downsample


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downsample

(1) To make a digital audio signal smaller by lowering its sampling rate or sample size (bits per sample). Downsampling is done to decrease the bit rate when transmitting over a limited bandwidth or to convert to a more limited audio format. Contrast with upsample. See sampling.

(2) To decrease the color depth of a digital image; for example, from 24 bits to 16 bits per pixel. Contrast with upsample. See color depth and downconvert.
References in periodicals archive ?
Even the images are downsample to 750D feature, the proposed method still outperforms SRC and eSRC by a margin of 8 percent and 4 percent approximately in the case of scarf occlusion.
Thus, it is common practice to downsample data to reduce overabundance of high frequency data.
These days, many sites downsample your images or keep your content after you've deleted your account.
The first step is to take the initial image and downsample it using a triangle filter with a fixed very small window (best results were obtained for a value of around 4K pixels).
Downsample algorithm reduces the size of image by downsample factor and upsample algorithm restores original size of image.