AndroidScannerDemo | ScanLibrary is an android document scanning library built on top of OpenCV, using the app you will b | iOS library

by jhansireddy C++ Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(8)Vulnerabilities Install Support

kandi X-RAY | AndroidScannerDemo Summary

AndroidScannerDemo is a C++ library typically used in Mobile, iOS, Xamarin applications. AndroidScannerDemo has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

ScanLibrary is an android document scanning library built on top of OpenCV, using the app you will be able to select the exact edges and crop the document accordingly from the selected 4 edges and change the perspective transformation of the cropped image.

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Quality

Security

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Reuse

Support

AndroidScannerDemo has a medium active ecosystem.

It has 1025 star(s) with 475 fork(s). There are 81 watchers for this library.

It had no major release in the last 6 months.

There are 74 open issues and 68 have been closed. On average issues are closed in 232 days. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of AndroidScannerDemo is current.

Quality

AndroidScannerDemo has no bugs reported.

Security

AndroidScannerDemo has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

AndroidScannerDemo is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

AndroidScannerDemo releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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AndroidScannerDemo Key Features

No Key Features are available at this moment for AndroidScannerDemo.

AndroidScannerDemo Examples and Code Snippets

No Code Snippets are available at this moment for AndroidScannerDemo.

Community Discussions

Trending Discussions on AndroidScannerDemo

Crash when launch camera android permission

How to set camera orientation locked to portrait on android

Error cannot find symbol variable FileProvider package android.support.v4.content does not exist

TensorFlow + AndroidScanner - couldn't find "libopencv_java3.so"

Getting two gradle reports when building android application in android studio

Assertion failed (scn == 3 || scn == 4) in void cv::cvtColor(cv::InputArray, cv::OutputArray, int, int), file /../Linux/./../src/color.cpp, line 8000

Android Scanlibrary crashing on Xiomi

How to detect a paper in real time in android

QUESTION

Crash when launch camera android permission

Asked 2019-Dec-30 at 07:12

I'm using imported Scalibrary module sample app for image processing filter. It has two main button open camera and open gallery.

It's working fine on android Kitkat but when I try to launch the camera on android 9 It crash

I have tried adding : android:requestLegacyExternalStorage="true" on manifest but no luck

Note : I have already given permission camera and external write read storage on manifest

Update : Apparently I have to make the permission pop up for it to works because Im currently enabling it manually in the settings how do I do that ?

What Im I missing ?

Stacktrace

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ANSWER

Answered 2019-Dec-30 at 07:07

hi you can use these permission in your manifest file with other permission,

Source https://stackoverflow.com/questions/59526947

QUESTION

How to set camera orientation locked to portrait on android

Asked 2019-Dec-16 at 14:59

I'm building a scanner app using this scan library, how do I set the orientation in the library code to set the camera orientation locked to portrait? I've tried Lock Camera orientation to portrait and setting camera orientation to portrait not working

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ANSWER

Answered 2019-Dec-16 at 14:59

Don't use third party libs

https://developer.android.com/guide/topics/media/camera

You can use the official android docs to learn how to use and then apply what you got from the other links. If you want to edit and crop you cand find more information in those links:

How to crop and rotate image programmatically in android?

Android: Edit image intent

Source https://stackoverflow.com/questions/59358330

QUESTION

Error cannot find symbol variable FileProvider package android.support.v4.content does not exist

Asked 2019-Oct-01 at 19:56

I'm using Android studio 3.5 gradle plugin 3.5.0 version 5.6.2

After cloning and importing this Scanlibrary

I'm facing these two errors

error: package android.support.v4.content does not exist

error: cannot find symbol variable FileProvider

Any ideas?

AndroidManifest.xml

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ANSWER

Answered 2019-Sep-29 at 14:59

your project support androidx and the library you are using does not support androidx , so you need to enable jetifier in your project , so to enable jetifier, add those two lines to your gradle.properties file:

Source https://stackoverflow.com/questions/58156246

QUESTION

TensorFlow + AndroidScanner - couldn't find "libopencv_java3.so"

Asked 2019-Aug-13 at 18:51

I'm having a problem with combining Tensorflow and AndroidScanner.

I use Tensorflow to display an overlay over the camera feed. I take a picture with the camera, and then send it to a server. It works.

Now I imported the AndroidScannerDemo, I want to use the taken picture and crop/transform it with the newly imported module. It crashes. When I open the ScanActivity (from the AndroidScannerDemo), it tries to load opencv, and never succeeds. The error message is as follows:

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ANSWER

Answered 2019-Jun-06 at 19:04

The project you imported, only builds 32-bit versions of libScanner.so, and therefore only uses the 32-bit versions of libopencv_java3.so. In the short run, you can keep that, only set

Source https://stackoverflow.com/questions/50412393

QUESTION

Getting two gradle reports when building android application in android studio

Asked 2018-Sep-26 at 08:09

I am getting two build reports when building my project after adding a library to my project. The library link is this: https://github.com/jhansireddy/AndroidScannerDemo

The gradle reports are shared here too:

Gradle reports

The gradle files of both the library and the app are below.

Library Gradle:

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ANSWER

Answered 2018-Sep-26 at 08:09

Try using implementation intead of compile in your build.gradle

Like This

Source https://stackoverflow.com/questions/52510197

QUESTION

Assertion failed (scn == 3 || scn == 4) in void cv::cvtColor(cv::InputArray, cv::OutputArray, int, int), file /../Linux/./../src/color.cpp, line 8000

Asked 2017-Dec-28 at 13:27

I am trying to learn openCv with native code and I am taking reference from here.
I successfully build the project using ndk-build.
Now I want to make change in scan.cpp file which is responsible for getting point for image, crop it, scan it and set color.
I want to give different argument for line 321 in file which is
cvtColor(mbgra, dst, CV_BGR2GRAY);
Can I give any other argument for CV_BGR2GRAY.
If yes HOW? If no WHY?

Please guide me and tell me if I am missing anything. Thank you.

...

ANSWER

Answered 2017-Dec-28 at 12:15

Yes, you can give any argument you want. Would you get a reasonable output? It depends. CV_BGR2GRAY expects BGR (3 channel) input and will output gray (1 channel).

If you input is 3 channel BGR (and even if it isn't really BGR, opencv won't care) you can use any 3 channel conversions, for example CV_BGR2HSV which would result in 3 channel HSV output.

If your input is 1 channel - than you won't be able to use BGR 2 GRAY obviously.

Source https://stackoverflow.com/questions/48006518

QUESTION

Android Scanlibrary crashing on Xiomi

Asked 2017-Jun-22 at 09:19

i'm using ScanLibrary from here. I've successfully implemented this and it is working fine on all devices except the Xiomi. I wonder why it isn't working on Xiomi. I've tested this on Marshmallow, Lollipop and other api's as well and it's working fine on all other devices, only the Xiomi have problems. I also tried to reported this on their github page but got no reply so my last hope is stackoverflow. Please see, i'm not able to figure it out why it's not working on Xiomi.

I'm getting following exception on Xiomi devices:

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ANSWER

Answered 2017-Jun-22 at 07:15

After some attempts I have found this solution

I had made some changes to gradle and now it's work fine

In app gradle.build add these lines in defaultConfig{}

Source https://stackoverflow.com/questions/44045868

QUESTION

How to detect a paper in real time in android

Asked 2017-Feb-06 at 13:57

I am currently using Android Scanner which detects the edges of a paper if it is found in a picture, how do I achieve the same thing in real time? Is there a similar library available?

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ANSWER

Answered 2017-Feb-06 at 13:57

Found this great application, exactly fits my needs, just posting it here if someone else out there is looking for the same thing.

https://github.com/ctodobom/OpenNoteScanner

Source https://stackoverflow.com/questions/41954190

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install AndroidScannerDemo

You can download it from GitHub.

Support

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