Re: [R] Making TIFF images with rtiff

From: Stephen D. Weigand <weigand.stephen_at_charter.net>
Date: Fri 12 Jan 2007 - 04:25:04 GMT

Brant,

On Jan 11, 2007, at 9:33 PM, Inman, Brant A. M.D. wrote:

> 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 resolution. A
> second
> and better option would be to make .TIFF files directly from the
> graphic
> output of R.
>

[...]

Have you tried bitmap()?. You might need to install ghostscript before it works on your system but the results are super.

I use

bitmap(blah, type = "png256", res = 1200)

to make *.png files which are small and can be inserted in to an MS Word manuscript for review.

When a TIFF is needed by the journal,

bitmap(blah, type = "tifflzw", res = 1200)

will do the trick. (If a color plot is being created, you can use something like type = "tiff24nc". The color files are huge but can be zipped to something reasonable.)

Hope this helps,

Stephen
Rochester, Minnesota, USA



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