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 .
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I have planned to detect an image in a news paper play the video relevant to it. I have seen several news paper reading AR apps include this feature. But i couldn't find how to do so. How can I do it??
I dont expect any code. But like to know what are the steps I should follow to do this. Thank you.
You need to browse through the available marker-based AR SDKs - such SDKs let you defined in advance the database of images you would like to detect and respond to, and once any of these images is detected during runtime, you get some kind of an event with data on the detected image.
Vuforia is considered a good one and it has good samples, so it is supposed to be easier to start with. You should also check out Kudan, and there are more.
Is it possible to perform OCR on image (for example, from assets) instead of live video with Anyline, microblink or other SDKs?
Tesseract is not an option due to my limited time.
I've tested it but the results are very inappropriate. I know that it can be improved with OpenCv or something but I have to keep a deadline.
EDIT:
This is an example of what the image looks like when it arrives to the OCR SDK.
I am not sure for the others, but you can use microblink SDK for reading from a single image. It is documented here.
Reading from a video stream will give much better results, but it all depends on what you are trying to do exactly. What are you trying to read?
For reading barcodes or MRZ from i.e. identity documents, it works pretty well. For raw text OCR, not quite as good but it is not really intended for that anyway.
https://github.com/garnele007/SwiftOCR
Machine learning based, Trainable on different font, chars, etc.
and free
Local travel cards in Saint-Petersburg, Russia have got huge id numbers that aren't easy to read and type into a web page when topping up the card online. So I want to build a small app that would take a photo of a travel card and parse the number out.
The task is a bit easier than a free form recognition:
card is of the very well known size
id numbers are of known size, are located in the very well known location on a card and they are number only, no letters (okay, there are two variations I think and maybe they will add 1-2 more in the future)
even the font is known in advance
even the first several numbers are the same for most of the card (so far there are only two prefixes used)
How would you do it? Are there any libraries tuned not for the general OCR, but for a "hinted" OCR like I need?
Best regards,
Artem.
P.S.
Actually a free/cheap web service for this task would also be good enough
Yes Google has a library called Tesseract and there is an iOS SDK on Github you can import into your application. So you can use this SDK and it has some documentation that you can read that will explain how to set it up in your app. It has methods that will return you a string with the text of the card in the string. BUT it will be ALL of the text from the card. So best thing to do would be to:
1 "clip" the original image to extract a sub image that displays only the portion of the card you wish to get the numbers from.
2 Process this sub image through Tesseract to retrieve the string you are looking for.
3 Then parse through the string and pick out the data that you need.
But just be warned, it can be a bit quirky. This SDK tends to recognize words best from images that are scanned, not "taken a picture of". Because although it is an advance piece of technology, it isn't perfect. So to get it to work as perfectly as possible for you, try to get scanned copies of the originals.
Best of luck.
The ideal solution for you would have three components:
1) Detection of the card. This is useful because if you have the detection, then the end users have much easier time actually using the scanner, because they can place the phone above the card in an arbitrary direction
2) Accurate OCR component. Ideally, customizable for this exact font you have on the card, for the exact position on the card.
3) Parsing mechanism. This would enable you to obtain the exact string written on the card without writing huge amount of OCR parsing code.
BlinkID SDK has all this. It has a preset for detection cards in the ID-1 format. It has integrated OCR engine. And it provides RegexParser, where you can define the exact format of the text which you're trying to extract from the document.
BlinkID was initially built for scanning ID documents which have very similar properties as the problem you're trying to solve.
Note. I'm one of the developers working on BlinkID.
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!
I want to get stream of an ip-cam on my iPhone/iPad and want to display it on screen. By R&D i found that ffmpeg is the only way to achieve it but i found nothing on ffmpeg. Is there any other way to achieve it or a confirmed way to get compiled ffmpeg on mac please mention that. Material regarding how to use ffmepg or source code example will be highly appreciated.
Is there nothing built-in framework to achieve it if not then please mention if there is any free framework/sdk to achieve this functionality.
Thanks
There are actually a few.
here are some links
http://www.streammore.tv/
http://www.live555.com/
I am sure if you google you can find more.
I cannot only address the first one, because that is ours, but I didn't want this to sound purely like self promotion.