how to plot graphically a 256 x 256 square matrix in matlab

I have a matrix of size 256 x 256 which store finger print values obtained in Byte Frequency cross-correlation algorithm.how can i obtain a graphical plot the same in matlab?

Answer 1

[Walter Roberson]

imagesc(TheMatrix)

perhaps?

[Neetha Mary]

how can i label X-axis and Y-axis using imagesc()?

[Walter Roberson]

xlabel() and ylabel() . See also title()

[Neetha Mary]

can i use colorbar for both x and y axes?

[Walter Roberson]

No, you only get one colorbar(), and it reflects the range of colors used in the whole plot.

[Mike Garrity]

Actually, you can have multiple colorbars on a single axes, as long as they have different locations.

imagesc(magic(64))
colorbar('Location','eastoutside')
colorbar('Location','southoutside')

But, as Walter said, they are going to show the same colormap.

[Neetha Mary]

i want to obtain a graphical plot like this where X-axis is marked on the top of the plot. Can anybody help?

[Walter Roberson]

That cannot be done with colorbar() . You need to create a graphics item such as a patch or surface or image that has the desired values. It is probably easiest to create an axes that has an image in it.