Hallo Jonathan!
help.search("jpeg") is R users friend.
#search result.
Help files with alias or concept or title matching 'jpeg' using
regular expression matching:
f.plot.ica.fmri.jpg(AnalyzeFMRI)
Plot the components of the ouput of f.ica.fmri
to a series of jpeg files
bmp(graphics) BMP, JPEG and PNG graphics devices
cat.picture(rimage) JPEG picture of a cat
read.jpeg(rimage) Read JPEG file
Type 'help(FOO, package = PKG)' to inspect entry 'FOO(PKG)
TITLE'.
library(rimage)> ?read.jpeg
This function reads a jpeg image file and return an imagematrix
object.
Sincerely
*********** REPLY SEPARATOR ***********
On 5/27/2004 at 1:21 PM Jonathan Williams wrote:
>Hi Helpers,
>Does anyone know how to read jpeg, bmp or png files into R?
>I have some photos of brain scans and I want to quantify
>some aspects of their size. I might be able to do this
>with the 'locator' function, if I could figure out how
>to read the files in and make them into an image that
>I can display on the R Windows device. I have experimented
>with readBin, using a simple black-and-white line graph,
>but the numeric result appears to be much too complex for
>a simple line graph and I cannot see how to use image or
>contour to re-create the original jpeg image. Is there an
>R routine to do this?
>
>Thanks, in advance, for your help,
>
>Jonathan Williams
>OPTIMA
>Radcliffe Infirmary
>Woodstock Road
>OXFORD OX2 6HE
>Tel +1865 (2)24356
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
Dipl. bio-chem. Eryk Witold Wolski @ MPI-Moleculare Genetic
Ihnestrasse 63-73 14195 Berlin 'v'
tel: 0049-30-83875219 / \
mail: wolski at molgen.mpg.de ---W-W----
http://www.molgen.mpg.de/~wolski
Hi Helpers, Does anyone know how to read jpeg, bmp or png files into R? I have some photos of brain scans and I want to quantify some aspects of their size. I might be able to do this with the 'locator' function, if I could figure out how to read the files in and make them into an image that I can display on the R Windows device. I have experimented with readBin, using a simple black-and-white line graph, but the numeric result appears to be much too complex for a simple line graph and I cannot see how to use image or contour to re-create the original jpeg image. Is there an R routine to do this? Thanks, in advance, for your help, Jonathan Williams OPTIMA Radcliffe Infirmary Woodstock Road OXFORD OX2 6HE Tel +1865 (2)24356
?pixmap in the pixmap library might be of use to you. Rob Baer ----- Original Message ----- From: "Jonathan Williams" <jonathan.williams at pharmacology.oxford.ac.uk> To: "Ethz. Ch" <r-help at stat.math.ethz.ch> Sent: Thursday, May 27, 2004 7:21 AM Subject: [R] Is it possible to read jpeg files into R?> Hi Helpers, > Does anyone know how to read jpeg, bmp or png files into R? > I have some photos of brain scans and I want to quantify > some aspects of their size. I might be able to do this > with the 'locator' function, if I could figure out how > to read the files in and make them into an image that > I can display on the R Windows device. I have experimented > with readBin, using a simple black-and-white line graph, > but the numeric result appears to be much too complex for > a simple line graph and I cannot see how to use image or > contour to re-create the original jpeg image. Is there an > R routine to do this? > > Thanks, in advance, for your help, > > Jonathan Williams > OPTIMA > Radcliffe Infirmary > Woodstock Road > OXFORD OX2 6HE > Tel +1865 (2)24356 > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide!http://www.R-project.org/posting-guide.html>