I have taken a series of pictures in a light box with the aim of using them in a school recipe book we are making and selling for charity. I'd like to try and remove the background of one image in particular. The image is of a plain cupcake in a white liner taken on a white background. My aim is to use the image on either a white page of a pastel tinted page with the recipe listed at the side. Can any one suggest a suitable techniques to achieve this? P.S. I have Photoshop CS4 on my home machine and CS6 on my work machine. Thank you.
You could select a channel that has the most contrast between the subject and the back ground start to create a selection that you could drop out the bg. The blue would be good for the muffin and the background. However, you have a lot of white on white, where I think you're just going to have to go in and use a brush to mask out the bg. Luckily it isn't that complex of an image. For a lot of the straight sections of the paper cup, you can use click the brush, then move the cursor and shift click to create a straight line. I would say you couls also use the pen tool, but the edges are soft, so you would have to feather them after creating your selection from the path.
Much appreciated. i will give that a go. I probably should have taken the pics on a darker background. Guess thats why they call it a learning curve :-)