Legacy ImageMagick Discussions Archive

but we are doing CMYK file without profile, add profile convert to sRGB add profile then finally to the printer ..
The difference is the print is lighter with less black, perhaps cuase im using black_scaled_icc ?

printing it ourselves, but a fairly high spec workgroup canon printer..

thanks fred .. any reason an icc profile to icc profile print job would be any different ?

good question ! i did ask myself this , although the image is perfect on screen and in PSHOP, when printed its washed out the blacks have disappeared ... this is from our original CMYK PSD converted to profile swop and converted again to the sRGB.icc.. if we print the original its blacker ... is ...

so to summise, a CMYK png is a no no for Print purposes? Or is a cmyk png not possible for display purposes ?, a CMYK jpeg is a no no for display purposes, a CMYK gif ? not sure why anyone would bother a CMYK bitmap ? and of course a CMYK tiff which is fine ... Is there any way in a script to enable ...

hello Fred, Thanks for your help over this past few weeks, its been eye opening ! just wanted to report back with some findings .... Our untagged CMYK PSD files when being converted to RGB were being very very bright and not even close to the original PSD, we proved this by pushing a PSD into IM for ...

Thanks Fred, our files are fully built layered PS files not files created from a jpg... and yes i agree PS will try to color manage for you ... now if that means getting a 'warning' from pshop saying hey do you want to convert this to a profile or NOT COLOR MANAGE then yeah if you click DONT COLOR ...

infile="zelda3srgb.psd" colorspace=`convert $infile -format "%[colorspace]" info:` if [ "$colorspace" = "sRGB" ]; then convert $infile -resize 200% -profile /Users/fred/images/profiles/sRGB.icc test1.png elif [ "$colorspace" = "CMYK" ]; then convert $infile -profile /Users/fred/images/profiles ...

Thanks fred, i opened up both PSD files in photoshop and you can immediately see the difference even though the file is very small (would this not be the same after conversion ? ie cmyk to rgb... Photoshop shows the files as 'untagged' which is correct to my workflow ( thats what i refer to as not ...

Ace, thanks for posting these, im still unsure how to implement your script on linux but should i test these files with the current setup ?

i guess frank that was why i jumped onto that other thread that was trying to achieve a similar thing take either cmyk or rgb and convert to one correctly... regarding -colorspace i found adding this to any of the commands made the color terrible ( if you add -colorspace RGB to cmyk its bad and vice ...

If its color correct im not fussed i thought it might be possible to hold whatever is given to IM but it appears this isnt the case...

i dont do anything with RGB PSD thats my issue, i can only get one or the other to work correctly using -profile cmyk.icc or alternatively -profile sRGB.icc Im trying to get IM to take either cmyk.psd or rgb.psd (flattened) and process them correctly ( im not fussed on conversion if anything id like ...

Agreed, sorry for the double up : Just for clarity ill post your last response here and answer ...

Platform Ubuntu 12.04 LTS server (linux 3.2.0-48-generic server) IM : 6.6.9 Im happy to convert the cmyk PSD to sRGB but as i say were providing non profile cmyk psd and if we add a -profile cmyk.icc and then another -profile sRGB.icc what happens when an RGB.PSD is sent ( no profile) does it double ...