I’m trying to make a 256×256 matrix of colors fading into each other. The top left corner is red, the top right is purple, the bottom right is blue, and the bottom left is green. The blue and the red fade into each other, which is easy to figure out. The problem is the green fades out radially, in both directions, and I can’t get my image to do that. My code so far is:

mat3d(:,:,1) = zeros(256,256);
mat3d(:,:,2) = zeros(256,256);
mat3d(:,:,3) = zeros(256,256);

increase = linspace(0,1,256);
decrease = linspace(1,0,256);

for i = 1:256
mat3d(i,:,1) = decrease(i);
mat3d(:,i,3) = increase(i);

for j = 1:256
dist = sqrt((256-i)^2+(256-j)^2);

end
end

I can’t figure out how to write the last for loop.I’m trying to make a 256×256 matrix of colors fading into each other. The top left corner is red, the top right is purple, the bottom right is blue, and the bottom left is green. The blue and the red fade into each other, which is easy to figure out. The problem is the green fades out radially, in both directions, and I can’t get my image to do that. My code so far is:

mat3d(:,:,1) = zeros(256,256);
mat3d(:,:,2) = zeros(256,256);
mat3d(:,:,3) = zeros(256,256);

increase = linspace(0,1,256);
decrease = linspace(1,0,256);

for i = 1:256
mat3d(i,:,1) = decrease(i);
mat3d(:,i,3) = increase(i);

for j = 1:256
dist = sqrt((256-i)^2+(256-j)^2);

end
end

I can’t figure out how to write the last for loop. I’m trying to make a 256×256 matrix of colors fading into each other. The top left corner is red, the top right is purple, the bottom right is blue, and the bottom left is green. The blue and the red fade into each other, which is easy to figure out. The problem is the green fades out radially, in both directions, and I can’t get my image to do that. My code so far is:

mat3d(:,:,1) = zeros(256,256);
mat3d(:,:,2) = zeros(256,256);
mat3d(:,:,3) = zeros(256,256);

increase = linspace(0,1,256);
decrease = linspace(1,0,256);

for i = 1:256
mat3d(i,:,1) = decrease(i);
mat3d(:,i,3) = increase(i);

for j = 1:256
dist = sqrt((256-i)^2+(256-j)^2);

end
end

I can’t figure out how to write the last for loop. images, colors, fading colors, script MATLAB Answers — New Questions

​