unique colors v4

The main interest of this concept is that the unique colors/pixels of the original image/photo remain strictly unchanged !

Original image (resized) :
4096x4096
1,078,736 unique colors
15,698,480 duplicated colors

In the same collection :
WITHOUT SOFTWARE (beta)
unique colors v1
unique colors v2
unique colors v3
unique colors v3 (bis)
unique colors v4