How to extract the plate area only from black background
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
mohamed
am 3 Aug. 2012
Kommentiert: Rinku
am 31 Dez. 2014
Hi, i want to know how to crop the plate area only from the image shown below my code takes the RGB image & outputs this image, so i need only a way to extract the numbers area only here is the output picture
![](https://www.mathworks.com/matlabcentral/images/broken_image.png)
thanks in advance
0 Kommentare
Akzeptierte Antwort
Andrei Bobrov
am 3 Aug. 2012
II=im2bw(I);
s=regionprops(II,'Area','BoundingBox');
[ii,ii] = sort([s.Area],'descend');
out = imcrop(I,s(ii(2)).BoundingBox);
2 Kommentare
Weitere Antworten (2)
Image Analyst
am 3 Aug. 2012
You could pass the image into regionprops() and ask for area and eccentricity. The plate will have a lower eccentricity than the lines, and probably but not necessarily a larger area than any/most/all of the lines. But I can't tell that that rectangular blob with a bunch of holes in it in the lower left is not also another license plate. At least for this one particular image, you could get rid of that based on area or FilledArea.
0 Kommentare
Siehe auch
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!