The final version of the upsmooth sampler (which uses VSQBS = Vertex-Split subdivision with Quadratic B-Splines finish) has been added to https://bugzilla.gnome.org/show_bug.cgi?id=619314 Except possibly for moving the computation of the singular values of the (inverse of) the Jacobian matrix of the transformation out of the upsmooth sampler---this may be a good idea because for affine transformations the singular values are constant, and consequently do not need to be computed for every pixel---job which I'll assign to Adam Turcotte, this (hopefully) completes the work on samplers tuned for upsampling me and my team are planning to do. Note that upsmooth could be argued to be a good replacement for bilinear. It's barely slower, and it upsamples and mildly downsamples better. Of course I am preaching for my church, but I don't really see why one would want to use bicubic or lanczos (or even bilinear) instead of this new trio upsize, upsharp and upsmooth. ------ Next on the to do list: first, resamplers tuned for downsampling, then, "universal" samplers, which use Jacobian information to automatically pick a method appropriate for the situation. Nicolas Robidoux _______________________________________________ Gegl-developer mailing list Gegl-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gegl-developer
