by Dinesh Thakur Category: Basic of Computer Graphics

When choosing a monitor, one of the factors that the customer usually considers is the refresh rate. A high refresh rate is important in providing a clear picture and avoiding eye fatigue.

 
by Dinesh Thakur Category: Basic of Computer Graphics

Image resolution describes the detail an image holds. The term applies equally to digital images, film images, and other types of images. Higher resolution means more image detail. Image resolution can be measured in various ways. Basically, resolution quantifies how close lines can be to each other and still be visibly resolved.

 
by Dinesh Thakur Category: Basic of Computer Graphics

All operations on computers are in terms of 0’s and 1’s and hence figures are also to be stored in terms of 0’s and 1’s. Thus a picture file, when viewed inside the memory, can be no different from other files – a string of Os and 1s. However, their treatment when they are to be displayed makes the difference. Pictures are actually formed with the help of frame-buffer display as follows

 
by Dinesh Thakur Category: Basic of Computer Graphics

Resolution refers to the sharpness, or detail of the usual image. It’s a primary function of the monitor & it’s determined by the beam size & dot pitch. The screen is made up of a number of pixels.

 
by Dinesh Thakur Category: Basic of Computer Graphics

A bitmap is an image or shape of any kind-a picture, a text character, a photo-that's composed of a collection of tiny individual dots. A wild landscape on your screen is a bitmapped graphic, or simply a bitmap. Remember that whatever you see on the screen is composed of tiny dots called pixels. When you make a big swipe across the screen in a paint program with your computerized "brush," all that really happens is that you turn some of those pixels on and some off. You can then edit that bitmapped swipe dot by dot; that is, you can change any of the pixels in the image. Bitmaps can be created by a scanner, which converts drawings and photographs into electronic form, or by a human artist (like you) working with a paint program.

 
by Dinesh Thakur Category: Basic of Computer Graphics

Aspect ratiois a fancy term for "proportion," or the ratio of width to height. for example 4:3 for a computer screen. For instance, if a direction in a software manual tells you to "hold down the Shift key while you resize a graphic in order to maintain the aspect ratio," it simply means that if youdon'thold down the Shift key you will stretch the image out of proportion.



 
by Dinesh Thakur Category: Basic of Computer Graphics

A technique called double buffering permits one set of data to be used while another is collected. It is used with graphics displays, where one frame buffer holds the current screen image while another acquires the bits that will make up the next image. When it is ready, the buffers are switched, the new screen is displayed, and the process continues. 

 
by Dinesh Thakur Category: Basic of Computer Graphics

Unfortunately, the concept of graphics of displaying pictures is lot more complicated than what has been described so far - evaluate the points using the equations, store them in a file and use raster graphics methods or use simple line drawing algorithms.

 
by Dinesh Thakur Category: Basic of Computer Graphics

The refresh rate is the number of times in a second that display the data it’s being given. This is distinct from the measure of from rate in that the refresh rate includes the repeated drawing of identical while trans rate measures how a video source can lead an entire frame of new data to a display.

 
by Dinesh Thakur Category: Basic of Computer Graphics

Pictures on a computer display or the process of creating pictures on a computer display. The term came into use when there was still a distinction between computers that could display only text and those that could also display pictures. This distinction is lost now that almost all computers employ a GRAPHICAL USER INTERFACE.



 

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About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.