I suggest to work on CMYK support, the reason is simple. Most DTP workes and some photographers need to work most of the time in CMYK. Myself scan pictures directly to CMYK (better results). Converting pictures after in RGB and back to CMYK results in loosing colors. Therefore I think NI should work also on CMYK as well as RGB pictures. Can I expekt such improvement??
Maybe, but it is quite likely that the conversion will be necessary anyway to enable high noise reduction. Either you do it yourself and you see it, or it is done inside Neat Image and you don't see it - the conversion is still done. There may be ways to avoid it but the initial impression is that the conversion will be necessary.
We will consider this issue in our team. Thank you for the suggestion.
I don't know if the internal algorithm works with CMYK images but I bet it doesn't. What it could do is to, internally, convert the image to RGB (or Lab) in order to perform the calculations but affect the image in CMYK when doing the noise removal process.
Yes, of course, as I wrote above, we could do that internally in the plug-in, or you could do that using PS functions knowing that the plug-in will anyway have to work with RGB data, not CMYK.
Converting the image to/from RGB or CMYK using Photoshop implies loosing colors in the process.
Doing it internally inside the plug-in would only perform the conversion for data analysis. The only "color change" would occur in the "noise reduction" process.