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for some reason one of my 16 bit tif pix cannot be reduced to 8 bits!
the 8 bit option is greyed out. i tried converting it to a psd but the
8 bit option was still greyed out. any suggestions how to get the 8
bit option back?

tia

steve

(E-Mail Removed) wrote:

> for some reason one of my 16 bit tif pix cannot be reduced to 8 bits!
> the 8 bit option is greyed out. i tried converting it to a psd but the
> 8 bit option was still greyed out. any suggestions how to get the 8
> bit option back?
>
> tia

I don't know what you are looking at, but if you want 8-bit then just save
to JPG then you have no other option but 8-bit

> steve

unfortunately saving to 8 bits is not an option for any file that is
16 bits in photoshop cs4

steve

On Sat, 06 Jun 2009 20:06:29 -0500, Joel <(E-Mail Removed)> wrote:

>(E-Mail Removed) wrote:
>
>> for some reason one of my 16 bit tif pix cannot be reduced to 8 bits!
>> the 8 bit option is greyed out. i tried converting it to a psd but the
>> 8 bit option was still greyed out. any suggestions how to get the 8
>> bit option back?
>>
>> tia
>
> I don't know what you are looking at, but if you want 8-bit then just save
>to JPG then you have no other option but 8-bit
>
>> steve

fabulous idea ... but ..."not enough scratch memory" ... and i have a
scratch memory only 160 gig hard drive! the image is only 350 megs or
so ... strange ...

but nice idea :-) ...

steve

On Sun, 7 Jun 2009 13:21:36 +0200, "Fred" <(E-Mail Removed)> wrote:

>> unfortunately saving to 8 bits is not an option for any file that is
>> 16 bits in photoshop cs4
>>
>
>Try File>Save for web & devices, select JPG and the compression you want
>Strange though!

yep ... one can see the /16 in the top of the image

steve

On Sun, 7 Jun 2009 05:12:58 -0700, "botox" <(E-Mail Removed)>
wrote:

>Have you checked the mode: are you sure this is a 16 bit RGB image?

according cs4 it is in rgb mode ...i can send a screen shot
documenting this ...

steve

On Tue, 9 Jun 2009 10:26:18 -0700, Mike Russell
<(E-Mail Removed)> wrote:

>On Sat, 06 Jun 2009 16:49:48 -0700, (E-Mail Removed) wrote:
>
>> for some reason one of my 16 bit tif pix cannot be reduced to 8 bits!
>> the 8 bit option is greyed out. i tried converting it to a psd but the
>> 8 bit option was still greyed out. any suggestions how to get the 8
>> bit option back?
>
>This actually might be related to the color mode. I can recreate this
>behavior if I convert a 16 bit image to multichannel mode. 8 bits is
>greyed out, and it is not possible to select 8 bit mode until I convert to
>another mode such as Lab, RGB, or CMYK.

shangara was kind enough to post a work around ...i created an 8 bit
blank image of the same dimensions ...copied the 16 bit into it, ok'ed
the conversion to 8 bits and it was a done deal ...

but ...i still wonder why the conversion of the original image was
greyed out ...oh well ...

steve

On Tue, 9 Jun 2009 15:46:58 -0700, Mike Russell
<(E-Mail Removed)> wrote:

>On Tue, 9 Jun 2009 18:01:38 -0400, Kabuki wrote:
>
>> well I was only guessing but
>> seems I was not far from the solution
>> of course the usuals chimed in to tell me I was wrong
>
>NO good deed goes unpunished, LOL.
>OTOH, we may both be wrong...

(E-Mail Removed) wrote:
> shangara was kind enough to post a work around ...i created an 8 bit
> blank image of the same dimensions ...copied the 16 bit into it, ok'ed
> the conversion to 8 bits and it was a done deal ...
>
> but ...i still wonder why the conversion of the original image was
> greyed out ...oh well ...
>
> steve
>
> On Tue, 9 Jun 2009 15:46:58 -0700, Mike Russell
> <(E-Mail Removed)> wrote:
>
>> On Tue, 9 Jun 2009 18:01:38 -0400, Kabuki wrote:
>>
>>> well I was only guessing but
>>> seems I was not far from the solution
>>> of course the usuals chimed in to tell me I was wrong
>> NO good deed goes unpunished, LOL.
>> OTOH, we may both be wrong...

If that worked then try a "save as" of your tiff file close and reopen
it and see what happens.

In the past I have had problems with tiff files that were not correctly
recognised in PShop 7.0? They were scanned slide images from the Nikon
film scanner.

the problem with that image is that it is about 400 megs :-) ... and
.... as it is 16 bits i can't reduce it to a jpg :-) ...

but shangara's suggestion to copy it to a same size 8 bit image worked
.... strange ...

steve

On Tue, 9 Jun 2009 23:49:28 -0700, Mike Russell
<(E-Mail Removed)> wrote:

>On Tue, 09 Jun 2009 21:43:02 -0700, (E-Mail Removed) wrote:
>
>> according cs4 it is in rgb mode ...i can send a screen shot
>> documenting this ...
>
>Curiouser and curiouser. If you can get the size down to a few megs or so,
>email me a copy - mike at curvemeister.com and I'll take a look.