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Re: Scoring image

Posted by Herbie on Mar 21, 2020; 8:39am
URL: http://imagej.273.s1.nabble.com/Scoring-image-tp5023076p5023080.html

Good day Ethan,

your description appears being insufficient. Please post at least two
*typical* images in the original PNG- or TIF-format (JPG is not suited for
scientific purposes), so we can see what the actual geometric deviations
look like and if they are really purely geometric and of a simple kind. I
fear that you may have to deal with projective geometry which is far from
easy to handle...

Regards

Herbie

::::::::::::::::::::::::::::::::::::::::::::

Ethan Cohen wrote

> Suppose I take a sequence of 50 b/w images of an eagle on a branch with a
> telephoto lens.
>
> Now, sometimes the bird is in focus, sometimes not, as my hands on the
> camera jiggle in and out.
>
> Now I can use stackreg to align the images to say key image 1.
>
> But how can I get a score for each of the 50 images to how well they match
> key image 1?
> "Template matching" looks for little things,
> "Block matching" was too course.  Sift is sort of 1D.
> I guess it is sort of like facial recognition questions, but black and
> white.
>
> Suggestions?
>
> Ethan
>
>
>
> Ethan Cohen, Ph.D.
> Div of Biomedical Physics, WO62 Rm 1204
> Office of Science and Engineering Labs,
> FDA Center for Devices and Radiological Health
> White Oak Federal Res Ctr.
> 10903 New Hampshire Ave.
> Silver Spring, MD 20993
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html





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