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![JPEG - 維基百科，自由的百科全書]()
zh.wikipedia.orgYUV分量可以由PAL制系統中歸一化（經過伽馬校正）的R',G',B'經過下面的計算 ... 壓縮比率與不自然痕跡（artifact ） [編輯] 失真壓縮導致的人為現象（上）與原圖（下），200%放大 按：artifact在這個領域又被解釋為膺像、非自然信號、人為現象 ...瀏覽：606 -
![JPEG - 维基百科]()
zh.wikipedia.org... 的儲存媒體上被封存起來。JPEG的壓縮方式通常是破壞性資料壓縮（lossy compression），意即在壓縮過程中圖像的品質會遭受到可見的破壞，有一種以JPEG ...瀏覽：371
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日期：2024-07-08
Open Source library project for developers who would like to support popular graphics image formats like PNG, BMP, JPEG, TIFF....
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日期：2024-07-11
WebP is an image format employing both lossy[6] and lossless compression. It is currently developed by Google, based on technology acquired with the purchase of On2 Technologies.[7] As a derivative of the VP8 video format, it is a sister project to the We...
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日期：2024-07-07
JPEG XR[4] (abbr. for JPEG extended range[5]) is a still-image compression standard and file format for continuous tone photographic images, based on technology originally developed and patented by Microsoft under the name HD Photo (formerly Windows Media...
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日期：2024-07-12
Lossy Compressed Image Formats Study Mozilla Corporation, October 2013 Introduction This study compares the compression performance of four different image formats: JPEG, JPEG XR, WebP, and HEVC-MSP. The latter three formats were chosen ......
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日期：2024-07-11
--- vs --- bpgenc-0.9.1 -m 8, with x265-1.4+189 --aq-mode 1 --deblock -1:-1 --crf $Q cjpeg-mozilla-3.0 -dc-scan-opt 2 -quality $Q kdu_compress-7.4 -no_info -full -precise -slope $Q jxrencapp-1.1+ccf11047dbec -q $Q cwebp-0.4.2 -m 6 -pass 10 -size $Q...
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日期：2024-07-12
Update: post now contains a Theora comparison as well; see below. JPEG is a very old lossy image format. By today’s standards, it’s awful compression-wise: practically every video format since the days of MPEG-2 has been able to tie or beat JPEG at its ow...
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日期：2024-07-10
Regarding lack of animation support, a few weeks back I threw together I concept application for an implementation of an “animated jpeg xr”. It would be painfully simple to implement on top of the existing standard, and would degrade gracefully on older d...
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日期：2024-07-12
@typcn 這應該是個不錯的方法，我核算一下是否划算 @yyfearth 網上說桌面端的 safari 支持webp 但是移動端不支持，不知到蘋果是雜想的。@NemoAlex 網上介紹說圖片體積減少三分之一，相當可觀了。@youxiachai 求推薦。...
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