What is Digital Zoom?
Digital zoom causes digital cameras to zoom in on the center section of an image. The center area will then look bigger, but the same number of pixels are used. This means that the quality of the image is reduced. If a zoom lens is important to you then make sure that you look out for digital cameras that come with an optical zoom. Digital cameras with optical zooms will produce images of a far higher quality.
Digital zoom causes digital cameras to zoom in on the centre section of an image. The centre area will then look bigger, but the same number of pixels are used. This means that the quality of the image is reduced. If a zoom lens is important to you then make sure that you look out for digital cameras that come with an optical zoom. Digital cameras with optical zooms will produce images of a far higher quality and digital zoom does nothing that can’t be achieved on a home computer.
Digital zoom causes digital cameras to zoom in on the centre section of an image. The centre area will then look bigger, but the same number of pixels are used. This means that the quality of the image is reduced. If a zoom lens is important to you then make sure that you look out for digital cameras that come with an optical zoom. Digital cameras with optical zooms will produce images of a far higher quality.
Digital zoom is simply a software program running in your camera that enlarges your original image (as if you were zooming in with a real optical zoom lens). The resolution of the digital sensor is fixed and no more image information exists to help create this “zoomed in” simulation. Therefore, the software must attempt to make an educated guess at what the additional pixels might look like. This process is called interpolation, and is the act of estimating what data might exist between any points of known data. For example, let’s say that your camera has 2.0x digital zoom. When the camera is set at 1.0x digital zoom, the camera is capturing exactly what it sees with its sensor array through the lens (ie. the digital zoom is disabled). But if one were to increase the zoom to 1.5x digital, then we are basically inserting an extra pixel for every two real pixels. Many algorithms exist for this interpolation, but they all generally involve averaging the contents of the known pixels surrou
