Is Pixel Interpolation possible in MATLAB? If so, how?
28 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Ali Almakhmari
am 30 Jul. 2022
Beantwortet: Image Analyst
am 31 Jul. 2022
Hey guys. So I have a picture, but unfortunately, some pixels in it are completely black (the RGB values are 0,0,0). For those specific pixels, I would like to do some sort of pixel interpolation (replace those black pixels by a pixel that is interpolated from the surrounding area). I tried doing it myself but I struggled with multiple things, one of them is how to tell MATLAB what are the pixels that I want to replace and what are the pixels that I want it to interpolate from. Any ideas?
0 Kommentare
Akzeptierte Antwort
DGM
am 30 Jul. 2022
You should be able to use regionfill()
% a test array with a zero pixel
A = uint8(randi([0 255],5,5));
A(3,3) = 0;
imshow(A)
% create a mask that describes the zeros
mk = A == 0;
% inpaint
B = regionfill(A,mk);
imshow(B)
2 Kommentare
Image Analyst
am 31 Jul. 2022
% Split RGB image apart into separate color channels.
[r,g,b] = imsplit(rgbImage);
% Fill holes in each channel individually.
r = regionfill(r, mask);
g = regionfill(g, mask);
b = regionfill(b, mask);
% Recombine
rgbImage = cat(3, r, g, b);
There are other ways (some are perhaps more "accurate"), but this might be the simplest and be good enough.
Weitere Antworten (1)
Siehe auch
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!