RE: filmscanners: How Not Embedding Color Space in Web Graphics

["Oostrom, Jerry" <Jerry.Oostrom@Alcatel.nl>]

WOW!

I reported my problem to www.dl-c.com and they've already sent me a patch.
It's almost like Ed's Vuescan! This is the third time they were able to send
me a patch within two days of reporting a bug in a few weeks stretch. 
BTW. All bug reports of mine had to do with slideshow stuff.

shAf, if you would like to see how they handle profiles: they have a 30day
trial version of PWP3.0. I have no idea whether that version contains the
newest bugsolves, but color profile handling is included. I don't know what
you mean with the differences in color profile handling between PS 4.0 and
PS5.0 and up and how that would relate to PWP3.0, so perhaps you can try the
trial version and find out if PWP3.0 color management is morelike PS4.0 or
PS5.0 and up (to 5.5).

Anyway, the bug report on removing an embedded profile was unclear to the
people at dl-c, so I have to try and reproduce the problem and send them
examples.

I did have PS5.5 (for two months) but illegally, because I wanted to try
wysiwyg printer profiling. Howewer, I never really liked having this stuff
illegally, so I used my legal copy of PSlight, but that didn't do color
management, so I bought PWP3.0. This package was affordable unlike PS5 and
had the features that I needed. Pictures always looked the same in both
PS5.5 and PWP3.0, regardless of embedded image profile. Of course I used the
same monitor profile for display in both programs. 
PWP3.0 lets me do my usual edits: crop, warp (against cheap wide angle lens
distortion), color balance, unsharp masking, cloning, etc. all in 48 bit
mode and it is fast. It is also supposed to have chromatic aberration
removal, vignetting removal and such stuff. So I am glad to have something
legally which does a lot of the important edits in 48 bit mode that PS5.5
does in 48 or just 24 bit mode and PS5.0light does in only 24bit mode.

Here are some parts of the mail replies from dl-c which made me rave about
them much the same way this list does about Ed's listening ear and quick
updates.

##########################################
mail 1:

From: 
         "Jonathan Sachs" <jsachs@dl-c.com> Save Address - Block Sender
 Reply-To: 
         <jsachs@dl-c.com>
 To: 
         "Jerry & Fiona Oostrom" <jerfi51@hotmail.com> Save Address
 Subject: 
         RE: A new problem with Picture Window 3.0
 Date: 
         Wed, 31 Jan 2001 06:31:30 -0500

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>> 1. I have trouble converting a file from being coded in color space
ProPhotoRGB to color space none. (I also have trouble batch converting files
with certain profiles embedded to my specified profile)

What kind of trouble are you having? Can you email me a copy of the
ProPhotoRGB profile?


>> 2. It seems that the slide show images have no color space embedded. This
is
OK as long as the original images used as source for the slideshow would
first be converted to have 'no' color space or color space sRGB. As it is
now, I have to do it manually (i.e. convert to sRGB) if I don't want to end
up with color biased desaturated pictures in the slide show. This part
relates to what is in my opinion a bug: the slide show creation 'module'
does not take into account the original color space in which the file is
coded and you end up with 'different' images.
What I would actually like is to have an option in which the slides would
have a color space that I can specify when creating the slide show. I should
also be able to specify color space 'none', which should return the color
info to a file with color space none or if that is logically not possible (I
am no ICM wizard) to color space sRGB but without the color space
specification embedded.
The thumbnails should also take into account the color space of the
originals, but should themselves have no color space info embedded.

Your points about the slide show are well taken -- I will try to clean this
up.

Jonathan Sachs
Digital Light & Color

#########################################
mail 2 from dl-c
:
I am attaching a preliminary version of PW 3.0d which add the following
feature:

In PW Pro, when opening images for use in a slide show, if they have an
embedded profile, they are converted to the current working color space for
inclusion in the slide show. This change should be reflected in both the
thumbnails and the final images.

To install the new version, just extract the file pw30.exe from the attached
pw30.zip and copy it over the file of the same name in the folder in which
you installed PW Pro 3.0.

Please let me know if this works for you or if you encounter any problems
with the new version.

Jonathan Sachs
Digital Light & Color



> -----Original Message-----
> From: shAf
> Sent: Wednesday, January 31, 2001 4:59 PM
> To:   filmscanners@halftone.co.uk
> Subject:      RE: filmscanners: How Not Embedding Color Space in Web
> Graphics
> 
> 
> Jerry writes ...
> 
> > Sorry, but I do not have Photoshop.
> > (Yeah yeah, now you feel sorry for me!)
> 
>       But it "handles profiles?  It would be interesting to know how it
> behaves with respect to Photoshop, but probably difficult to describe
> if you're not familiar with PS.
[]