downsample

Decrease data points

Downsample means to reduce the resolution or data density of something—typically an image, audio file, or dataset.

In digital media, downsampling shrinks file size by discarding information: The image was downsampled from 4K to 1080p.

In statistics, it means selecting a smaller subset from a larger dataset, often to balance categories or make processing manageable.

signal-processing

decimate

Destroy a large portion

aliasingSignal misidentification from undersampling
antialiasingEdge-smoothing rendering technique
low-passFrequency-limiting circuit

interpolation · reconstruction · bit-depth · quantization · analog-to-digital · filter · frequency · bandwidth · discrete · continuous

degradation

artifact

Human-made historical object

blurLack of sharpness
pixelationVisible square artifacts
noiseUnwanted auditory disturbance

aliasing · jagged · moire · banding · blocky · loss · fidelity · quality · distortion · stairstepping

data

reduce

Make smaller in degree

aggregateCombined sum total
subsetCollection within collection
statisticsCollected numerical information

dataset · representative · stratified · batch · preprocessing · analytics

compression

bitrate

Data transfer speed

codecData compression algorithm
lossySacrificing fidelity for size
encodingConverting data to format

transcoding · resolution · JPEG · MP3 · video · audio · image · streaming · storage · thumbnail

Opposites

sampling resolution direction

downsampleupsample

Increase digital resolution

upscale · supersample · interpolate · oversample · scale up

data quantity change

downsampleupsample

Increase digital resolution

expand · augment · inflate · extrapolate · pad

data detail preservation

downsampleenhance

Increase in quality

upscale · superresolution · restore · sharpen · refine

Family

sample, samples, sampling, sampled, sampler, resampling, subsample, resample, subsampling

Familiarity: Top 1,000,000
Profile: Used worldwide · Timeless · Rated G