block matching image issue
5 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
When I did blockmatching algorithm on the tennis man image, and did a comparaison between the original and reconstructed image I got this black boxes, why?
5 commentaires
Walter Roberson
le 8 Avr 2023
(Just showing the output, not trying to debug the problem)
Untitled5
Réponses (1)
Walter Roberson
le 8 Avr 2023
Your attached code (but not your posted code) has
imshow (F2_recons - e1)
where both of those arrays are double precision and happen to contain integer values. The difference between the two arrays ranges between -255 and +206 . You are passing that array of values -255 to +206 to imshow() as a double precision array. By default, when passed a double precision array, imshow() assumes that the valuable part of the data is the range 0 to 1, and that anything below 0 should be treated as 0 and anything above 1 should be treated as 1. So you more or less end up binarizing the difference array.
You should be considering using
imagesc(F2_recons - e1);
colormap(gray)
2 commentaires
Walter Roberson
le 10 Avr 2023
Sorry, no, I do not see anything in your code that corresponds to vectors of motion, or anything that corresponds to motion at all. I cannot tell what you are calculating at all.
Voir également
Catégories
En savoir plus sur Red 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!