Search found 4 matches

by String
2019-05-30T07:45:13-07:00
Forum: Users
Topic: Resize to large destination slows down at 33%
Replies: 7
Views: 2332

Re: Resize to large destination slows down at 33%

Ah, the curse of open source. OK, fair enough - I certainly have neither the time nor the expertise to take this on, so it's not reasonable for me to expect anyone else to shoulder the burden.

Thanks for all you've done!
by String
2019-05-29T06:39:14-07:00
Forum: Users
Topic: Resize to large destination slows down at 33%
Replies: 7
Views: 2332

Re: Resize to large destination slows down at 33%

Thanks, Fred. I greatly respect all the effort you've put into IM - but "all the rest of the pages at http://www.imagemagick.org/Usage/" is one shedload of material to learn before using the software. And I'm really more of a reference than tutorials kind of guy - that's just my learning style. Whic...
by String
2019-05-28T11:45:00-07:00
Forum: Users
Topic: Resize to large destination slows down at 33%
Replies: 7
Views: 2332

Re: Resize to large destination slows down at 33%

That solves it - thanks!

Might I suggest that -scale is mentioned in the -resize documentation as an alternative? I simply hadn't found it, or I probably would have tried it (and not cluttered the forum with this post).
by String
2019-05-28T08:41:47-07:00
Forum: Users
Topic: Resize to large destination slows down at 33%
Replies: 7
Views: 2332

Resize to large destination slows down at 33%

I'm processing some astronomical images of reasonable size, and in my experience, the -resize operation (or equivalents) slows down greatly when it hits 33%. Running from the command line with the -monitor option, up until that point it's just whizzing along - then it all but stops, dropping to ~1 s...