[magick-users] Colour management woes.

[Edward Grace]

Dear All,

I have images which have an embedded ProPhoto RGB profile and I want  
to convert them to an implicit sRGB profile for use one the web with  
browsers that are not colour management aware (e.g. IE and Firefox).

By "implicit" I mean that the individual numbers representing pixel  
RGB components correspond to what we expect in the sRGB profile -  
however there is no embedded profile in the image.

I cannot find a way of doing this at all with ImageMagick, I can  
convert *to* the sRGB colour profile, however this is not what I  
want.  It embeds the colour profile in the image.  If I then strip  
out the colour profile (which is what FF essentially does - it  
"assumes" sRGB) it looks totally wrong.

I'm essentially trying to get things to look "right" between Preview  
(which *is* colour managed and displays the files with profiles  
correctly) and Firefox (which is not colour managed and ignores  
profiles).

I suspect that this is a lost cause as the colour managed case takes  
into account the monitor profile whereas the unmanaged case does  
not.  [*]

Any ideas?

(Using OS X on a Mac.)


-ed

(I'm beginning to see Ken Rockwell's point - http://tinyurl.com/yr9mkt )