potatotips 27

Transcript

1. WebP͸΋͏࣌୅஗Ε!?! ৽͍͠ը૾ܗࣜ”BPG”Λࢼͯ͠Έͨ
3. Better Portable Graphics • ༰ྔ͕খׂ͍͞ʹߴ඼࣭ • ՄٯѹॖϞʔυ΋αϙʔτ • ϒϥ΢β൛΋ެ͕ࣜαϙʔτʢJSೖΕΔ͚ͩʣ • ΞχϝʔγϣϯΛαϙʔτ
4. — Gigazine “JPEGը૾ͷ໿൒෼ͷϑΝΠϧαΠζͰ ಉ඼࣭ͷ΋ͷΛදࣔͰ͖Δը૾ܗࣜ”
5. BPG vs PNG / JPEG / WebP http://xooyoozoo.github.io/yolo-octo-bugfixes/
6. ҹ৅ • ϒϩοΫϊΠζ͕໨ཱͨͳ͍ʢ׈Β͔ʹͳΔʣ • αΠζ͕খ͘͞ͳͬͯ΋඼࣭͕མͪʹ͍͘ • …͍͢͝🎉
7. $ brew install libbpg Τϯίʔμ / σίʔμΛΠϯετʔϧ
8. $ bpgenc infile.[jpg|png] BPG΁ͷม׵
9. $ bpgdec infile.bpg BPG͔Βͷม׵
10. iOSͰͷσίʔυ ϥΠϒϥϦ࡞Γ·ͨ͠🚀
11. https://github.com/chuganzy/HCImage-BPG
12. HCImage+BPG • macOS / iOSΛαϙʔτ • Carthage / CocoaPodsͰಋೖՄೳ • Ξχϝʔγϣϯαϙʔτ
13. HCImage+BPG
14. WebPͱσίʔυ࣌ؒͷൺֱ💥
16. BPG 1136 × 818 | 13.6KB
17. WebP 1136 × 818 | 13.3KB
18. σίʔυ࣌ؒൺֱ • WebP: 0.7226 / BPG: 2.8070͋ • σίʔυ͸஗͍😂 • നঢ়͢ΔͱΤϯίʔυ΋஗͍
19. ޲͍͍ͯΔͱ͜Ζ • ճઢ͕ͱʹ͔͘஗͍ • ͖Ε͍ͳը૾Λද͍ࣔͨ͠ • σίʔυΛසൟʹ͠ͳͯ͘Α͍
20. ࠾༻ࣄྫ
21. …ݟ͔ͭΒͳ͔ͬͨ😢 ࢖ͬͯΔΞϓϦ͸͋Δͷ͔΋ʁ
22. “Some of the HEVC algorithms may be protected by patents in some countries.” BPG͕HEVCͷಛڐΛ࢖༻͍ͯ͠ΔՄೳੑ͕͋Γ ར༻͢Δͱ͖͸৭ʑؾΛ͚ͭͳ͍ͱ͍͚ͳ͍
23. — LWN.net “ٕज़తʹJPEGΑΓ༏Ε͍ͯΔ͕ JPEGͷ୅ΘΓʹͳΔՄೳੑ͸௿͍ͩΖ͏”
24. 😩
25. • BPG͸ؒҧ͍ͳ͘ૉ੖Β͍͠ϑΥʔϚοτ🚀 • iOSͰ΋؆୯ʹ࢖͑ΔΑ͏ʹͨ͠🙋 • ࢖ͬͯΈ͚ͨͲσίʔυ͸݁ߏ஗͍😂 • ಛڐؔ܎ʹؾΛ͚ͭΔඞཁ͕͋Δ🙄 • ࣮ઓ౤ೖʹ͸·ͩ৭ʑͱૣ͗͢Δ͔΋💧 ·ͱΊ