safebooru 2020.01 rip + addons from yande-re, gelbooru, e-shuushuu, konachan etc

Next step for series of rips https://nyaa.si/view/1202653 for period 08.2019-01.2020

This imageset not intended to be "original and complete" but rather "the best of" and "representative" to help users not to loose interesting fandom, artist or even single prominent picture

Used sources (relative priorities high to low):

• safebooru.org (ID 29xxxxx)
• yande.re (with some questionable images in Q folders)
• gelbooru.com (a little bit NSFW in Q)
• konachan.com
• anime-pictures.net
• e-shuushuu.net
• chan.sankakucomplex.com (with Q, only from daily top 200)
• danbooru.donmai.us

File names structure : %website% - %id% - %copyright% ~ %character% (%artist%).%ext% Images zipped according source, ID range (not to exceed 2 GB) and aspect ratio (dimensions 2 folders):

• “squares” 1x1 (+/- 20%)
• “pages” 3x4 (+/- 8%)
• "highpages" 2x3 (+/- 40%)
• “screens” 3x2 (+/- 40%)

Transformations and filters:

• Mpixels >= 1.2, width >= 900, height >= 900
• PNG converted to JPG
• downsize to 64MPix and/or maxsize 9000 px
• most explicit (1/3 to 2/3 depending on source) images excluded from questionable
• comic, 4koma, overtexted, primitives cleared
• crops when large simple or dirty background
• sometimes gamma correction and other nontrivial improvements
• carefully deduplicatied (with AntiDupl NET)

After some processing and bundling this release will be a part of BOORU-CHARS OPEN DATASET "volume" V2020A with thumbnail (512x512px images) and supporting structured metadata - tags, image statistical properties and results of some processing