found one ABBYY OCR library This is very good and fast but this is recognization both text and number but I want to only number recognization. Please help me. how can I do this?. From StackOverflow I have found one hint we can use English.edc file from dictionaries But this file is lock and can't able to open. What is the solution? please share your valuable knowledge with me .
I need to present and open pdf documents in my app. I would like to avoid third part libraries, because of update reasons (and I couldn´t find anyone created in swift).
I have been looking at QLPreviewController, UIDocumentInteractionController and presenting the pdf in an UIWebView. All these alternatives works fine for just presenting the pdf but I can´t find any built in search. I want functionality like the iBooks app.
Any advice is appreciated!
You'll likely wont find any 3rd-party frameworks written in Swift yet, simply because as of Swift 2.2 it's not binary compatible yet, and any binary framework written in Swift would be very fragile to break with even a minor update of Xcode (and updates to the compiler, that is).
I'm working on the commercial available PSPDFKit SDK for both iOS and Android. We're actually using a lot of C++ internally since raw performance is very important and Objective-C (and for many things, also Swift) are not yet fast enough for certain tasks.
We did invest a lot of time in adopting the latest Objective-C features such as nullability and generics next to declarations such as noescape for block-based API to make our SDK great to consume from within Swift.
While a separate Swift-wrapper could offer additional convenience, you'll find it very simple to use, and we're always working to adopt more features that improve bridging as they come available - there are a few interesting things in the Swift 3 proposals.
If you do not want to go the framework route, you can use CGPDFScanner to base a custom text extraction engine on. You will need to read up on Character Map Parsing - Page 446ff and many other sections - extracting text from a PDF document is surprisingly difficult, and after much work you'll be left with individual glyph positions and need to approximate where words are and if the document uses spaces or if you need to synthesize your own to correctly extract text. It's something that just takes a lot of experimentation and approximation to get right.
This is a known area and OpenCV might well be involved, but still to start from the scratch.
How has something like Evernote's scannable app been developed. I mean, how does it automatically recognize a document using a camera and then extract it.
What are the UIKit frameworks involved here and what are the libraries that may have been used. Or any nice articles or blogs. How does one go about understanding this.
This tutorial is what you might be needing. Although, this tutorial is in Python but all these function are available in iOS bindings.
Here, are results you will get.
Once, you have the ROI i.e. the page, you should run OCR to detect the characters. For this you can use Tesseract and this tutorial might be helpful.
For anyone coming here now, there are better solutions now. CIDetector does precisely this. And to have it working on a live camera feed, you'd have to use it on live CIImages being generated by AVFoundation (rendered using Metal or OpenGL).
I am familiar with Matlab and would like to use what I know to add the functionality I am looking for in my iOS application. The title really says it all, I would like my app to be able to use the mathematics capabilities that matlab provides like integrals, derivatives, cross products, etc. not any graphing or any of that but just basic equation solving things. Is there a way to add this functionality to it while keeping my application agile. I have heard of the matlab coder that allow code to be switched from matlab to c or c++ that could be used for an Xcode project. If this is the best solution, is that a very difficult coder to work with? This is my first application, I have literally been working with Xcode and objective-c for a few weeks but I have the basic framework of my application good to go. I need this to add the real functionality to it and make it very useable. Please go easy on me if any of my questions seem obvious, I'm a nube, I really appreciate your answers.
Josh
As you mentioned, MATLAB Coder can generate C code from your MATLAB function. The header (.h) and source (.c) files can be plugged into your XCode project. The key part of the work is to decide what the input and output of the function should be and how to interface the rest of the XCode project with the Coder-generated function. Also, existing MATLAB code may not be completely compatible with the Coder, so that some modifications to your MATLAB code may be necessary. The Coder has interactive processes that guide you through this process.
If you haven't done so yet, you should start by looking at some examples of MATLAB Coder provided by MathWorks, e.g.,
http://www.mathworks.com/help/coder/examples/c-code-generation-for-a-matlab-kalman-filtering-algorithm.html?prodcode=ME&language=en
I am having this problem, and I am not able to figure out the solution.
I wish to display an image in some window if possible(not necessary tough), and then move it across the page by sending events from keyboard.
The problem is I can't use LÖVE framework, as we can't integrate it into our setup.
So I would require the Lua api's to do so.
Is anyone here aware about it? Also do I have to install some kind of extra library to support color and image operations?
Thanks for sharing the knowledge.
Lua is quite a bare-bones language to start with, so there is no built in image support whatsoever. But this also goes for almost all other programing languages, image support is typically something contained in supplementary libraries.
You need to install some library providing GUI functionality (like IUP), or use an application integrating Lua with graphical libraries (like murgaLua, Löve, ...)
From the tags you attached to your question it seems that you're using an embedded platform. It might be useful for people to know which, in order to provide more useful answers.