How do I flip an axis using imagesc?

I want to display the Matrix eta (7x16) by using the imagesc function. I use the code:

T=[360 660]
p=[64 250]
imagesc(T,p,eta)

which produces the follwing image:

Now I want to flip the y-axis so that 50 is at the bottom and 250 is at the top. The Image should flip as well. Using

eta=flipud(eta)
T=[360 660]
p=[64 250]
p=fliplr[p]
imagesc(T,p,eta)

doesn't work. Thank you!

Answer 1

[Image Analyst]

Do you mean like with axis xy?

[x, y] = meshgrid(1:16, 1:7)
eta = uint8(rescale(sqrt(x.^2 + y.^2), 0, 255));
T=[360, 660];
p=[64, 250];
subplot(2, 1, 1);
imagesc(T,p,eta)
axis('on', 'image');

subplot(2, 1, 2);
imagesc(T,p,eta)
axis('on', 'image');
axis xy

[Sebastian Pichler]

Yes, your code works. Thank you!

[Image Analyst]

Then the usual thing to do to thank people is to "Accept this answer". Thanks in advance.