It's not a standalone program, it's usually a set of pixel shaders that can be integrated into another program.
I once made an image viewer that would apply the effect, but it's not publicly released.
There is an extremely roundabout way to see the effect in action on a Linux system using a package you can apt-get. It involves installing RetroArch, starting the "Image Viewer" core, loading an image, loading the shader preset named "super-xbr-2p.glslp", changing the number of shaders from 3 to 2 to exclude the "custom Jinc resharper" step and selecting Apply, then scaling the window to be exactly 2x the size of the original image. You probably don't want to do this.
But if you really want a standalone program, I could build a Windows .NET program that will apply the shader to images you paste in from the clipboard.
That is very kind of you. But my statement was meant to be more general. I just have no time to dive into all the inevitable configure and compile issues anymore and am hoping that my Linux distro will catch up some day.
I once made an image viewer that would apply the effect, but it's not publicly released.
There is an extremely roundabout way to see the effect in action on a Linux system using a package you can apt-get. It involves installing RetroArch, starting the "Image Viewer" core, loading an image, loading the shader preset named "super-xbr-2p.glslp", changing the number of shaders from 3 to 2 to exclude the "custom Jinc resharper" step and selecting Apply, then scaling the window to be exactly 2x the size of the original image. You probably don't want to do this.
But if you really want a standalone program, I could build a Windows .NET program that will apply the shader to images you paste in from the clipboard.