How do I scale the data to overlap on the image?

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Seungyong
Seungyong 2014-5-21
编辑： Image Analyst 2014-5-22
I calculated data from some processes.
the data is 127 X 127
using that data I drew the plot
Then the plot has 127 X 127
But I want to overlap the data plot with picture that is 1024x1024 resolution
So I tried to make a code
figure(1);
imshow('1.jpg') % 1.jpg is 1024 X 1024
hold on;
[c, h]=contour(z,'k') % z is 127X127 data
when I tried that code
the result is far from what I want
the contour plot is located on the left-top occupying 127X127
remaining region is not affected by contour plot.
I want to magnify contour plot to cover 1024 X 1024 image.
How do I do to solve my problem?

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回答（1 个）

Image Analyst
Image Analyst 2014-5-21
How about just multiplying all the coordinates by 1024/127?
  2 个评论
Seungyong
Seungyong 2014-5-22
multiplying all the coordinates?
how do I multiplying all the coordinate by 1024/127?
I don't know how to multiply that

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