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Info about Move action

PostPosted: Fri Apr 24, 2009 6:53 am
by KambinatoR
Dear Sir!
Please help me, i'm trying to understand how do the things work! And have some questions:

1. What algorythm it uses to compare pictures? And what exatly it compares in the frames?

2.What port it uses to send images to ftp, e-mail? or it uses standard Delphi kind of sets?

3. Explain please how exactly the Pixel Tolerance works? and what exactly changes if we set "pixelTolerance=" another value (not 10)?

I have found this about pixelTolerance
* Pixel stands for "Picture Element". The picture on an LCD or plasma display is made up of thousands of pixels which can't usually be seen individually by the naked eye. Each pixel is made up of three sub pixels [red, green and blue]. However working together these pixels make up the image you can see on a display.
* As the number of pixels on a screen is so huge, it's possible that there will be some failure at manufacturer level. When ordering a LCD or Plasma display, or a device which has a display built in such as a laptop, you should be aware of the possibility of pixel failure.
* There is a commonly accepted "tolerance level" set by each manufacturer, such that a display is only said to be faulty if the number of dead pixels exceeds this level. We can only take back displays as "faulty" if the number of dead pixels exceeds the manufacturer's guidelines.


Thanks a lot for your time!

PostPosted: Mon Jun 08, 2009 7:36 pm
by wuul
Hi

The program works by comparing each pixel in one captured frame to the same pixel in the previous (or base) frame. If a certain percentage of pixels on the screen (e.g. 50%) are changed, the movement is trigged - this can either send email or FTP the files (edit moveaction.conf to configure this).

PixelTolerance in this case refers to the amount that a pixel needs to be different from the previous value for it to count towards the "changed pixel %". You can change this value but probably don't need to as the default setting works fine. Use the slider in the program to configure the changed pixel %.

PostPosted: Wed Jun 10, 2009 8:06 am
by KambinatoR
wuul wrote:Hi

The program works by comparing each pixel in one captured frame to the same pixel in the previous (or base) frame. If a certain percentage of pixels on the screen (e.g. 50%) are changed, the movement is trigged - this can either send email or FTP the files (edit moveaction.conf to configure this).

PixelTolerance in this case refers to the amount that a pixel needs to be different from the previous value for it to count towards the "changed pixel %". You can change this value but probably don't need to as the default setting works fine. Use the slider in the program to configure the changed pixel %.


Thanks a lot! :)