How to crop out the edge tick marks on graph image?

I am working on a small project about a digitizer to be able to extract data from an image containing a graph. I am having problems with cutting edge tick marks on axes of a graph. How to cut them out without affecting the graph line in the image? I look forward to everyone's help.

[Walter Roberson]

Have you searched the File Exchange for tag:digitize https://www.mathworks.com/matlabcentral/fileexchange/?term=tag:%22digitize%22 and had a look at how existing programs are handling the situation (or not handling it) ?

[Walter Roberson]

For your plots of interest, are the axes always black (common) and are the lines always non-black (black lines happen sometimes) ?

Answer 1

[C B]

Is this what you are looking for @Trong Link , Removing Tickdir?

t=0:0.01:1; 
f=1; 
x=sin(2*pi*f*t); 
figure(1); 
plot(t,x);
ax = gca; % current axes
ax.TickDir = 'none';

%Tick mark direction, specified as one of these values:
%'in' — Direct the tick marks inward from the axis lines. (Default for 2-D views)
%'out' — Direct the tick marks outward from the axis lines. (Default for 3-D views)
%'both' — Center the tick marks over the axis lines.
%'none' — Do not display any tick marks.

More Properties can be found at https://in.mathworks.com/help/matlab/ref/matlab.graphics.axis.axes-properties.html

[Walter Roberson]

No, they have an image of a plot and want to extract data from the image.

[Trong Link]

No, sir. I have an image containing a plot and I want to remove all edge tick marks