Removing Moiré Effectively - Page 4
By whatever means is most convenient, select the area with the moiré. You can make selections from masks derived from channels, use magic wand or any one of a variety of tools. When you select the area with the moiré, ensure you only select one hue. If you select an area with various shades of a color or entirely different colors, this technique will not work.
Once you have finished creating the selection, use the “Duplicate” option under the “Image” menu and make a second copy of the file.