For example if I use Watercolor filter for a big size image (ex: 6000 x 8000), the paint strokes are too small. Is it possible to increase them?
If you have already exhausted the maximum size in the filter settings, then no, there's no way to expand them even further. You will have to work on a lower res version of your image and then somehow scale it up or at least use a scaled up version to overlay it with blending modes to transfer the structure.
Thanks for replying. I already tried to work on a low res version and then scale it up but then, we can see the shape of the pixels.. I also tried the second option but didn t get what I want.
I m really surprised there is no way do such simple thing on Photoshop...