Re: Color in Microsoft Word (2008 Mac edition)
Re: Color in Microsoft Word (2008 Mac edition)
- Subject: Re: Color in Microsoft Word (2008 Mac edition)
- From: Marco Ugolini <email@hidden>
- Date: Thu, 04 Feb 2010 10:54:36 -0800
- Thread-topic: Color in Microsoft Word (2008 Mac edition)
In a message dated 2/4/10 2:01 AM, Matthew Ward wrote:
>
> On 4 Feb 2010, at 05:05, Marco Ugolini wrote:
>>
>> Using sRGB for images has been the standard workaround for PowerPoint
>> (another color-clueless Microsoft application), and it seems to work
>> OK.
>
> If you import an sRGB tagged image and a Pro Photo tagged image into
> Word (on a Mac) you get the same image on screen.
> Therefore Word is recognising the profile and honoring it (in some way
> - or at least allowing the OS to).
My test shows that not to be true at all:
<http://tinyurl.com/ybwflpx>
As you can see, the sRGB image file (inserted on pages 1 and 2 of the PDF I
created from Word) looks quite different inside the Word document from the
ProPhoto RGB image file (on pages 5 and 6).
Of course, each of my images was CONVERTED first inside Photoshop to the
chosen target profile (except for the sRGB image, which was my starting
point, and was thus not converted). A conversion preserves the APPEARANCE of
the source image by while CHANGING its RGB numbers to the appropriate ones
in the destination profile.
This is what I think is going on in your procedure, and why you achieve the
results you do:
If you just take 2 copies of the exact same image (bit copies of one
another, containing the same exact RGB numbers at all locations in the
raster grid), tag them with 2 different RGB profiles (sRGB and ProPhoto RGB,
in this instance), embed the profiles, then insert the image files into MS
Word, they will look alike: that's because Word always IGNORES the embedded
profiles completely, and instead just exclusively uses the RGB numbers
inside the image files (which we already know to be the same). Those RGB
numbers are then viewed in Word through the active monitor profile (a
default behavior, since Word is not color-managing them in any way).
So, the 2 image files look the same as one another inside Word because they
contain exactly the same RGB numbers, not because the embedded profiles are
being honored. Actually, if those profiles were honored, those 2 images
would look VERY different from one another, as they would in Photoshop.
It's a misconception to confuse CONVERTING TO a profile with ASSIGNING a
profile, and one should always be very aware of the distinction.
> If you remove the Prophoto profile and import it, the image changes,
> confirming this.
Look at pages 1 vs 2, or 5 vs 6, in my PDF, and you'll see that it's not the
case at all. Embedded profile or not, the image will look the same inside
Word.
I'll be convinced of your point once I can replicate your claimed results
independently on my end, but you will have to provide exact details of your
procedure's steps. Until then, I remain not at all convinced.
> This behavior is also exhibited in Powerpoint.
> How would you expect it to behave?
You mean, a color-savvy application like Microsoft Word? I expect it to
behave cluelessly, and, as far as I know, it does exactly that.
Marco Ugolini
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