paranoid.android

Hello, I am not a graphic designer, and I'm not even sure if I am asking the correct question. However, I am trying to do something that I think would be simple to accomplish. I have an image. I want to take a specific part of that image, which is a non-standard shape, and paste it into a new image. To select the non-standard shape, I am using the magic wand. I then copy the selected area. Next, I paste the copied image onto my new image, which has a dark gray background. But when I copy the image into the new image, it does not seem to blend with the background nicely. There are little white specks around the edges of the copied image. If I change the tolerance on the magic wand, part of the image becomes distorted. How do I select an image with the magic wand and make it blend nicely on a new background of a solid color? Thank you

Hello, I am not a graphic designer, and I'm not even sure if I am asking the correct question. However, I am trying to do something that I think would be simple to accomplish. I have an image. I want to take a specific part of that image, which is a non-standard shape, and paste it into a new image. To select the non-standard shape, I am using the magic wand. I then copy the selected area. Next, I paste the copied image onto my new image, which has a dark gray background. But when I copy the image into the new image, it does not seem to blend with the background nicely. There are little white specks around the edges of the copied image. If I change the tolerance on the magic wand, part of the image becomes distorted. How do I select an image with the magic wand and make it blend nicely on a new background of a solid color? Thank you