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Re: Printing Graphic or saving graphic [message #53175] Fri, 23 March 2007 08:51 Go to previous message
Maarten[1] is currently offline  Maarten[1]
Messages: 176
Registered: November 2005
Senior Member
On Mar 23, 3:03 pm, David Fanning <n...@dfanning.com> wrote:
> rpert...@gmail.com writes:
>> I wrote a program that does some processing to an image, and then
>> makes a histogram. Except I have 20 images to look at and compare
>> their histograms. I can run the program 20 times, however, how do I
>> save or print the histogram so I can compare them?
>
> Well, let me count the ways....

In addition to those: save the arrays with the histograms (by string
them in a higher dimension array, or giving a new name), and plot
those in a single graph, or subtract the images, and look at the
histograms of the differences, or apply some other statistics to the
differrences, or both images (correlation comes to mind). A comparison
of the Fourier transform of the images can be entertaining as well.

Of course all 190 possible pairs of images gives quite a lot of
options, but you have to start somewhere.

Maarten
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