How do I reverse the y-axis in image?

The image function reverses the y-axis so I wanted to reverse it to correct it. I know it has something to do with gca but cannot figure out the right code. Please help me.

Answer 1

[Orion]

You can change the direction of increasing values along the y-axis by setting the YDir property of the Axes object.

If you want the values to increase from bottom to top (2-D view), then set the value to 'normal'. Alternatively, if you want the values to decrease from bottom to top, then set the value to 'reverse'. For example:

ax = gca;
ax.YDir = 'normal'

[Ali]

But my instructor says its not a good idea to reverse the axis because this may cause problems when you add further things. Any idea why?

[Royi Avital]

The problem is this operation also flips the data.

Answer 2

[Chad Greene]

And another solution:

axis ij

[Iana Ladygina]

thank you!

[Wybekrik]

Just what i was looking for!

Answer 3

[Wagih Abu Rowin]

set(gca,'Ydir','reverse')

[Shushobhit Chaudhary]

This is the best answer. Thanks a lot. It helped me a lot.

Answer 4

[Shane]

Alternatively, you can flip the array. Either fliplr or flipud Flip Left-Right, or Up-Down, depending on how your data is.

plot(X, fliplr(Y))

Answer 5

[Jamel]

How do I reverse the "Interference from Satellite Constellation Communication Link" code, where the direction starts from the opposite way.