Thanks, David, I would have replied sooner, but I have been rather distracted by using the improvements to denoise to update my denoise filter.
A guide image is great because previously I was applying processing before the denoising and then reversing the process after. One of the things I discovered I prefer is doing chroma denoising by desaturating a certain amount first and then undoing that afterwards, unfortunately you can’t desaturate it 100% otherwise it won’t work. A guide image solves all of those problems.
And now that denoise is parallelised that makes things easier than using apply_parallel etc.
