IMAGE CAPTURE

IMAGE CAPTURE

 

 



An image capture is a device which is used for taking images and storing them in a safe place. It is a digital image, so can be transported to and from different digital devices, such as a digital camera to a computer without losing the image or the quality.

Scanners are useful for getting images onto a computer or storage device that are A4 in size. These images can be anything such as drawings or book extracts and can be placed onto devices such as mobiles or computers. The images can then be altered digitally to the preference of the person who scanned the image in.

A digital camera has three different forms of image capture known as single-shot, multi-shot and scanning. Single-shot images are images that are either made up of the three primary additive colours, red, blue and green, or a Bayer filter sensor. Multi-shot images are shots that are exposed in three or more of the apertures openings, this helps to capture the image and help create an image that looks good. Scanning on a digital camera helps to gain a very high-quality shot as it scans for the three colours and puts them onto three lines which is called a tri-linear shot.

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The cameras resolution also plays a part in the image capture as the resolution is made up of pixels per inch, these pixels help to maintain quality and detail depending on how many pixels there are per inch. The images that are captured will change in quality depending on the screen size meaning that images that are taken may look different on a computer screen than they do on the digital camera.

Storage for images can include various places. One of the most used digital storage formats is a memory card, this helps to preserve the images that have been taken and allows them to be taken to different places and put on other digital devices. File sizes showcase the sizes of the images that have been taken. Depending on the detail of the images, the file size may be large or small, if the file size is smaller, more images can be taken and kept, therefore having larger images will mean that less can be taken.


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