Fast JPG thumbnail creation? (downsampling)

[Stefan O.]

I'm looking for a fast and memory efficient way to downsample a JPG.

On Android there is BitmapFactory.Options.inSampleSize, but how would I do this using SKIA through skiko bindings on JVM?

Right now I load a full resolution image and create my thumbnail using SkCanvas drawImageRect, but this takes its time and memory. I need something faster for processing thousands of images.

Can someone show me an example how to scale down a big image to a thumbnail with the longest side of 480px?

[Mike Reed]

SkCodec::getScaledDimensions()

I think this class may do what you need.

--
You received this message because you are subscribed to the Google Groups "skia-discuss" group.
To unsubscribe from this group and stop receiving emails from it, send an email to skia-discuss...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/skia-discuss/2aac13e9-1c54-4b63-8a91-8f27ff0b675fn%40googlegroups.com.

--

"I think I can safely say that nobody understands quantum mechanics." -- Richard Feynman

"It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so." -- Mark Twain

"I am pleased to see that we have differences" -- Surak

[Stefan O.]

Looks plausible. Thank you! :)