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WebP͸΋͏࣌୅஗Ε!?! ৽͍͠ը૾ܗࣜ”BPG”Λࢼͯ͠Έͨ

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Better Portable Graphics • ༰ྔ͕খׂ͍͞ʹߴ඼࣭ • ՄٯѹॖϞʔυ΋αϙʔτ • ϒϥ΢β൛΋ެ͕ࣜαϙʔτʢJSೖΕΔ͚ͩʣ • ΞχϝʔγϣϯΛαϙʔτ

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— Gigazine “JPEGը૾ͷ໿൒෼ͷϑΝΠϧαΠζͰ ಉ඼࣭ͷ΋ͷΛදࣔͰ͖Δը૾ܗࣜ”

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BPG vs PNG / JPEG / WebP http://xooyoozoo.github.io/yolo-octo-bugfixes/

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ҹ৅ • ϒϩοΫϊΠζ͕໨ཱͨͳ͍ʢ׈Β͔ʹͳΔʣ • αΠζ͕খ͘͞ͳͬͯ΋඼࣭͕མͪʹ͍͘ • …͍͢͝🎉

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$ brew install libbpg Τϯίʔμ / σίʔμΛΠϯετʔϧ

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$ bpgenc infile.[jpg|png] BPG΁ͷม׵

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$ bpgdec infile.bpg BPG͔Βͷม׵

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iOSͰͷσίʔυ ϥΠϒϥϦ࡞Γ·ͨ͠🚀

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https://github.com/chuganzy/HCImage-BPG

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HCImage+BPG • macOS / iOSΛαϙʔτ • Carthage / CocoaPodsͰಋೖՄೳ • Ξχϝʔγϣϯαϙʔτ

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HCImage+BPG

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WebPͱσίʔυ࣌ؒͷൺֱ💥

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BPG 1136 × 818 | 13.6KB

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WebP 1136 × 818 | 13.3KB

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σίʔυ࣌ؒൺֱ • WebP: 0.7226 / BPG: 2.8070͋ • σίʔυ͸஗͍😂 • നঢ়͢ΔͱΤϯίʔυ΋஗͍

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޲͍͍ͯΔͱ͜Ζ • ճઢ͕ͱʹ͔͘஗͍ • ͖Ε͍ͳը૾Λද͍ࣔͨ͠ • σίʔυΛසൟʹ͠ͳͯ͘Α͍

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࠾༻ࣄྫ

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…ݟ͔ͭΒͳ͔ͬͨ😢 ࢖ͬͯΔΞϓϦ͸͋Δͷ͔΋ʁ

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“Some of the HEVC algorithms may be protected by patents in some countries.” BPG͕HEVCͷಛڐΛ࢖༻͍ͯ͠ΔՄೳੑ͕͋Γ ར༻͢Δͱ͖͸৭ʑؾΛ͚ͭͳ͍ͱ͍͚ͳ͍

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— LWN.net “ٕज़తʹJPEGΑΓ༏Ε͍ͯΔ͕ JPEGͷ୅ΘΓʹͳΔՄೳੑ͸௿͍ͩΖ͏”

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😩

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• BPG͸ؒҧ͍ͳ͘ૉ੖Β͍͠ϑΥʔϚοτ🚀 • iOSͰ΋؆୯ʹ࢖͑ΔΑ͏ʹͨ͠🙋 • ࢖ͬͯΈ͚ͨͲσίʔυ͸݁ߏ஗͍😂 • ಛڐؔ܎ʹؾΛ͚ͭΔඞཁ͕͋Δ🙄 • ࣮ઓ౤ೖʹ͸·ͩ৭ʑͱૣ͗͢Δ͔΋💧 ·ͱΊ