If you only do a few things, with no repetition, there is no
difference. With layers you can go back and redo an adjustment layer,
always working from original data. If not, once you make an adjustment,
the truncation error can accumulate. However, if you do the exact same
set of adjustments in the same order, with or without layers, it may
not matter. I'm not sure if photoshop's compute engine works with
32 bit integers and truncates back to 8 bit between each layer
application, or at the end?
Wayne.
At 12:40 PM 8/7/2004, you wrote:
>I have never read that before and I don't understand why it would. Can
>you tell me where you picked that up?
>
>
>Winsor
>Long Beach, CA
>USA
>On Aug 7, 2004, at 8:32 AM, W Shumaker wrote:
>
>> One of the advantages of using layers, especially with 8-bit color, is
>> that in effect you are reducing the truncation error that would occur
>> if you did it directly on the 8-bit values.
>>
>> Wayne
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