Question

How are digital images saved in computers? Explain in terms of pixels and digital signal processing.

Answer 1

An Image represented in numbered form on Computer System is known as Digital Image. To convert a real Image into Digital Image, it is required to set pixels of image. Pixels are the small elements located in an image. A small group of numbers are created as characteristics for each pixel which form an array sequence. We represent an Image Resolution as pixels per inch. Higher the Resolution higher is the Image Quality. The Color Image uses bits per pixel for color representation of a colored image. The more bits will generate a more range of possible colors.

A Digital Signal Processing is used to process the signals of an image or a video into numeric form for further modification. The Modification is performed through a series of mathematical operations such as addition, subtraction etc. The Signal Processing is required to be of further use for evaluating or generating a signal or required output. A DSP uses Program Memory which saves the programs which will be further required for processing and Data Memory which stores the data to be used. A Compute Engine is used to perform the mathematical operations by using an Input/Output component.