Search found 6 matches

by Mike_B
2019-12-28T01:44:45-07:00
Forum: Bugs
Topic: Lab to custom profile (CMYK or RGB) conversion bug
Replies: 6
Views: 3397

Lab to custom profile (CMYK or RGB) conversion bug

I got strange results of conversion in version 7 compared to 6 (tried on windows, macos and linux): convert xc:"lab(112,25,-50)" -set profile Lab-D50-Identity-elle-V2.icc -intent absolute -profile ISOcoated_v2_eci.icc txt: Result on ImageMagick 7.0.9-11: 0,0: (2028,62941,47537,7786) #07ECF5DDB9B11E6...
by Mike_B
2019-12-28T01:28:28-07:00
Forum: Users
Topic: Convert Lab tif to color profile (CMYK or RGB)
Replies: 10
Views: 3301

Re: Convert Lab tif to color profile (CMYK or RGB)

Thank you all for your help! I rollback to version 6 and it solved my problem. convert xc:"lab(112,25,-50)" -set profile Lab-D50-Identity-elle-V2.icc -intent absolute -profile ISOcoated_v2_eci.icc txt: Result on ImageMagick 7.0.9-11: 0,0: (2028,62941,47537,7786) #07ECF5DDB9B11E6A cmyk(3.09453%,96.04...
by Mike_B
2019-12-27T14:50:56-07:00
Forum: Users
Topic: Convert Lab tif to color profile (CMYK or RGB)
Replies: 10
Views: 3301

Re: Convert Lab tif to color profile (CMYK or RGB)

You can do that if you have an appropriate LAB profile. See snibgo's comments above for a link to one and his command. I already tried to use it, the result is unsatisfactory (wrote above). Logically, imagemagick for a color in the lab format should not require a profile. A color profile is needed ...
by Mike_B
2019-12-27T13:14:03-07:00
Forum: Users
Topic: Convert Lab tif to color profile (CMYK or RGB)
Replies: 10
Views: 3301

Re: Convert Lab tif to color profile (CMYK or RGB)

You must put -set colorspace after creating/or reading an image. But it is not needed OK, I will take this into account. convert xc:"lab(112,25,-50)" -colorspace cmyk x.tif Thanks, fmw42, but as I wrote before converting to CMYK just by using '-colorspace cmyk' does not solve my problem... I need c...
by Mike_B
2019-12-27T12:14:24-07:00
Forum: Users
Topic: Convert Lab tif to color profile (CMYK or RGB)
Replies: 10
Views: 3301

Re: Convert Lab tif to color profile (CMYK or RGB)

Snibgo, thank you for your reply! What version of IM, on what platform? I used the latest available version of ImageMagick (7.0.9) and tried on linux, macos and windows with the same result. Let's continue to use the syntax for Windows command line. But your command has no input file. Yes, but I jus...
by Mike_B
2019-12-27T08:36:40-07:00
Forum: Users
Topic: Convert Lab tif to color profile (CMYK or RGB)
Replies: 10
Views: 3301

Convert Lab tif to color profile (CMYK or RGB)

Hi. I am trying to do simple conversion from Lab TIF file to an CMYK TIF file using some custom CMYK icc color profile. But as a result, I got the same TIF in the Lab color space. Please advise what I'm doing wrong: convert -set colorspace lab -size 20x20 xc:lab\(112,25,-50\) -profile ISOcoated_v2_e...