How the zoom & pan option can be used with ginput?

Hi,

I have detected SHIFT of some large objects (changing size and shape) at 1 hour interval from 2 images. But, for the small objects, using zoom and pan option together with ginput option is required. Part of my codes are as follows:

f = figure;

imagesc(falsecolor_target)
button = 1;
i = 1;

while(button ~= 3)
    [x1,y1,button]=ginput(2);
  hold on
  if button == 1
      x = round(x1);
      y = round(y1);
      plot(x,y,'ro')
      text(x,y,num2str(i))
      match_green_tide(i,1) = label_target(y(1),x(1));
      match_green_tide(i,2) = label_target2(y(2),x(2));
  end
  i = 1 + i;
end

p = match_green_tide(:,1);
q = match_green_tide(:,2);

[r c] = size(match_green_tide);

for i = 1:r
  x1 = s_1(p(i),1).Centroid(1,1);
  y1 = s_1(p(i),1).Centroid(1,2);
  x2 = s_2(q(i),1).Centroid(1,1);
  y2 = s_2(q(i),1).Centroid(1,2);

    Dist_km(i) = haversine_km( ( Start_y_1+ (y1)*Ysize_1 )  ,  ( Start_x_1+ (x1)*Xsize_1 ), ...
        ( Start_y_2+ (y2)*Ysize_2 )  ,  ( Start_x_2+ (x2)*Xsize_2 )) ;

    plot(x1,y1,'ro')
    plot(x2,y2,'bo')

    plot([x1 x2], [y1 y2],'y') %%to show yellow lines between consecutive centroids as selected

end

The full codes and images are attached herewith.

Thanks in advance. Rashid