Troy Piggins wrote:
> * Troy Piggins wrote:
>> I have 2 exposures of a photnefo. One with building exposed
>> correctly but the sky blown out. The other with the sky exposed
>> but building too dark. Want to use the second sky on the first
>> building.
>>
>> Have both photos in different layers and want to create a layer
>> mask to blend them. I can do it manually, but thought that by
>> using colours->threshold would be a good way of selecting the
>> areas I want masked.
>>
>> Any tips?
>>
>> I duplicated the good sky shot and have it black and white by
>> using threshold like what I want the layer mask to be, but can't
>> get it into the layer mask other than just to use colour select
>> and bucket fill.
>
> Think I figured out a way. I created a layer mask as a grayscale
> of the image, then applied threshold to the grayscale layer mask,
> then blurred it a little.
>
> That how you'd do it?
>
I've done something like that before, Troy, but I did not think to start
with grayscale for the mask; I'll have to try that sometime. My problem
with that sort of mask has been in areas of great contrast, but with
little
definition, such as the branches of a tree...
John.
--
Using the Gray Box
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