FidoPhoto Posted January 29, 2016 Share Posted January 29, 2016 I recently watched a video on selection techniques and one of the examples was for selecting a clear glass with liquid in it. They're technique to preserve the transparency went like this: 1. go to the channels palette 2. Cmd (Ctrl on a PC) click on the RGB layer in the channels palette to select the light parts 3. Invert the selection (Select/Inverse) 4. Go back to the layers palette and Cmd+J to put the selection on its own layer 5. Hide the background layer 6. Duplicate the selection layer 1-6 times to build up density of selection 7. Select all the selection layers and merge them into one layer Would this method be okay as an alternative to the one you suggested on a previous post? Do you see any flaws in it? Link to comment Share on other sites More sharing options...
Damien Symonds Posted January 30, 2016 Share Posted January 30, 2016 The previous post you're referring to didn't require transparency, as far as I'm aware. Just a white background. The method you're describing here, for transparency, is really clumsy and destructive. Can you post the original glass photo for me? Link to comment Share on other sites More sharing options...
FidoPhoto Posted January 30, 2016 Author Share Posted January 30, 2016 It's an image I found on the internet. I believe the point of the process is to isolate the glass and water so it can be placed into another image. Does it matter if it's destructive? Link to comment Share on other sites More sharing options...
Damien Symonds Posted January 30, 2016 Share Posted January 30, 2016 Sorry, we can't be fooling around with photos that don't belong to us. Do you mind taking a photo of your own glass of water against a white background? 4 minutes ago, FidoPhoto said: Does it matter if it's destructive? Of course. If it's destructive, and you mess it up, you have no choice but to start over. Our goal is always to use sensible methods that can be undone or tweaked at any time, even after closing and re-opening the file. Link to comment Share on other sites More sharing options...
FidoPhoto Posted January 30, 2016 Author Share Posted January 30, 2016 Here 'tis. Only raw edits done. Link to comment Share on other sites More sharing options...
Damien Symonds Posted January 30, 2016 Share Posted January 30, 2016 This is really important - can you see the difference between your photo and the other one? Your photo is essentially a light glass on a dark background (whereas the other one was a dark glass on a light background). This difference dictates what you can do with the image. Yours can only ever be against a dark background. Link to comment Share on other sites More sharing options...
Damien Symonds Posted January 30, 2016 Share Posted January 30, 2016 In this example, I desaturated, darkened, and blackened the background of your glass ... ... then I'm able to Place it on a photo on "Screen" layer blend mode: 1 Link to comment Share on other sites More sharing options...
FidoPhoto Posted January 30, 2016 Author Share Posted January 30, 2016 Lazy lighting on my part, but yes, I do see what you mean. How did you do the selection? Link to comment Share on other sites More sharing options...
Damien Symonds Posted January 30, 2016 Share Posted January 30, 2016 I didn't, that's the point. Absolutely no selection at all. The "Screen" blend mode does all the work. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now