Thanks.

I tried EBImage several years ago for another problem, but Bioconductor packages have some difficulties to install in our network/firewall environment and I am not in a position to change it. It seems to me also an overkill for such simple task.

jpeg and png seems to me a bit too much simple, without direct possibility to transform from rgb to grayscale and normalisation.

Anyway, I will give it a try.

Petr

From: Greg Snow [mailto:538280@gmail.com]
Sent: Friday, February 22, 2013 6:45 AM
To: PIKAL Petr
Cc: r-help
Subject: Re: [R] package ReadImages

Some possibilities:  The EBImage package on Bioconductor; the jpeg and png packages read jpeg and png images.

On Thu, Feb 21, 2013 at 8:26 AM, PIKAL Petr <petr.pikal@precheza.cz<mailto:petr.pikal@precheza.cz>> wrote:
Dear all

I prepared some image processing routine which depended on package ReadImages. Basically I imported image to R, changed rgb to grayscale, normalised an image made some selections and changed to image by imagematrix.

Recently I learned that this package was removed from CRAN and can not be used in R 3.0.0.

What options I have now to import image to R, change it to grayscale, make some computation or selection, change it back to image and plot for visual inspection.

Thanks
Petr

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