CODEWITHSUNDEEP
matlab
foozhan
foozhan

Reputation: 85

How to crop text in photo in matlab?

I have an image with arabic text , I wanna to crop and fit the photo to the text . for example something like this

enter image description here

how can I do this with matlab? I try to solve with regionprops function and BoundingBox property but it separate the none connected parts and considering them as separate objects but I want one object

Upvotes: 1

Views: 284

Answers (2)

carandraug
carandraug

Reputation: 13091

If you already got the bounding boxes for each individual object, you can deduce the bounding box that gets them all. However, just getting the indices to the coners will be much simpler and efficient. Supposing that mask is a logical matrix with your text:

xs = any (mask);
xi = find (xs, 1, "first");
xf = finf (xs, 1, "last");

Then do the same for the y axis:

ys = any (mask, 2);
yi = find (ys, 1, "first");
yf = finf (ys, 1, "last");

The bounding box for your text will be:

text = mask(yi:yf, xi:xf);

Upvotes: 2

Shai
Shai

Reputation: 114796

When you provide regionprops with a labeling of type logical it runs belabelbehind the scene, thus seperating it into its connected components. If you convert your BW mask to uint8 or any other type regionprops will treat it a single component providing you with the desired bounding box.

Upvotes: 1

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