Filter löschen
Filter löschen

how can we relate image pixels with elliptic curve points

1 Ansicht (letzte 30 Tage)
Muhammad Sohail Abid
Muhammad Sohail Abid am 22 Sep. 2018
how can we relate image pixels with elliptic curve points which are in form of a table of 256 rows and 482 columns and after repeating pixel value we need to move to next column value
  2 Kommentare
Image Analyst
Image Analyst am 22 Sep. 2018
After you read this link, attach a diagram, picture, or something to show what you want. I don't even know what "relate" or "move" means to you.
Muhammad Sohail Abid
Muhammad Sohail Abid am 24 Sep. 2018
disp('y^2 = x^3 + 5376x + 2438 mod 123457')
a=0:123456;
left_side = mod(a.^2,123457);
right_side = mod(a.^3+5376*a+2438,123457);
points = [];
for i = 1:length(right_side)
I = find(left_side == right_side(i));
for j=1:length(I)
points = [points;a(i),a(I(j))];
end
end
plot(points(:,1),points(:,2),'ro')
set(gca,'XTick',0:1:123456)
set(gca,'YTick',0:1:123456)
grid on;
pad_needed = 256 - (mod(size(points,1) - 1, 256) + 1);
if pad_needed > 0
points(end+pad_needed,:) = 0;
end
T = points;
Z = reshape(T,256,482,2);
img=rgb2gray(imread('lena.jpg'));
V=img(:);
V=V';

Melden Sie sich an, um zu kommentieren.

Antworten (0)

Kategorien

Mehr zu Geometric Transformation and Image Registration finden Sie in Help Center und File Exchange

Produkte


Version

R2013a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by