Multilevel Histogram thresholding

currently i am working on video files.Can you tell how to perform multilevel histogram thresholding on the gray scale images extracted from the video files?

 Respuesta aceptada

Image Analyst
Image Analyst el 23 de Dic. de 2011
binaryImage = (grayImage < upperThreshold) & (grayImage > lowerThreshold);

5 comentarios

srikanth
srikanth el 24 de Dic. de 2011
thank you
srikanth
srikanth el 19 de Jun. de 2012
Thanks, but i have to perform automatic thresholding
Image Analyst
Image Analyst el 19 de Jun. de 2012
So use an algorithm to pick the two thresholds.
srikanth
srikanth el 26 de Jun. de 2012
thanks,
i have to work on the threshold has to be updated automatically according to illumination changes to get the bright objects like vehicle headlights in a night time traffic scene efficiently. can u suggest any sample code for this.
Image Analyst
Image Analyst el 26 de Jun. de 2012
You can look here: http://fiji.sc/wiki/index.php/Auto_Threshold
You might look in this book: http://szeliski.org/Book/drafts/SzeliskiBook_20100818_draft.pdf

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