Get Started with AI Builder text Recognition 

Introduction to AI Builder Text recognition

Before you begin this course, we recommend that you read the Get started with AI Builder 

module and the "What is AI Builder?" documentation.AI Builder Text recognition is a prebuilt

AI model that extracts lines of text from documents and images. AI models usually require that

 you provide samples of data to train before you are able to perform predictions. You can pretrain

prebuilt models by using a set of samples that are provided by Microsoft so they are instantly 

ready for use in predictions. When you are predicting, AI Builder Text recognition will try to identify printed or handwritten text in images or documents, with help from Azure Computer Vision OCR service technology. Thus far, only English texts are supported, and the text is extracted from JPG, PNG, BMP, TIFF images, and PDF.

 

Business problems solved with AI Builder Text recognition

AI Builder Text recognition provides makers with Optical Character Recognition (OCR) capabilities. 

Being fully integrated with the rest of the business platform means that you can automate a wide range of scenarios that are currently only achieved with human intervention.

Build a Power Apps application that uses AI Builder Text recognition

Your task for this exercise is to take a picture, or upload an existing one from the file system,

 and then retrieve text lines that are present in the image. Then, you will build a Power Apps canvas

 app and will use the Text recognizer component, which can be useful for assisted data entry. For more 

information, see the What are canvas apps in Power Apps? and the Use the Text recognizer component articles in Power Apps documentation.

Create an application in Power Apps

To create an application in Power Apps, follow these steps:

1. Select Create in the Power Apps menu.

2. Select Canvas app from blank.

3. Name the canvas app Contoso Text Recognizer.

4. Select Phone.

5. Select Create.

Your next task is to give users the ability to automatically retrieve the text lines that are visible in the image.

1. From Insert > AI Builder, select Text recognizer (preview). This control allows you to take or upload a picture and automatically recognizes the container identifier.

 

2. Resize the control to fit in the screen.

Provide feedback about recognized text

To provide feedback to the user about recognized text, follow these steps:

1. Select Insert a new label.

2. Beneath the Text Recognizer component, change the Text property to Selected text:

3. Beside the Insert a text field, change the Default property to TextRecognizer1.SelectedText. 

This property will display the text that was manually selected by the user from the list of texts that were recognized by AI Builder.