12-02-2018, 09:19 PM
IMHO the diagonals in the first have been put in it on purpose.
In the second one the rainbow is a likely moiré effect. One way to mitigate it:
- add a transparent layer, set to Saturation mode (towards the bottom of the list)
- paint on in white over the areas where the rainbow is the most visible (mountain, lighthouse)
- this will lighten the area a bit, you can adjust the opacity of that layer (the more transparent, the close you are to the initial picture, but at around 50% you don't lighten much and the rainbow is hardly noticeable
In the second one the rainbow is a likely moiré effect. One way to mitigate it:
- add a transparent layer, set to Saturation mode (towards the bottom of the list)
- paint on in white over the areas where the rainbow is the most visible (mountain, lighthouse)
- this will lighten the area a bit, you can adjust the opacity of that layer (the more transparent, the close you are to the initial picture, but at around 50% you don't lighten much and the rainbow is hardly noticeable