A wide range of picture types are suitable for creating a Color PhotoStitch. The primary factor, however, is to use photos where the face is well defined, especially the eyes, and the color is good.
An imperfect photo can still make a very good embroidery. Red eye can be removed, and the color in underexposed photos brought out by Autolevel. Slight overexposure and cold lighting can be improved by adjusting saturation.
A plain, well contrasted background will be easy to remove, for example a picture taken against a blue sky, or a brightly painted wall. If the picture was taken against a patterned background, the background color may blend in with the person’s hair. This type of background may take a little longer to remove.