How to remove unwanted objects of smaller than a certain threshold area from a grayscale image?
6 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
My algorithm is as follows :- - convert entire image to binary form - remove the objects of the area smaller than required. My problem is to how to work on the object of larger area in its gray scale form. Please suggest any other method if better
0 commentaires
Réponses (1)
Walter Roberson
le 12 Mar 2013
See bwareaopen() but notice that it works on black and white images. So you could convert your grayscale to B&W, run the area open, then use the resulting B&W image as a mask on your grayscale.
2 commentaires
Image Analyst
le 12 Mar 2013
Modifié(e) : Image Analyst
le 12 Mar 2013
To mask (one way of doing it):
grayImage(~binaryImage) = 0; % Set background to zero.
P.S. Richa, you might be interested in my tutorial: http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial-blobsdemo
Voir également
Catégories
En savoir plus sur Convert Image Type dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!