Data in AP Computer Science Principles

Random single pixels

Color palettes variations

Consecutive repeated pixels

High-contrast edges

Reducing redundancy is the primary goal

The data contains repeating patterns

Minimizing file size and transmission time is a priority

Preserving the original data is crucial

Burrows-Wheeler transform

LZW compression

Arithmetic coding

Run-length encoding

It permits increased frequency of keyframes leading to large-sized but more accurate videos.

It ensures that every frame has enhanced graphical detail at more resource-intensive rates.

It mandates constant bitrate across all sections of the video regardless of motion intensity.

It allows developers to prioritize general features over individual pixel manipulation, enhancing efficiency.

File size and encoding technique

Number of bytes and encryption algorithm

File format and hardware compatibility

Amount of redundancy and compression method used

Doby Digital technique.

MPEG formats.

JPEG encoding.

Huffman coding.

Reduction of quality

Reconstruction of the file

Minimization of file size

Preservation of original data

To improve data quality

To encrypt data

To increase internet speed

To reduce the size of files

Lossless compression

Textual compression

Redundant compression

Lossy compression

They increase contrast levels automatically between different tissue types without user intervention.

They allow both spatial resolution preservation and high compression ratio for large images.

They enable real-time transmission of images over networks with minimal lag due to smaller file sizes.

They reduce the amount of radiation patients are exposed to during scans such as MRI's.