Postby Lifelonglearner » Sat Sep 05, 2015 3:47 am
Thank you, Brynn. I made the background gray; when I ran the "trace bitmap," it kept the gray background and made the white transparent. I don't understand why.
While looking forward to a suggestion, I came up with an approach (by pure luck) that worked for me. It involves layers, which I just happen to be learning about. I made the white areas of the image gray, ran the "trace bitmap" with "remove background" checked and "stack scans" unchecked to make the layers easy to separate. One of the layers turned out to be just the gray areas in the image; I selected the layer and clicked white on the color bar at the bottom. The gray turned white. Then I reassembled the layers. Now I have an image with white areas and no background.
Thanks again. Next time I'll do more experimenting before I ask for the forum's attention.