These are chat archives for openseadragon/openseadragon

9th
Sep 2017
Kampenuss
@Kampenuss_twitter
Sep 09 2017 00:50
Hey everyone! We are looking into this Viewer With Layers (https://msalsbery.github.io/openseadragonmultitester/index.html) and I have a couple of questions. (1) We are trying to figure out how to allow the user to change the color of each image separately, so that it is possible to pick the desired color for each image, for example, first image is blue, the second is gray, the third is cyan etc. In one old thread @iangilman had suggested to use pre-draw but I was not able to find any examples. (2) Is it possible to change all the white pixels to transparent ones?
Kampenuss
@Kampenuss_twitter
Sep 09 2017 01:44
I found an example for (1). This (https://pages.nist.gov/OpenSeadragonFiltering/) is a really great demo. I still have to figure out how to apply this to each image layer, but this is a great start. The question (2) is still open.