android-imaging-utils

Additional

Language
Java
Version
1.0.0 (Aug 17, 2017)
Created
Aug 11, 2017
Updated
Aug 23, 2017
Owner
Ravindu Wijewickrama (ravindu1024)
Contributor
Ravindu Wijewickrama (ravindu1024)
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android-imaging-utils

A simple library that makes it easier to use the camera and do image processing via opencv.

Blur:

RGB2Gray:

Edge Detection (Canny):

Installation

1 - Add this to the allProjects repositories:

    maven { url 'https://jitpack.io' }

2 - Add this as an app dependency:

    compile 'com.github.ravindu1024:android-imaging-utils:1.0.0'

Features

  • OpenCV integration
  • Helper classes for Camera and Video Recording

Usage

1 - Open Camera

CameraController.connect(CameraController.CameraType.Default, 90);

CameraController.PreviewSize p = CameraController.getBestPreviewSize(640, 480); //get the best preview matching the aspect ratio

CameraController.setPreviewCallback(...);

CameraController.startPreview(previewTexture, p);

2 - Close/Disconnect Camera

CameraController.disconnect();

3 - Start Video Recording

VideoRecorder.startRecording(saveFilePath, rotation, maxRecordLengthMillis, camCoderProfile);

4 - Stop Recording

VideoRecorder.stopRecording();

Supported ABIs

  • armeabi
  • armeabi-v7a
  • arm64-v8a
  • mips
  • x86

Binary Size

The library size will be around 40MB with opencv 3.3.0 so if you need to keep the apk size small, include the following in your app gradle file, in the android tag

splits {
        abi {
            enable true

            reset()

            include "x86", "armeabi-v7a"
            universalApk false
        }
    }

This creates 2 apk files - one for arm and one for x86 platforms.

If you only need to use the CameraController and VideoRecoder classes without any image processing, add the following to your app gradle file

packagingOptions{
        exclude 'lib/*/libopencv_java3.so'
    }