I've been working on making graphics for junk journaling. I like to take photos of crochet doilies and lace I see at antique stores and thought I'd try making transparent pngs of them to use as clip art for backgrounds and such. I could also print them as is with a white background.
So here is the image I'm going to start with:
I'd normally use the Quick Selection Tool to remove objects from backgrounds but there would be too much to fix here with all the holes.
Instead, I'll be making the selection via Color Range. Go to Select > Color Range and use the dropper to select the color of the doily (or of the background color but it wasn't as effective for me in this photo) in the Selection box.
I kept clicking on the doily until it got as dark as possible in the Selection box and then adjusted the Fuzziness so it'd increase the range of colors selected. Then I checked Invert so it would select the background instead of the doily. Click OK.
As you can see, the selection is not perfect. It still has bits of the background but that can be easily removed. But first!! Make sure the layer is not locked and then use the delete/backspace key to remove the selected background. I made a new layer below it and filled it with a dark color so I could see everything easier.
And here is the transparent image!~
I like to keep the image at a large size since it's easier to size down for projects rather than have Photoshop try to resample everything.