R help - Apr 2014 - solicit help to read in 384 plate color image

Hi,

I am doing an experiment which results different colors of different
intensities in the 384 micro titer plate.

I took a picture of the plate by scanning in the image as a jpeg file and
now I want to

1. read in the image file
2. grid the content
3. need to extract the intensity and color of each well.

Is there a R package I can use for that? there is a package called
"gitter"
which is almost satisfying my needs. However, it can only read in grey
values and no colors.

If someone has the code, please share.

-- 

Thanks.

waverley

	[[alternative HTML version deleted]]

Hi

There was package rimage which could read jpeg file in colours and manipulate
with it. However it is not actively maintained and therefore it does not work in
recent versions of R. I believe that R 2.14.0 is the last version able to use
rimage. It was quite simple and I was tempted to start its maintenance but I do
not use it often and so my interest ceased. If you wanted to try it you need to
install this old version, install rimage. After that you can read your images in
this old version, preprocess it with rimage and save result for use in new R
version.

Regards
Petr

PS. If you do not find rimage in CRAN I can send you a zip file.


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Waverley @ Palo Alto
> Sent: Friday, April 04, 2014 10:28 PM
> To: r-help
> Subject: [R] solicit help to read in 384 plate color image
>
> Hi,
>
> I am doing an experiment which results different colors of different
> intensities in the 384 micro titer plate.
>
> I took a picture of the plate by scanning in the image as a jpeg file
> and now I want to
>
> 1. read in the image file
> 2. grid the content
> 3. need to extract the intensity and color of each well.
>
> Is there a R package I can use for that? there is a package called
> "gitter"
> which is almost satisfying my needs. However, it can only read in grey
> values and no colors.
>
> If someone has the code, please share.
>
> --
>
> Thanks.
>
> waverley
>
>       [[alternative HTML version deleted]]
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-
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> and provide commented, minimal, self-contained, reproducible code.
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