Lost the original data for a curve, only have the image. Now needs to get
the data back.
Heard people can get it back using Gimp.
Anyone knows how?
Many Thanks!
l*******G 发帖数: 1191
2
Assume it is y=f(x) curve.
in matlab,
help imread
will tell you how to read a image
help imshow
will tell you how to show the image on your screen
help hold
will tell you how to plot one figure on top of another
help plot
you can use it to plot a frame that just covers the image with
or you can plot 4 dots that overlap with the 4 corners of the image
appropriate
x and y axises
help ginput
will tell you how to read position from the figure
