wrong CMYK colors

[stiebel]

ImageMagick version

7.1.1-32

Operating system

Linux

Operating system, version and so on

Ubuntu 22.04

Description

convert image.tif -bordercolor 'CMYK(50%,50%,50%,50%)' -border '100x0' image.tif
produces a border with cmyk(0,0,0,242.027)
while
magick image.tif -bordercolor 'CMYK(50%,50%,50%,50%)' -border '100x0' image.tif
produces the right border with cmyk(127.5,127.5,127.5,127.5).
Same results with .mpc in colorspace CMYK

Steps to Reproduce

try the commands.
convert image.tif -bordercolor 'CMYK(50%,50%,50%,50%)' -border '100x0' image.tif
magick image.tif -bordercolor 'CMYK(50%,50%,50%,50%)' -border '100x0' image.tif

By the way : thanks a lot for this great program !!!

Images

No response

[fmw42]

Please post your input TIFF. Are you doing convert in IM 7 or in IM 6? You should not be using convert in IM 7, but magick. If you want convert on IM 7, use magick convert. Does that work?