[Feature] Skip first blank page

[RWoof]

Is your feature request related to a problem? Please describe.
Downloads from Viz always seem to have a blank first page.

Describe the solution you'd like
I'd like an option to automatically skip the first page if it's blank.

Describe alternatives you've considered
Currently I'm having Komga delete the page as a duplicate page each time, but it would still be better if Hakuneko could autodetect that it was blank and just not add it to the file.

Context (please complete the following information):
HakuNeko Version master@f910d0c

[MikeZeDev]

Note for myself : check if possible in Haruneko/ not done already.

[Sheepux]

Note for myself : check if possible in Haruneko/ not done already.

I dont think so. But having a global "ban hash <...>" feature would be nice
The current mangahere page removal is dirty.
https://github.com/manga-download/haruneko/blob/master/web/src/engine/websites/decorators/DM5.ts#L60-L65
If we had a more global hash detector it could include this usecase

[MikeZeDev]

I think there was a website where the blank page was name "white_page" so if its VIz its easy to filter.

Its not so simple to filter white page. Website may use nuances of white :D. Hash change with every little variation of the file.

[Sheepux]

What i mean is that user could rightclick: <ban image's hash>

[MikeZeDev]

Brilliant.

[MikeZeDev]

Shower though : Imagine having to check all images of a chapter for banned hash, on manhwa chapters which can have like 100 pages, on volumes. Much processing power and time needed.

[Sheepux]

md5 can process 400 MB/s on a Intel i7 950 3.05GHz from 2009 (3ghz 4core/8t)

[MikeZeDev]

Yeah but thats something to consider 🤷