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Supriya191
Frequent Visitor

How to use OCR - Computer Vision API from Azure cognitive service in PowerApps

We have the requirement to scan the image and read text from that image using powerapps. I have created "Computer Vision API" data connection and when i try to create it, unauthorized error is thrown. Please see attached screenshot. 

Can anyone tell me, is it possible to add this connection in PowerApps. Thanks.

7 REPLIES 7
Supriya191
Frequent Visitor

The error got resolved. Somehow there was a region problem with westus. 

Please tell me what are the arguments to pass into the function with one example

ComputerVisionAPI.OCR ([internal][Optional]string language, [internal][Optional]boolean detectOrientation, string format, OCRParameterImage Image)

Optical Character Recognition (OCR) to JSON

Hi,

 

Please check the parameter description below:

OCR

Summary: Optical Character Recognition (OCR) to JSON

Description: Optical Character Recognition (OCR) detects text in an image and extracts the recognized characters into a machine-usable JSON stream.

 

Syntax:

ComputerVisionAPI.OCR ([internal][Optional]string language, [internal][Optional]boolean detectOrientation, string format, OCRParameterImage Image)

 

Parameters:

Name

Type

Summary

Required

Related Action

language

string

(Language)

The language code of the text to be detected in the image.

False

 

detectOrientation

boolean

(Detect Orientation)

he BCP-47 language code of the text to be detected in the image.

False

 

format

string

(Image Source)Values: [Image Content, Image URL]

Source of the image - either included or by reference url.

True

 

Image

OCRParameterImage

 

 

True

 

 

Reference.

 

Regards,

Michael

Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Thanks Michael. 

I am using the below method with parameters.

ComputerVisionAPI.OCR(Format(string), Image(OCRParameterImage))

ComputerVisionAPI.OCR("https://www.netplates.co.uk/uploads/6c62efa141e2ad113fbfa15f43dfa4bf.jpg", First(MyPictures.Url))

 

Image parameter - First(MyPictures.Url) - is the first image from image gallery.

 

What should be specified in the Format parameter? If I specify image url from my image gallery, it's throwing invalid parameter error.

"https://www.netplates.co.uk/uploads/6c62efa141e2ad113fbfa15f43dfa4bf.jpg" is the example url string, still it throws "InvalidImageUrl 
Image URL is badly formatted". 
Please help me out here. Thanks.

 

Please help me for the parameter values in OCR function 

ComputerVisionAPI.OCR(Format(string), Image(OCRParameterImage))

format

string

(Image Source)Values: [Image Content, Image URL]

Source of the image - either included or by reference url.

True

 

Image

OCRParameterImage

 

 

True

 

What should be given for format and Image parameter with some example values, as I am getting "InvalidImageUrl 
Image URL is badly formatted" error. Thanks.

Anonymous
Not applicable

@Supriya191 Were you able to resolve the formatting issue? I am also interested and am wondering what parameters should be passed.

I also struggle with getting OCR to work in PowerApps. The most puzzling to me is that autocomplete doesn't even ask for an Image as Parameter:

 

ocr.png

It only wants a format but no content or url.

 

Any ideas? Getting this to run without flow would be extremely preferable.

Does anyone know if this has been resolved? I'm having the same problem - not sure how to make ocrtextv2 to work. The auto fill parameters do not make a lot sense to me.

Thanks

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