search for: cmyk

...requirements to prepare my files for my printers. I am printing in 2/2 format, which means cyan and black for me, which they take from my color-separated pdf files. R comes into play, because it produces all the figures that are embedded in my book (pdflatex). now, TeX has no problems producing CMYK files. However, R produces RGB files (for Cairo-device pdf files). The problem is that cyan in R's RGB is (0,255,255), and unfortunately when this is converted into CMYK, and from then into color-separated plates (using adobe acrobat), it maps not into 100% cyan, but into much [but not full]...

Please do study the FAQ and posting guide: R 2.7.0 is not the current sources, and this was changed a month ago in R-devel. You were asked to check for such changes before submitting a report. Also, there is no unique way to do undercover removal in conversion to CMYK, and so it is wrong to call any method 'wrong' -- in fact the one used in earlier versions of R was a documented method and within the family described in the PDF reference manual. On Fri, 23 May 2008, m1jjh00 at frb.gov wrote: > The conversion of RGB to CMYK takes place in PostScrip...

The conversion of RGB to CMYK takes place in PostScriptSetCol() starting at line 2900 of R-2.7.0/src/library/grDevices/src/devPS.c if(strcmp(mm, "cmyk") == 0) { double c = 1.0-r, m=1.0-g, y=1.0-b, k=c; k = fmin2(k, m); k = fmin2(k, y); if(k == 1.0) c = m = y = 0.0; else {c /= (1.-k); m /= (1...

Hi We are about to publish a book, which contains figures made with R plots. An important detail that we did not take into account is that the book will not be printed in 4 colors (cmyk mode), but only 2 (black +"spotcolor"). The spotcolor we use is part of the big Pantone family. The problem is that both pdf() and postscript() offer either rgb or cmyk, but no spotcolors such as pantone. I'm afraid this constraint can't be solved at all, and we can't use...

Dear Erich and John, thankyou for providing RColorBrewer! Are you working on options for CMYK or RGB return values? Thanks again, Darren [[alternative HTML version deleted]]

...n article to is asking for the following: To ensure the best reproduction quality of your figures we would appreciate high resolution files. All figures should preferably be in TIFF or EPS format... and should have the following resolution: Graph: 800 - 1200 DPI Photo: 400 - 800 DPI Color (only CMYK): 300 - 400 DPI (DPI = dots per inch) Since I am sending a graph, I am trying to save it using tiff. Here is the code I am using: tiff(filename = "c:\\aaa.tiff", res = 800, pointsize = 2) plot(1:100) dev.off() But sadly, it produces a very "bulky" image (and if I whe...

As part of my GSoC project I have to work out a spec that covers how applications should communicate color management related properties between each other and the compositing manager. The main idea of the project is to let the compositing manager do the color management on behalf of the applications. But before that can happen, the applications have to tell the compositing manager how they want

...ure cited below and available at http://geography.uoregon.edu/datagraphics/EOS/ points out that rainbow color schemes and mixtures of green and yellow can be troublesome for people with color-deficient vision. The authors propose alternative schemes that can be viewed and downloaded in RGB, HSV, CMYK, and RGB256 formats from http://geography.uoregon.edu/datagraphics/color_scales.htm. I have translated their RGB definitions into the hex color names given below. Ironically, their article appeared on the same page of one that used a rainbow color pattern to show climate patterns. I'm not co...

...lf might not be a problem if the values obtained in R, times 255 would show the values obtained in ArcGIS, but this is not the case. The images are very different. I tried to settle matters using Photoshop, and the values there are completely different from the other two (using RGB, the K value (in CMYK) or the B value (in HSB))!!! Can somebody help me with this problem? Can I trust "rtiff"? Should I stick to a very slow process in ArcGIS? Why PS, which should be the perfect measuring stick, is showing another set of values? Thanks in advance. Regards. Julio

hi! I would like to produce simple black and white postscript figures for publishing. A black/white or grayscale or CMYK colormodel can be used, but not RGB colours. Can I produce postscript graphs in R that satisfy this? Following an earlier advice on the help-list I have tried using Photoshop to convert - but this seems to convert the vector format into raster format - giving larger, but less precise figures....

Hi all, I am currently using the code snippet below to minimize a function which I wasn't able to minimize properly with optim (cliffy surface, constraints, poles). Obviously this iteration is probably the poorest way of implementing such a function and it is expectedly slow. I've already written some vectorized functions, but I'm afraid that I'm missing the "big

...ot;/path/to/images/logo.jpg" is firing "JPEG marker not found!" Originally created the RGB (8 bit) JPEG in photoshop. After the above, I''ve exported with an alternate tool using (OSX) preview. This tutorial http://www.artima.com/rubycs/articles/pdf_writer2.html says that CMYK or RGB encoding is needed - so that''s not the problem. Other than that requirement, are there others? Optionally I tried PNG, but this resulted in a nil.unpack error (''The error occured while evaluating nil.unpack'') I''ve now run out of file types. harumph! S...

...have HTML to PDF Converter. Infact it is a PDF writer itself not a converter.. I''ve HTML pages with rich css or Strings with html+css such that they are converted to PDF. The idea is that web is all about RGB color model and when it comes to Digital Printing its all CMYK color model. My html page with rich css in it should be converted to PDF document and all the RGB colors in my html and css should be converted to CMYK color model in the output pdf document. Please suggest me any softwares/libraries/servers/tools that does this... Even Proprietar...

...expected behavior of mfrow and layout? Paul -------------------------------- My code is as follows (ToruosityPlot and DiameterPlot are essentially identical to LDRPlot). layout(matrix(1:3, ncol=1)) #par(mfrow=c(3,1)) pdf("results.pdf", width=4, height=3, pointsize=4, colormodel="cmyk", onefile=TRUE) TortuosityPlot(left, right) DiameterPlot(left, right) LDRPlot(left, right) dev.off() LDRPlot <- function(left, right) { plot(left$x, left$LDR, bty="n", ann=FALSE, xlim=c(-1500, 1000), ylim=c(1.0, 1.5)) abline(v=0, col=gray(.90)) lines(left$x, left$...

The Wine development release 1.3.3 is now available. What's new in this release (see below for details): - Improved support for right-to-left text. - Support for CMYK JPEG images. - Beginnings of a Game Explorer implementation. - Improved 64-bit support in MSI. - Stub inetcpl control panel applet. - A number of fixes to crypto support. - Translation updates. - Various bug fixes. The source is available from the following locations: http://ibiblio...

...d). Furthermore, it also causes problems when opening the pdf files for editing in other programs. I know that for reproducibility one should avoid doing this but there are cases where R is simply not suited to produce the end result graphic directly using code (Ex: replace some colors by CMYK versions for color consistency in print). In addition, publishers also often like being able to retouch graphics to ensure fonts consistency or such, and this will be destructive in the case of these pdfs. For example, Inkscape interprets points as squares (more like U+2751 in ZapfDingbats)...

I sent a little mail some time ago asking if there was going to be an ogg pic-format, and you replied that PNG, MNG and JNG is good enough (sorry for this late answer btw).. But, consider this: The ogg video-format (tarkin ? where do you get these names from anyway ? :) ) needs a way to compress its frames. Are you going to use MNG for that ? :) .. If you had an ogg pic format, that format could

Hi all: Since our designer friend Tuomas Kuosmanen (tigert) already did the hard work of specifying the CentOS logo colors in HEX, Pantone, and CMYK ... I did the small step of adding them to the wiki. This might be useful for you all to know it's now there: https://wiki.centos.org/ArtWork/Brand/Logo#logo-colors Also, I put a link back to the trademark guidelines for questions that are beyond the scope of the graphical usage guidelines:...

Hi all, is there a way to automatically convert uploaded images to an RGB colorspace? I have a small intranet app, in which people can upload images. Sometimes a large 300dpi CMYK image intended for print sneaks in and causes trouble... Many thanks in advance, Nicky

I've just moved over to Cups printing system and installed the 20010824 version of wine (with cops support) after removing a June 2001 version. Everything seem to work and Wine does recognize the printers on my system but when I print a document from Lotus Notes (5.05) nothing comes out of the printer. The print dialog box opens and and I can get a print preview but nothing actually