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 How do I get the bar width?		  New Topic  Reply to Topic
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save0804

Korea
20 Posts
Posted - Dec 02 2020 :  18:24:09  Show Profile  Reply
How do I get the 4 bar width?

xequte

38611 Posts
Posted - Dec 03 2020 :  01:09:23  Show Profile  Reply
Hi

1. Convert it to B+W:
https://www.imageen.com/help/TImageEnProc.ConvertToBWThreshold.html

2. Iterate over the scanlines, working from right to left until you find the first black pixel:

https://www.imageen.com/help/TIEBitmap.ScanLine.html


Alternatively, if you have IEVision you might find a good solution using Hough Lines:

https://www.imageen.com/help/TIEVisionImage.houghLinesP.html

Try the demo:

\Demos\Testing\IEVision\LinesDetect\LinesDetect.dpr



Nigel
Xequte Software
www.imageen.com
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