potatotips 27

Transcript

1. WebP͸΋͏࣌୅஗Ε!?! ৽͍͠ը૾ܗࣜ”BPG”Λࢼͯ͠Έͨ

2. None

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💥

15. None

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