MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER GRAPHICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A pixel is
A
a sprite
B
the colors in an image
C
the smallest point on a digital image
D
a collection of colors
Explanation: 

Detailed explanation-1: -Pixels are the smallest unit in a digital display. Up to millions of pixels make up an image or video on a device’s screen. Each pixel comprises a subpixel that emits a red, green and blue (RGB) color, which displays at different intensities.

Detailed explanation-2: -A: In digital imaging, a pixel(or picture element) is the smallest item of information in an image. Pixels are arranged in a 2-dimensional grid, represented using squares.

Detailed explanation-3: -Pixel is the smallest element of an image. Each pixel correspond to any one value. In an 8-bit gray scale image, the value of the pixel between 0 and 255. The value of a pixel at any point correspond to the intensity of the light photons striking at that point.

Detailed explanation-4: -Points vs. Pixels 1 pixel (px) is usually assumed to be 1/96th of an inch. 1 point (pt) is assumed to be 1/72nd of an inch. Therefore 16px = 12pt.

Detailed explanation-5: -In digital imaging, a pixel, pel, dots, or picture element is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen.

There is 1 question to complete.