[R] Image processing in R for BMI calculation

[Abby Spurdle]

Hi Paul,

If the background is relatively uniform:
Then a simple algorithm could be used, to distinguish foreground from
background points.
Essentially, returning a logical matrix.

Otherwise, I'm assuming that suitable pooling/convolution operations
could be used for this purpose.

Then you could estimate *relative* measures of height and mass from
the logical matrix.
(With more precise measures being possible, if you know the image scales).

There are a number of R packages for reading images.
Currently, I mainly use Simon Urbanek's package, "png".

I'm currently creating a package with support for pooling/convolution
operations, and related utility functions.
However, it's not ready yet.

Another option is Jeroen Ooms' package, "magick".


best,
B.


On Mon, Mar 1, 2021 at 5:39 AM Paul Bernal <paulbernal07 using gmail.com> wrote:
>
> Hello everyone,
>
> Does anyone know about any package for image processing, for example, to
> calculate body mass index pased on a picture, silouette or image.
>
> Any guidance will be greatly appreciated.
>
> Best regards,
>
> Paul
>
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>
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