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Re: [Question #256069]: Change the DPI of the screenshots taken? --- does not make sense --- screenshots have the pixels as shown on the screen

To: sikuli-driver@xxxxxxxxxxxxxxxxxxx
From: Boris Lazarov <question256069@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 27 Oct 2014 07:46:30 -0000
Reply-to: question256069@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #256069 on Sikuli changed:
https://answers.launchpad.net/sikuli/+question/256069

Boris Lazarov posted a new comment:
Hello,

We are using SikuliX-1.1.0-Beta4 for automated GUI testing and we are
very happy with its capabilities and features. We are using a default
similarity level of 0.98, which is high enough to detect subtle gui
differences. However, we've noticed, that when the compared images are
black, there can be very big visual differences (as percent of the
image) and still they are matched with very high similarity - sometimes
exceeding our default level of 0.98!

The following two black images, for example, are matched with 0.982491: http://imgur.com/a/IjsDk
The following two gray images are not matched with 0.961927: http://imgur.com/a/9Yd9z

Is this expected behaviour? If so, do you have any idea how we can work-
around this?

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