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The contents of the Audio compression (data) page were merged into Data compression. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
The contents of the Video compression page were merged into Data compression. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
[...] imposes computational or other costs through decompression; this situation is far from being a free lunch. Data compression is subject to [...]
A free lunch, really? Sure it's in context but is it really contributing anything useful to the article?
What is block compression?
I feel that readers who see the phrase "block compression" and look it up on Wikipedia should be directed to an article that at least mentions "block compression", in accordance with our WP:R#ASTONISH guideline.
Currently Wikipedia redirects that phrase to this data compression article, which never mentions the phrase "block compression". What is the best way to comply with that guideline: (a) Mention "block compression" in this "data compression" article? (b) Re-point that redirect to some other article that mentions "block compression"? Or (c) Change that redirect into an article about block compression?
In my experience with embedded systems and GPU-accelerated graphics processing, "block compression" usually refers to a kind of image compression that divides up a raster image into fixed-sized square blocks of pixels (typically 4x4 pixels), and compresses each block into a fixed-size block of coding bits. For example, "Block Compression 2" (BC2) is apparently part of the S3 Texture Compression de-facto standard for GPU texture compression. Block Truncation Coding (BTC) has been used in spacecraft image transmission.
I see that "block compression" previously redirected to the discrete cosine transform (DCT) article, which at least mentions "block compression". The people who wrote that article describe "block compression" as a slightly different kind of image compression that divides a raster image into fixed-size square blocks of pixels (typically 8x8 pixels), and compresses each block (using a discrete cosine transform) into a variable-sized block of coding bits.
-- DavidCary ( talk) 19:50, 24 March 2022 (UTC)
User:Vladimir Alexiev has added information about AI. I fear these sources are more about clickbait. I'm not sure how much actual AI is involved. Can go back these days and label any clever algorithm AI? ~ Kvng ( talk) 11:30, 12 April 2023 (UTC)