Android : Capture a document & Scan it using camera [closed]

Asked 22/7, 2011 at 6:21 Answered 8/2, 2017 at 9:35

I would like to develope an application in android. The requirement is to scan a document using the camera and to convert the scanned data to a pdf file, so that it could be used as an attachment in mail.

Please provide me some sample code... Thank you.

Pennsylvanian answered 22/7, 2011 at 6:21 Comment(7)

Why not just send the image? What do you mean "scan" do you mean OCR and conversion to PDF? – Lundy 22/7, 2011 at 6:31

I would like to digitize any paper documents by photo shooting. Simply take a picture of any paper documents such as receipts, whiteboards, notes, and auto-crop image, enhance image quality and to create an industry standard PDF file, something like the CamScanner app available in android market. – Pennsylvanian 22/7, 2011 at 6:42

Were you able to do it? I have downloaded simple pdf for Android but I don't know how to implment it. Can you give me any pointers. – Demimondaine 1/6, 2014 at 23:42

hi im working on same type of application... did you find any good api for image cropping and enhancing image quality – Disarrange 16/2, 2015 at 5:16

any library is available for croping other than this github.com/jhansireddy/AndroidScannerDemo, if so please help me – Marvismarwin 26/4, 2016 at 10:47

Did you find anything ? Just to scan, crop and save as JPeg (or any image format) – Auto 12/1, 2019 at 22:47

I found two libraries quite useful: 1- github.com/jhansireddy/AndroidScannerDemo 2- libraries.io/github/jbttn/SimpleDocumentScanner-Android – Incentive 20/8, 2019 at 5:45

If you are looking for simple PDF functionality you might try this Simple PDF for Android there does not seem to be much else available. If you need OCR Suggestions for Android OCR as to the rest of it you are asking multiple questions, I suggest taking it one step at a time and asking one question per problem you encounter.

Lundy answered 22/7, 2011 at 14:8 Comment(1)

I understood his question... I have the same requirement. not talking about OCR, I just need to take a picture with the phone, then the API should at least help to properly crop the image (if possible enhance it). That's it. Any idea what can help to do that – Auto 12/1, 2019 at 22:33

For anyone looking for easy method, Try this library https://github.com/jhansireddy/AndroidScannerDemo

*Image returned here will be a Bitmap and not a pdf, You can save it with any mime type later on.

Asthenia answered 7/1, 2016 at 6:6 Comment(2)

Hi, how did you manages to make this code run? I am getting over and over an

java.lang.UnsatisfiedLinkError: dlopen failed: "/data/app-lib/com.scanner.demo-6/libopencv_java3.so" is too small to be an ELF executable

error on trying to open the camera – Pronate 23/8, 2017 at 14:21

@GabriellaAngelova You'll need to install OpenCV libraries before using it. Check out opencv.org – Metalliferous 11/10, 2017 at 16:0

Here's an API that looks promising.

"CamScanner API enables your application to automatically detect page borders and smartly remove background. Enhance your image with up to five modes to make the contents clearer and more readable. Return processed documents to your app in JPG or PDF format."

https://dev.camscanner.com/?language=en-us

Colby answered 18/1, 2016 at 16:57 Comment(0)

i'm working on project like this idea , Use mobile vision Api it's result is very good but it depend on image quailty and words font size check this likCheck this Link

Natty answered 8/2, 2017 at 9:35 Comment(1)

Links to external resources are encouraged, but please add context around the link so your fellow users will have some idea what it is and why it’s there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. – Pains 8/2, 2017 at 10:7

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