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seen Oct 20 at 23:04

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Oct
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Feb
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accepted How do I extract a specific hue into a channel in Photoshop?
Feb
21
comment Does Photoshop have an equivalent to Gimp's “Color to Alpha”?
@jrista: Nah, it's in Gimp! It's not much hassle to boot it up even if I'm in photoshop. I was just floored that such an "obvious" light box issue is (was?) not at all addressed in Photoshop.
Oct
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Jun
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comment Does Photoshop have an equivalent to Gimp's “Color to Alpha”?
So the issue is that a bumpy clear bottle over a red background will have some parts red (as you'd expect), some parts full white (due to reflections of lights), some parts really bright red (due to concentration of light through refraction), and some parts full black (since where there's concentration of red, there'll be lack of it), and of course everything in between. So what this means is that all red hue must be removed, an exact red match is 0% alpha, and it continues from there to full 100% alpha (white and black).
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Dec
10
comment How do I extract a specific hue into a channel in Photoshop?
Strangely, I think this is the same issue I encountered here: photo.stackexchange.com/questions/2359/…. I could use Gimp's "Colour to Alpha" tool and then convert the alpha layer to Gold, and then I'd be left with the black elements to extract to another layer.
Dec
10
comment How do I extract a specific hue into a channel in Photoshop?
When I go to print, I want to be able to specify a metallic color to for the hand print so it's shiny. In particular, I'd change the gold to silver. I'd also like to retain the black element as a channel in case I decide to do CMYK printing instead.
Dec
10
comment How do I extract a specific hue into a channel in Photoshop?
I've got that far, but I'm wanting to split the image selection into the parts that are gold, and the parts that are black. Then I can adjust each separately; notably to be able to change the gold to silver etc.
Dec
10
asked How do I extract a specific hue into a channel in Photoshop?
Dec
5
awarded  Nice Question
Oct
15
awarded  Self-Learner
Aug
26
comment Does Photoshop have an equivalent to Gimp's “Color to Alpha”?
From what I experienced Select Color Range would make a hard selection. e.g. in Gimp's plugin, if there is a green tinted patch, and I'm removing grey, the grey factor of the green is converted to transparency. Select Color Range would likely completely non-select the green transparent tint.
Aug
26
comment How do I make a bottle image transparent?
That is so awesome! So much so I've asked a specific question about whether photoshop has any sort of equivalent: photo.stackexchange.com/questions/2834/…