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Image Activities - Image Comparison

Image Activities - Image Comparison

by Internal Labs

4

Activity

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Summary

Summary

A package containing activities for comparing image files

Overview

Overview

What

Activities that output an image file can have their results checked using an image comparison algorithm. The simplest of these is a pixel-by-pixel check for equality. More complex algorithms that take an error metric based threshold parameter can also be used. The latter are implemented using the Magick.NET library's Compare method.

Who

RPA developers, although QAs can also use it to run image specific scenarios.

How

Drag and drop the Compare Two Image Files Pixel By Pixel activity from under the UIPathTeam > Images node. Locate the two image files to be used in the comparison.

The activity returns a boolean that indicates whether or not the two inputted files are identical.

Drag and drop the Compare Two Image Files Using Threshold activity from under the UIPathTeam > Images node. Locate the two image files to be used in the comparison. Choose one of the available ErrorMetric values. An explanation regarding metrics can be found here. Set the required Threshold value. This represents the upper bound of the distortion based on the selected ErrorMetric for the two input images to be considered equal. The activity returns returns the computed Distortion. It also returns a boolean that indicates whether or not the two inputted files are equal based on the computed distortion and the Threshold value.

The supported image file types are:

  • PNG
  • JPEG
  • BMP
  • GIF
  • TIFF

Features

Features

You can introduce image comparison (pixel-by-pixel equality or error metric thresholded equality) in workflows

Additional Information

Additional Information

Dependencies

https://www.nuget.org/packages/Magick.NET-Q8-AnyCPU/ Magick.NET-Q8-AnyCPU - https://github.com/dlemstra/Magick.NET/blob/master/License.txt Apache 2.0 License

Code Language

Visual Basic

Runtime

Windows Legacy (.Net Framework 4.6.1)

Publisher

Internal Labs

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License & Privacy

License Agreement

Privacy Terms

Technical

Version

2.1.0

Updated

Apr 27, 2020

Works with

Studio: 21.10 - 22.10

Certification

Silver Certified

Support

UiPath Community Support

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