John Cupitt
OK, we have 2.1.14, let me know if it works.
Hello, I need to fix up the nip2 formula, I think it's been broken for a while :( There's a nip2 macOS binary here: https://github.com/jcupitt/nip2/releases/tag/v8.6.0-beta2 It might be useful. It...
Hello, I'll have a go at a docker build on aws.
This seems to work: https://github.com/jcupitt/docker-builds/tree/master/pyvips-aws Though I don't know if that'll help you much.
Hi Joe, pyvips will make some use of cores, but how much parallelism it can find depends on the task. For example, for conversion to pyr tiff I see: ```...
Oh, nice! How can I try it? I'm not very good with arch. I tried: ``` $ docker run -it --rm archlinux/base:latest [root@8b326f64b513 /]# pacman -Sy python-pyvips :: Synchronizing package...
Hello @nd26, WSI files are usually compressed with jpeg2000, so almost all your runtime will be spent inside your jp2k decoder. The speed of the disc won't really have any...
For a simple benchmark, I'd try: ``` $ time vips avg CMU-1.svs 233.716228 real 0m38.827s user 1m22.160s sys 0m2.017s ``` ie. find the average pixel value. That should max your...
You wrote: > real 0m56.622s > user 0m57.984s That's curious, you should see user about 2x real on a two-core machine. What processor are you using? libvips has quite a...
re. OpenJPEG, have a look at at the mailing list, there has been some discussion of AVX and OpenCL acceleration, plus some branches with code.