Defining CMYK color scheme for color actions
Hi, Some journals require usage of CMYK color scheme. I see that the CMYK option exists in the color editor but is it possible to define CMYK for all the color actions (actions --> color) without having to go through the color editor for each color? Or am I missing something altogether? Thanks for you advice, Boaz Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben-Gurion University of the Negev Beer-Sheva 84105 Israel E-mail: bshaanan@bgu.ac.il Phone: 972-8-647-2220 Fax: 972-8-647-2992 or 972-8-646-1710
Hi Boaz, That means that the saved image should use the CMYK color space, not that you have to specify CMYK colors as you create the image. From the Save Image Help/Tips page: Color space <>. Some publications require images to be in the CMYK color space. Chimera currently saves images in only the RGB color space, so a separate application such as Adobe Photoshop® must be used to switch between the two. —Eric Eric Pettersen UCSF Computer Graphics Lab
On Feb 21, 2019, at 3:42 PM, Boaz Shaanan <bshaanan@bgu.ac.il> wrote:
Hi,
Some journals require usage of CMYK color scheme. I see that the CMYK option exists in the color editor but is it possible to define CMYK for all the color actions (actions --> color) without having to go through the color editor for each color? Or am I missing something altogether? Thanks for you advice,
Boaz
Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
E-mail: bshaanan@bgu.ac.il Phone: 972-8-647-2220 Fax: 972-8-647-2992 or 972-8-646-1710
_______________________________________________ Chimera-users mailing list: Chimera-users@cgl.ucsf.edu Manage subscription: http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users
CMYK is just an another way of encoding colors. All of the computer graphics uses RGB colors, even if you specify it with CMYK values. All printers print CMYK images, so the printer software does the conversion if you don't. Most publishers now accept RGB images and do the conversion themselves because they'll need the RGB version for the web. Even if the publisher accepts RGB images, to ensure that your images are suitable for printing, you should print your images and see how the color is different from the screen version. The color gamut of screens and printers overlap, but there are major differences, in particular, screens show much brighter colors. Often, things that are obviously different on the screen, are not as different when printed. Then you can revise the colors if need be. And, almost 9% of the population has some degree of color blindness, so use your colleagues to test your images too. If the publisher really needs a CMYK image, then you should use Adobe Photoshop, or some other image editor, to convert your saved image from RGB to CYMK. To get the printed colors as close to the colors you're seeing, you'll need to associate a color profile with the image. People that really worry about color, calibrate their monitors, and use the profile generated by the calibration tool. In molecular graphics, we are not such people. If you don't have a color profile for your screen, use the sRGB color profile. Next, you need to pay attention to which version of CMYK your publisher wants. US and European publishers have slightly different versions -- if I recall correctly, the European CYMK is better at showing shades of red. If you are printing the image on your own printer, you should use the color profile for your printer instead of one of the standard CMYK ones if you have it. Adobe Photoshop has a way to view the transformed image on your screen, instead of having to print it -- presumably other image editors do too. Bottom line, give the publisher the RGB image and let the publisher sweat the details. Hope this helps, Greg On 2/21/2019 3:42 PM, Boaz Shaanan wrote:
Hi,
Some journals require usage of CMYK color scheme. I see that the CMYK option exists in the color editor but is it possible to define CMYK for all the color actions (actions --> color) without having to go through the color editor for each color? Or am I missing something altogether? Thanks for you advice,
Boaz
Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
E-mail: bshaanan@bgu.ac.il Phone: 972-8-647-2220 Fax: 972-8-647-2992 or 972-8-646-1710
_______________________________________________ Chimera-users mailing list: Chimera-users@cgl.ucsf.edu Manage subscription: http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users
participants (3)
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Boaz Shaanan -
Eric Pettersen -
Greg Couch