R help - Oct 2007 - Image analysis and image questions

Dear R users,

in my application i can transfer images to R with the help of Rserve. The
images come from
a java application. When i plot a greyscale image (values 0-255) with images
(imageMatrix...as grey)
the image is created with inverse colours. My first question is how can i
plot the image with
the default grey values. In the application the greys are (ImageJ):
white=0,black=255.

I would be also interested in operations on images inside R to test some
image functionality.
So which packages exist to do some image operations and how can i create and
plot images with them (with available data structures like a list or a
matrix)?

Another point is the creation of coloured images inside R. How could i
create and plot coloured images inside R and which data structure do i need?

In addition to this question for coloured images -> are there any bit
arithmetics available to seperate the colour space or do i have to transfer
the rgb values seperately?

Any help is appreciated

With kind regards

Marcel
-- 
View this message in context:
http://www.nabble.com/Image-analysis-and-image-questions-tf4611810.html#a13170210
Sent from the R help mailing list archive at Nabble.com.

See the EBImage package on Bioconductor.org.  It builds on top of
ImageMagick.  /Henrik

On 10/12/07, Bio7 <marcel.austenfeld at uni-bielefeld.de>
wrote:
>
> Dear R users,
>
> in my application i can transfer images to R with the help of Rserve. The
> images come from
> a java application. When i plot a greyscale image (values 0-255) with
images
> (imageMatrix...as grey)
> the image is created with inverse colours. My first question is how can i
> plot the image with
> the default grey values. In the application the greys are (ImageJ):
> white=0,black=255.
>
> I would be also interested in operations on images inside R to test some
> image functionality.
> So which packages exist to do some image operations and how can i create
and
> plot images with them (with available data structures like a list or a
> matrix)?
>
> Another point is the creation of coloured images inside R. How could i
> create and plot coloured images inside R and which data structure do i
need?
>
> In addition to this question for coloured images -> are there any bit
> arithmetics available to seperate the colour space or do i have to transfer
> the rgb values seperately?
>
> Any help is appreciated
>
> With kind regards
>
> Marcel
> --
> View this message in context:
http://www.nabble.com/Image-analysis-and-image-questions-tf4611810.html#a13170210
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>