Q5 - JPEG/Pixel/Bitmap Images, Data Compression

“Pixel” is a construction of ___

“picture element”

Pixels are always arranged in a ___

regular grid

Most devices allow the color of each pixel to be controlled ___

separately

Each ___ represents the color of a single pixel

number

___  superimpose a conceptual grid of pixels over the image

bitmaps

bitmaps record the ___ in numeric form

color of each pixel

HTML and CSS files are stored as ___

text

Each image used on the web is typically stored in a ___ file

separate

___ is the term used for the process of achieving balance

Optimization

___ files reduce bandwidth expenses and wait times for users

Smaller

One of the most effective means of reducing a file’s size is ___

data compression

Data compression involves storing the same data using fewer overall less ___

bits

data is compressed for storage and transmission and ___ prior to use

decompressed

___ techniques result in no lost data

Lossless compression

___ techniques allow for some data to be discarded or modified during the compression process

Lossy compression

___ is designed primarily for photographs

jpeg

jpeg offers more than 16 million ___

colors

jpeg utilizes ___

lossy compression

saving a JPEG derived from and JPEG results in more ___

___

Degree of compression for jpegs is determined at the time the file is ___

saved