This puzzle belongs to the puzzle series: hyper-modern art
The two friends in the gallery of hyper-modern art are moving on to the next room.
"My head still aches from the colourful pixels under this microscope. Could we take a little rest please?"
"Sure. Let's sit down here for a moment and rest our eyes on this rather simple black and white painting. It's somehow peaceful, don't you think?"
"Hmm, sort of. What is it called?"
"What would you call it?"
"Not sure. Maybe
Autumn storm in hiragana ?"
"Good one! No, it is actually called:
The code to the next room."
"Really? I wonder if it really is that."
"Of course it is! Have you forgotten how hyper-modern art works? In fact, we can only get into the next room if we enter the code into the number pad over there, see? Unfortunately, our HUD does not work in this room, so we'll have to figure it out ourselves..."
The goal of this puzzle is to derive the number code from the picture and describe how it can be gained. The story text is just flavour. The puzzle can be solved from the image alone and it could be solved from a printed version of that image.
There is a unique solution, so please don't answer with "I can see xy"-type answers. The solution has to contain both the number code and technique how to find it.