How can I change the x and y-axis limits in Matlab to arbitrary scales?

[Kidphysics]

Hello, I have an image which gets displayed and has the x and y-axis ranging from 0-812 and 0-607 respectively. This is because these are the pixel sizes for my image. I would like to change the x-axis to show -3.85, 3.85 and for the y-axis to show -2.9,2.9. However, when I load my image into the figure and go into the property editor Matlab believes I am typing in the range of pixels still. I would just like to scale my image with these arbitrary scales. Please help!

 

[kreil]

axis([XMIN XMAX YMIN YMAX]) sets scaling for the x- and y-axes on the current plot.

Type 'help axis' or 'doc axis' for more info.

 

[Kidphysics]

axis([XMIN XMAX YMIN YMAX]) sets scaling for the x- and y-axes on the current plot.

Type 'help axis' or 'doc axis' for more info.

this gave me the same problem. it did not scale the image it simple moved the image window to this location.

 

[kreil]

B = imresize(A, scale) returns image B that is scale times the size of A.

 

[alphy]

Hi there,

To change the x and y-axis limits in Matlab, you can use the "xlim" and "ylim" functions. For example, to change the x-axis limits to -3.85 and 3.85, you can use the following code:

xlim([-3.85 3.85])

Similarly, for the y-axis limits, you can use the following code:

ylim([-2.9 2.9])

This will scale your image to the desired limits. Additionally, you can also use the "xticks" and "yticks" functions to specify the tick marks on the axis. For example, to have tick marks at -3.85, 0, and 3.85 on the x-axis, you can use the following code:

xticks([-3.85 0 3.85])

I hope this helps! Let me know if you have any further questions.