Released clisk 0.4.4 with functionality to support image filters.
Example below:
(let [filt (com.jhlabs.image.BoxBlurFilter.)] (. filt setRadius 8) (show (image-filter filt cannon)))
The implementation is very general purpose – it basically allows any BufferedImageOp to be used as a filter.
Since BufferedImageOps operate on BufferedImages, this poses a slightly interesting problem when applied to clisk image functions (which are arbitrary precision image generators). The solution I chose to handle this is simply to render the clisk image into a BufferedImage to allow the filter to be applied, then convert back to a texture-map so that it can be used in following image functions. Not particularly elegant, but it seems to work OK.
I was happy to stumble across an excellent open source library of Java image filters - Image Filters at JHLabs. So now clisk has a great library of image filters at your disposal, thanks to the power of open source!
Scott Parker said,
October 1, 2012 at 9:15 pm
This is looking very promising. I’m doing some experimental image processing in Quil today, but would love to switch over to clisk eventually.
Keep up the good work!
mikera7 said,
October 2, 2012 at 12:33 am
Hi Scott, glad you like it! FWIW, I think Clisk and Quil are targeted at slightly different use cases: Quil is more focused on realtime drawing / animation / live coding while clisk is more about complex image generation / processing (which might well be too much to do in realtime). The output of clisk is just a BufferedImage, which you need to render somehow – possibly via Quil!
Scott Parker said,
October 2, 2012 at 1:46 pm
Indeed. Since I don’t have much need of animation or realtime, Quil is a bit of overkill for me, but seemed like the easiest way to draw on a canvas and then apply successive transformations.