Effacer les filtres
Effacer les filtres

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How can I extract and highlight the white portion of an image?

2 vues (au cours des 30 derniers jours)
Asher Zaidi
Asher Zaidi le 21 Juin 2018
Clôturé : Asher Zaidi le 21 Juin 2018
How can I extract the white portion of an image (see attached), or delete the black portion so that I have only the holes in the original image left? Also, how can I fill them in so I am able to see them?

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Mark Saad
Mark Saad le 21 Juin 2018
Modifié(e) : Mark Saad le 21 Juin 2018
You can try this link: https://www.mathworks.com/discovery/edge-detection.html
and this video: https://www.mathworks.com/videos/edge-detection-with-matlab-119353.html
Or since your image is purely black and white, you can try this:
img = imread('yourimage.png');
subplot(1,2,1);
imshow(img);
img = imcomplement(img);
subplot(1,2,2);
imshow(img)
  1 commentaire
Asher Zaidi
Asher Zaidi le 21 Juin 2018
Modifié(e) : Asher Zaidi le 21 Juin 2018
I'm sorry my question was unclear. I was hoping to select the white foreground of the image so that I can delete the background I wanted to overlay it on top of the original image.

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