Displaying 20 results from an estimated 40000 matches similar to: "Read and show Bitmap Images"
2006 Dec 28
3
importing bitmap images to R
All -
I'm creating some plots in R that I would like to overlay on images that
are created outside of R.
I've used "image" before to plot image-like data within R, and have added
vector plots on top of them, but I can't find a way to read in an external
bitmap file into R and use that.
Currently the external files are .png's, but I could generate a few other
types,
2011 Jun 13
3
plotting on an image
Hello all,
has someone please a few hints about how to
1.st: draw an image (preferrably a jpg) and then
2nd: plot() on that image
I am using a mac - and after searching and trying different ways (I have installed EBImage) I now would like to ask for help...
Thanks!
Johann
2011 Nov 23
1
REad bitmap files
Dear all,
I am looking for a function that can read a simple bmp file and return me a matrix with their corresponding values.
I have already looked in the packages
require(ReadImages)
require(pixmap)
and also did apropos("image")
but I could not find something that can do something like that.
I have also tried the read.ftable but it also failed.
B.R
Alex
[[alternative HTML
2011 Dec 06
1
Read Windows BMP format images
Hello,
Does anyone know of an R package that can read Windows BMP format images? Many thanks,
Greg Jefferis.
--
Gregory Jefferis, PhD
Division of Neurobiology
MRC Laboratory of Molecular Biology,
Hills Road,
Cambridge, CB2 0QH, UK.
http://www2.mrc-lmb.cam.ac.uk/group-leaders/h-to-m/g-jefferis
2010 Oct 18
1
Incorrect positioning of raster images on Windows
I am working on dumping raster data from R into PNG files using
rasterImage(). I am working with a test matrix from the rasterImage()
example and using it to produce a PNG image with the following code:
# From the example for rasterImage(). A 3 pixel by 5 pixel b/w checkerboard.
testImage <- as.raster(0:1, nrow=3, ncol=5)
testImage
[,1] [,2] [,3] [,4] [,5]
[1,]
2010 Oct 18
1
Incorrect positioning of raster images on Windows
I am working on dumping raster data from R into PNG files using
rasterImage(). I am working with a test matrix from the rasterImage()
example and using it to produce a PNG image with the following code:
# From the example for rasterImage(). A 3 pixel by 5 pixel b/w checkerboard.
testImage <- as.raster(0:1, nrow=3, ncol=5)
testImage
[,1] [,2] [,3] [,4] [,5]
[1,]
2009 Dec 08
2
automated image processing
Hi,
I am looking for a R package which is capable to process and analysis pictures of tissues (stained) in an automatic way.
I had a look on biops and EBImage (Bioconductor) but they are not automatic...
Did you already use/know a such package ?
Thanks,
- Martial
_________________________________________________________________
Tchattez en direct en en vidéo avec vos amis !
2007 Jan 12
7
Making TIFF images with rtiff
Many medical journals and publishers require that images, whether
photographs or line art, be submitted as high resolution .TIFF images.
One option for R users is to produce an image in one format and to
convert it to a .TIFF file using a second software program. My
experience has been that this option often results in images of poorer
quality, often with blurry contours, and a loss of
2010 Apr 15
1
Poblems wih EBImage
Hello, Working with Windows 7 in a HP laptop with R-2.10.1
I download and installed ImageMagick-6.3.7.7-Q16-Windows-dll.exe and GTK 2.12.9-win32-2, then downloaded and installed from local file EBImage_3.2.0.zip and I got:
> library(EBImage)
Loading required package: abind
Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared library
2010 Mar 08
2
black cluster in salt and pepper image
Hi,
on a lattice, I have binary 0/1 data. 1s are rare and may form clusters.
I would like
to know the size/length of largest cluster. Any help warmly welcome,
Sylvain.
2009 Jun 24
1
bwimage
Dear Sir/Madam,
I am using R-Image in an MSc statistics dissertation and have found, in various EBImage manuals a functions - bwimage, which I would like to use, however I can't find it within my version of R.
Could you tell me if the function has changed or what I need to do to be able to use it.
Many thanks
Alice
[[alternative HTML version deleted]]
2007 Jan 26
3
"[" operator and indexing ambiguity
Hi,
I am working on writing some S4 classes that represent
multidimensional (brain) image data. I would like these classes to
support standard array indexing. I have been studying the Matrix and
EBImage (http://www.bioconductor.org/packages/1.9/bioc/html/EBImage.html)
packages to see how this is done.
When using objects of the "array" class directly, R distinguishes
between the calls:
2010 Dec 15
2
ebimage problems
Hello, I've been having some trouble working with the aroma package and have
realized that it's my ebimage is at the root of the problem. The package
builds but during testing it fails because of an undefined symbol as seen
below:
installing to /usr/local/lib64/R/library/EBImage/libs
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
**
2009 Jun 24
1
I meant bwlabel
Sorry I meant bwlabel on this message
Alice
--- On Wed, 24/6/09, aliceduggan@btopenworld.com <aliceduggan@btopenworld.com> wrote:
From: aliceduggan@btopenworld.com <aliceduggan@btopenworld.com>
Subject: bwimage
To: r-help@r-project.org
Date: Wednesday, 24 June, 2009, 12:34 PM
Dear Sir/Madam,
I am using R-Image in an MSc statistics dissertation and have found, in various
2011 Nov 24
1
readGDAL or raster for reading bit map files
Dear all,
I have asked yesterday of how I can read a simple bitmap file in R cran.
I was suggest to use either readGDAL or raster for loading my bitmap
a. I have done it with readGDAL like
store<-readGDAL(fname='lena256.bmp')
and it works,... but it converts my matrix-like notion of a bitmap to a large vector
b. Raster also returns a class that I can not understand.
So 1,
2007 Sep 20
1
Sweave vignettes and bitmap on windows
During vignette generation on Windows, Sweave seems to clean up before
all graphics files are completely processed. For instance, if tmp.Rnw
is:
\documentclass[12pt]{article}
\begin{document}
<<>>=
bitmap("afile.png")
plot(1:100)
dev.off()
@
\end{document}
Then:
C:\R\tmp>R CMD Sweave tmp.Rnw
Writing to file tmp.tex
Processing code chunks ...
1 : echo term verbatim
2010 Apr 10
1
Unable to load EBImage
Hi group,
I've spent half a day trying to figure this out and searched through
different forums. I've tried to load EBImage but am getting the following
problem:
>Error in inDL(x, as.logical(local), as.logical(now), ...) :
> cannot initialize ImageMagick
>Error: package/namespace load failed for 'EBImage'
My path is like this:
C:\\Program
2012 Jun 20
1
Question on EBImage package
I am having trouble using the "resize" function (in the package EBImage) with matrices containing double values. Let's say I have a matrix 'b' with these values:
> a = c(1.25,1.555,1.245,1.265,1.656,1.235,1.848,1.959,1.548,1.245454,1.989,1.24)
> b = matrix(a,4,3)
> b
[,1] [,2] [,3]
[1,] 1.250 1.656 1.548000
[2,] 1.555 1.235 1.245454
[3,] 1.245 1.848
2003 May 06
4
bitmap images in tcltk
Dear R-help list members,
I'm writing a package using tcltk. Thanks to Peter Dalgaard's excellent
work on the tcltk package, almost everything has gone very smoothly. I'm
stymied, however, by the following problem:
I want to incorporate a bitmap image, stored as an xbm file, in a widget.
To take a simple example,
top <- tktoplevel()
tkgrid(tklabel(top,
2007 Jul 23
2
R2.6 bug in arithmetics of S4 classes inherited from 'array', or intended behavior?
Hi,
I have an S4 class directly derived from 'array' as shown in the code
below (EBImage package of Bioconductor 2.1, devel), it simply contains
array adding a couple of slots:
setClass ("Image",
representation (colormode="integer", filename="character",
compression="character", resolution="numeric", features="list"
),