Hello. I have created a bar graph in Excel that and I am using an image of a piece of wire in place of plain bars. I took a picture of the wire and used the magic wand tool in Paint.NET to make the background in the picture of the piece of wire transparent. When I view the graph in Excel it looks great; only the piece of wire is shown in place of the bars. The problem is that when I print the graph in color there is a light blue solid block around each piece of wire, so it appears that the "transparent" back ground of the wire picture is actually showing as light blue when printed. If I make the background of the graph white the blue blocks do not appear when I print the graph, but I need the background to be grey and when it is grey the blue blocks are visible.
I thought maybe I could fix this by using the magic wand tool and then deleting the transparent background that surrounds the piece of wire in the picture so the remaining file would be just the piece of wire with nothing around it. I tried using the magic wand tool and then cropping the image, it won't get rid of the background material. It is forcing the file to remain a rectangle which includes some background area instead of allowing the file to be in the shape of the piece of wire with no background at all (I hope this makes sense). Any ideas? Thanks!