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Last updated: Aug 02, 2017 11:17

Best practices in measuring rendered content using images

 

Continuing Perfecto Mobile's effort to provide user-experience oriented measurements, testers can now set checkpoints on images and expect an accuracy of ±½ second in the UX timer, based on the real result. For example, if the real image shows 10 seconds from the trigger of the checkpoint, the UX timer will be between 9.5 seconds and 10.5 seconds.

 

It is important to note that the UX timer is based on rendered text and images from the device UI, ensuring the desired rendered content is indeed visible and recognizable. This is different from other methods including network traffic analysis or native object analysis, which may give false insight where the desired content is not, in fact, rendered on the screen.

 

Define the following parameter settings to achieve high accuracy:
accuracy=true, source=camera, and match mode=same size

 

The match mode parameter valid is for checkpoint image only (and not for text)

 


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