Mathias Tobler

Ok, found that the CVT::send function does exactely what I needed. I changed the DeepZoom code to resize images to lower resolutions when the requested resolution level was smaller than the tile size of the JPEG2000 images. So far it seems to work ok but will do more testing. Here a comparison: Original code: http://img.brit.org/fcgi-bin/iipsrv.fcgi?DeepZoom=images.aabp/collections/jehouseholder_000539_01.jp2_files/5/0_0.jpg New code: http://img.brit.org/fcgi-bin/iipsrvojp2.fcgi?DeepZoom=images....

I just took a look at the source code for the DeepZoom funciton. It is clear now what is going on. If the DeepZoom resolution is smaller than the smalles resolution of the image the smallest resolution of the image is returned. It seems like that would be easy to change. For small resolutions (e.g. 0,1,2) on could return a resized images. The size of those images follows a exponentila rule with base 2 (0=1, 1=2, 2=4, 3=8 etc.). I have not worked much with C++ but I can give it a short. Is there a...

Thanks for the answeres. I just compiled version 1.1 with OpenJPEG to see if that made a difference but all is the same. As Ruven pointed out in the other thread the issue seems to be the tile size in the original JPEG2000. Re-compressing them is not really feasible (we have over 100k images) but using the export functionality would require a large re-write of the client which is not under my control. I am still wondering why, if IIPImage can resize correctly for export, it would not resize correctly...

I know, unfortunately I don't have a license for Kakadu to get JPEG2000 support and all of our images (more than 120,000) are in JPEG2000. I might install the new version on a different machine and try it out with TIFF but wanted to see if it could have anything to dow with the layers in the JPEG2000 file. Is anybody running the new version with JPEG2000 who would try this out?

I am trying to use some images on a site using the DeepZoom protocol. I have noticed that for small zoom levels (1-6) the size of the returned immage is always the same (e.g. 219x146), the image never gets smaller than that. When I proces the images with the Deep Zoom tool and create static tiles the small zoom levels are much smaller (1x1, 2x2 etc.). Is this a bug or does it have to do with my images. I use JPEG2000 images on IIPImage 0.9.9.. Thanks.

I am modeling the abundance of species in different plots using a Poisson model using...

I am trying to compile JAGS 4.0.0 beta2 on Windows but keep getting error messages....