Huawei ML Kit -Text-Image Super Resolution
Huawei ML Kit offers to overcome such challenges of our day to day life.
Huawei ML Kit provides Text Image Super-Resolution API to improvise the quality and visibility of old and blurred text on an image.
Text Image Super-Resolution can zoom in an image that contains the text and significantly improve the definition of the text.
Introduction
Quality improvement has become crucial in this era of digitalization where all our documents are kept in the folders, shared over the network and read on the digital device.
Imaging the grapple of an elderly person who has no way to read and understand an old prescribed medical document which has gone blurred and deteriorated.
Can we evade such issues??
NO!!
Let’s unbind what Huawei ML Kit offers to overcome such challenges of our day to day life.
Huawei ML Kit provides Text Image Super-Resolution API to improvise the quality and visibility of old and blurred text on an image.
Text Image Super-Resolution can zoom in an image that contains the text and significantly improve the definition of the text.
Limitations
The text image super-resolution service requires images with the maximum resolution 800 x 800 px and the length greater than or equal to 64 px.
Development Overview
Prerequisite
Must have a Huawei Developer Account
Must have Android Studio 3.0 or later
Must have a Huawei phone with HMS Core 4.0.2.300 or later
EMUI 3.0 or later
Software Requirements
Java SDK 1.7 or later
Android 5.0 or later
Preparation
Create an app or project in the Huawei app gallery connect.
Provide the SHA Key and App Package name of the project in App Information Section and enable the ML Kit API.
Download the agconnect-services.json file.
Create an Android project.
Integration
Add below to build.gradle (project)file, under buildscript/repositories and allprojects/repositories.
Maven {url ‘http://developer.huawei.com/repo/'}
Add below to build.gradle (app) file, under dependencies.
To use the Base SDK of ML Kit-Text Image Super Resolution, add the following dependencies:
dependencies{
// Import the base SDK.
implementation ‘com.huawei.hms:ml-computer-vision-textimagesuperresolution:2.0.3.300’
}
To use the Full SDK of ML Kit-Text Image Super Resolution, add the following
dependencies{
// Import the Full SDK.
implementation ‘com.huawei.hms:ml-computer-vision-textimagesuperresolution-model:2.0.3.300’
}
Adding permissions
<uses-permission android:name=”android.permission.CAMERA “ />
<uses-permission android:name=”android.permission.READ_EXTERNAL_STORAGE” />
Automatically Updating the Machine Learning Model
Add the following statements to the AndroidManifest.xml file to automatically install the machine learning model on the user’s device.
<meta-data
android:name=”com.huawei.hms.ml.DEPENDENCY”
android:value= “tisr”/>
Development Process
This article focuses on demonstrating the capabilities of Huawei’s ML Kit: Text Image Super- Resolution API’s.
Here is the example which explains how can we integrate this powerful API to leverage the benefits of improvising the Text-Image quality and provide full accessibility to the reader to read the old and blur newspapers from an online news directory.
TextImageView Activity : Launcher Activity
This is main activity of “The News Express “application.
Activity_text_image_view.xml
This is the view class for the above activity class.
TextImageSuperResolutionActivity
This activity class performs following actions:
Image picker implementation to pick the image from the gallery
Convert selected image to Bitmap
Create a text image super-resolution analyser.
Create an MLFrame object by using android.graphics.Bitmap.
Perform super-resolution processing on the image with text.
Stop the analyser to release detection resources.
activity_text_super_resolution.xml
View file for the above activity.
Results
Conclusion
It’s wonderful to create useful application which provide the user accessibility to elderly with the help of Huawei ML kit.
References
