Diff of 2019-08-30/ImageBinary

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.
• Go to 2019-08-30/ImageBinary.

# 参考

- PHPでバイナリ処理Tips
--  https://speakerdeck.com/yoya/phpbinarytips

- JPEG のメタデータについてうんちく。主にバイナリの観点で。
--  https://speakerdeck.com/yoya/jpegmeta

- Twitter への画像投稿をネタにPNGとJPEGのお勉強
--  https://speakerdeck.com/yoya/twitterimgupload