Improved Gelbooru upload users statistics

Reconstruct the Gelbooru upload page with a bunch of useful features.

This extension reconstructs the Gelbooru image upload page with multiple features that make posting images as convenient and fast as possible.

Interface

• Uses nicely formatted tags instead of plain text
• Displays a large preview of the uploaded image on the side
• Makes it possible to upload multiple pictures in different tabs

Tagging

• Shows warning if an entered tag likely contains a typo or is non-standard
• Type multi-word tags more easily using spaces instead of underscores
• Built-in artist search for quickly adding artist tags given their URL
• Option to split the tag input into custom groups to get a better overview over entered tags and facilitate a more systematic approach to tagging
• Change the type of a tag (e.g. to artist/character) with just two clicks

Image upload

• Easily upload images by dragging them from other webpages
• Automatically fills in the source URL when uploading images from Pixiv
• Automatically checks if a picture is already uploaded on Gelbooru:

1. Starts with a fast MD5 hash check to find posts with the same image
2. For images from Pixiv, it conducts a source check using the Pixiv ID
3. If the searches above didn't find anything, it tries to find posts with similar images via reverse image search in the IQDB database