lease call phone number above prior to faxing)
From: Heinz Tuechler
Sent: Monday, March 1, 2021 6:26 PM
To: Sorkin, John; Jim Lemon; Richard O'Keefe; T. A. Milne via R-help; Abby
Spurdle
Subject: Re: [R] Image processing in R for BMI calculation
D
I can't help but feel that a discussion on the merit of BMI is a
digression, from the OP's question.
In addition, to being of no relevance to "R Programming".
In relation to Richard's technical comments:
As per my previous post, it is possible to get *relative" measures.
(Assuming the images are n
more, MD 21201-1524
> (Phone) 410-605-7119
> (Fax) 410-605-7913 (Please call phone number above prior to faxing)
>
>
>
>
> From: R-help on behalf of Jim Lemon <
> drjimle...@gmail.com>
> Sent: Monday, March 1, 2021 4:23 PM
> To: Richard O'Keefe; r-help mailing lis
nt: Monday, March 1, 2021 4:23 PM
To: Richard O'Keefe; r-help mailing list
Subject: Re: [R] Image processing in R for BMI calculation
I must agree with the criticism of BMI as a diagnostic index. It is
easy to tell if a person is - ahem - wide and not very high with a
single glance. These elemen
I must agree with the criticism of BMI as a diagnostic index. It is
easy to tell if a person is - ahem - wide and not very high with a
single glance. These elementary parameters can easily be deduced from
an image of said person. However, it does not convey that essential
ratio of muscle to - ahem
"Body Mass Index" is a rather bizarre thing:body.mass.in.kg / height.in.m^2I
have never been able to find any biologicalor physical meaning for this. Yet
cliniciansare solemnly advised to measure the weight tothe nearest 0.1kg and
the height to thenearest 0.1cm.How do you propose to determine t
"Body Mass Index" is a rather bizarre thing:
body.mass.in.kg / height.in.m^2
I have never been able to find any biological
or physical meaning for this. Yet clinicians
are solemnly advised to measure the weight to
the nearest 0.1kg and the height to the
nearest 0.1cm.
How do you propose to determ
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
Hello Paul Bernal,
(sorry, forgot to CC)
Re:
> Does anyone know about any package for image processing, for example, to
> calculate body mass index pased on a picture, silouette or image.
This sounds more like a job for the image analysis program NIH Image (the
Java-version "ImageJ" being a
Hi Paul,
The paper doesn't seem to mention R and the journal doesn't inspire
confidence, but the formulas provided give you a start:
https://www.researchgate.net/publication/280133090_Calculation_of_Body_Mass_Index_using_Image_Processing_Techniques
Jim
On Mon, Mar 1, 2021 at 3:39 AM Paul Bernal
1) doing a web search on:
"R package to calculate body mass index based on a picture, silhouette or
image"
did *not* bring up any R packages, but did provide what looked like
relevant links to other software and research/discussions. You can decide
whether or not this is useful "guidance" (if you
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