How to zoom in to a particular point of an image?

Hi,

I'm trying to zoom in to a particular point of an image and not the full image.

In the above figure, I want to zoom in to the point n=4.9 only.

Kindly let me know as how it is to be done.

with regards,

rc

[Shubham]

Refer to this MATLAB Answer and see if it works out for you

https://www.mathworks.com/matlabcentral/answers/469478-zoom-to-a-particular-position-within-an-image

Add your image path zoom_image.m file and then adjust the position and change the zoom percentage.

[Rahul]

Hi,

Thanks for your advice.

But the code as above in the shared link doesn't detect a matlab (.m) file. It can detect jpg file.

Actually, I want something like this as below where the magnified image is superimposed with the original

for my profile which I want to zoom in at n=4.9 and superimpose with my original profile.

Not sure if the shared code can do this.

with rgds,

rc

Answer 1

[Dyuman Joshi]

Based on this comment by OP

Previous similar questions on MATLAB Answers -

https://in.mathworks.com/matlabcentral/answers/33779-zooming-a-portion-of-figure-in-a-figure

https://in.mathworks.com/matlabcentral/answers/497595-how-to-plot-a-magnification-inside-a-figure

https://in.mathworks.com/matlabcentral/answers/586151-how-can-i-add-a-zoom-in-the-peak-of-the-curve?s_tid=srchtitle

Related FEX submissions -

https://in.mathworks.com/matlabcentral/fileexchange/26007-on-figure-magnifier

https://in.mathworks.com/matlabcentral/fileexchange/5961-magnify?s_tid=srchtitle

https://in.mathworks.com/matlabcentral/fileexchange/59857-zoomplot

https://in.mathworks.com/matlabcentral/fileexchange/49055-maginset

Answer 2

[Image Analyst]

Try changing the axis limit by calling xlim and ylim to be the ranges you want.

help xlim

 XLIM Set or query x-axis limits
    XLIM(limits) specifies the x-axis limits for the current axes. Specify
    limits as a two-element vector of the form [xmin xmax], where xmax is a
    numeric value greater than xmin.
    
    xl = XLIM returns a two-element vector containing the x-axis limits for
    the current axes.
    
    XLIM(limitmethod) specifies the method used to determine the x-limits
    for the current axes. Specify the limitmethod as 'tickaligned',
    'tight', or 'padded'. This command sets the XLimitMethod property on
    the axes.
  
    m = XLIM('method') returns the current method for setting the x-axis
    limits, which can be 'tickaligned', 'tight', or 'padded'. By default,
    the method is 'tickaligned'.
 
    XLIM(limitmode) specifies automatic or manual x-limits selection.
    Specify the limitmode as either 'auto' or 'manual'. This command sets
    the XLimMode property on the axes.
 
    m = XLIM('mode') returns the current value of the x-axis limits mode,
    which is either 'auto' or 'manual'. By default, the mode is automatic
    unless you specify limits or set the mode to manual.
 
    ___ = XLIM(ax, ___ ) uses the axes specified by ax instead of the
    current axes.
 
    XLIM sets or gets the XLim, XLimMode, or XLimitMethod property of an
    axes.
 
    See also PBASPECT, DASPECT, YLIM, ZLIM, THETALIM, RLIM.

    Documentation for xlim
       doc xlim