Is there a Mac imaging software that allows removing and changing a picture background?

Answer 1

The application Preview that comes with the Mac has the ability to extract an image from the background. The success of such a project depends on how "busy" the background is. A few clearly defined colours in the background will be easier to remove than a jumble of shapes and colours. Launch Preview and then Open your photo from the file menu. Click and hold on the arrow beside the Select icon at the top of the window and then select Extract Shape from the menu that appears. Click the mouse on the edge of the part of the image you want to keep and drag the mouse carefully around the outline of the shape. You can adjust the line so that it is a better fit if needed. Press return to see the result. If the result is satisfactory press return again to remove the unwanted background. Save the image with another name so as not to overwrite the original. Other software that can extract the background include ChromaKeys or Adobes Elements or the full Photoshop (See links below) but most image editing software will offer some masking and extraction functions. The choice depends on what other features you need and how much you want to pay.