Image Representation
Explore how computer systems represent images by understanding black and white, grayscale, and RGB colored images. Learn to calculate memory requirements for digital images and grasp the basics of image pixels and bit usage.
Types of images
The following are the common types of images used in digital computers.
A black and white image
These images require representation of just two colors per pixel. Each pixel with the value 0 represents the color black, while each pixel with the value 1 represents the color white. The total number of pixels in an image can be found by multiplying the number of horizontal pixels with the number of vertical pixels.
What is the total number of pixels in the above figure?
A grayscale image
A grayscale image is one in which the value of each pixel is a single sample representing only an amount of light. In other words, it ...