Very simple images can also be bitmap format (see Figure 1.2). It is necessary for bitmap images to have many pixels if they need to show a lot of detail, and in the case of photos or scanned images, the detail must be captured in the initial creation of the image. It is possible for an image to look deceptively good on-screen but bad in its printed form. If it doesnít have enough pixels,the printed version may lack detail and look blurry or pixilated (the undesirable appearance of individual square pixels or their jagged edges).