MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER GRAPHICS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

We want to save an animated logo with a very low file size. We used color palette of 256 colors.Which if the following file format allows as to do that?

A	png
B	jpg
C	gif
D	bmp

Explanation:

Detailed explanation-1: -GIF (. GIF or Graphics Interchange Format files are widely used for web graphics, because they are limited to only 256 colors, can allow for transparency, and can be animated. GIF files are typically small is size and are very portable.

Detailed explanation-2: -The GIF (Graphics Interchange Format) is a type of bitmap, but unlike JPEG or PNG, GIF files are limited to a maximum palette of 256 colors. GIF also provide animation support, contributing to its long success as a format for small animations in various social networking platforms.

Detailed explanation-3: -The GIF file is 2.4 times bigger than the JPG, but is clearly of lower quality. Note the use of pixel dithering to try to match the color gradations in the shirt. (You may want to back up from your monitor for a more realistic comparison of the appearance of the images.)

Detailed explanation-4: -Finally, the JPEG image (. jpg) is the smallest image and is a full 24 bit color image but it is compressed using a lossy compression scheme. This means that, unlike the PPM, RGB and PNG files which are totally equivalent, the JPEG file is not.

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