Today, many consumers are buying digital cameras, camcorders and cell phones specifically because they advertise the capability to produce high resolution pictures and high resolution images. However, many consumers still do not understand exactly what is meant by high resolution photos and exactly how they differ from other low quality digital photos.
What Are High Resolution Pictures
There are many different deciding factors that are used to determine whether a digitally captured image can be considered to be a high resolution picture or not. A few of these factors are pixel density, spatial resolution and distinguishable squares. Each of these elements must be present at a certain numerical standard for the camera or mobile phone to be considered as a tool that produces high resolution pictures.
The biggest advantage of high resolution images is that the quality of the image is much higher. With high resolution photos, you can easily see a large amount of detail in the photos. Both background and foreground images will be represented with perfect clarity, vivid colors, and sharply distinct lines. This is important when preserving memories because often in a treasured photo the small details are the things that communicate the most about an image. Another incredible feature about high resolution pictures is that these images can be blown up to incredibly large sizes. If, for example, you want to blow up a picture to hang in a large frame on your wall, you will need a high resolution photo in order to accomplish this. Attempting to enlarge the size of a low resolution photo will result in a grainy, boxy and distorted looking image. High resolution photos are often extremely large file sizes, and many individuals who have several high resolution images on their personal computer may need to invest in a separate hard drive in order to store them all.
Pixel Density
The first consideration when determining whether or not pictures can be considered high resolution pictures is the density of the pixels in the camera or mobile phone. Pixels are the small building blocks of any digital image. If you were to peer closely at an old television, you would notice that the image displayed was made up of hundreds of tiny squares. Each square displays a small fragment of the total picture. When these squares line up, a large image is projected. In the best digital cameras, the density of the pixels is very high. The more pixels that are present, the clearer the picture will be. Higher pixel densities will help to produce images with smooth lines and clear details. Often, the pixel count in a digital camera or mobile phone is listed as a number followed by the word megapixel. Mega is a prefix that means one million. So, one megapixel is actually equal to one million pixels. To determine the amount of pixels that are present in a photographic tool, one must multiply the number of pixels vertically by the number of pixels horizontally. Calculating this total will reveal the number of megapixels in the camera or mobile phone and will let users know if their phone or camera is capable of producing high resolution pictures.
Spatial Resolution
Another important factor when determining whether or not a camera can take high resolution photos is the spatial resolution of the photos produced. Often, a camera with a higher pixel density will still produce lower quality images than a camera with fewer pixels if the second camera has a better spatial resolution. Spatial resolution is actually a property of the camera or phone itself and not the images that are produced. The spatial resolution of a camera refers to how closely it can resolve the lines that make up an image. This information can be found by consulting the websites of different camera makers that advertise products that can produce high resolution pictures. Another important factor to consider is a measure of an image’s number of distinguishable squares. This is a complicated and theoretical measurement that estimates how many unique squares could be fit into a single picture or photograph. Professional photographers use all of this information to accurately determine whether or not a camera is capable of producing the high resolution pictures that they desire.