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This is a grid pattern created in my country in the sixties, taking binary values for lights and shadows. I couldn't find this anywhere else, or maybe I'm not using the proper words for it. The literal translation would be something like photohatch but couldn't find anything like this. We did this in design school (this is before computers) as an analogic exercise

Anyways, take a look to the pictures and let me know if there's a way to do this in an automated way

enter image description here enter image description here

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    I don't see anything that resembles a hatch pattern. Maybe there's a language problem here? When you speak of a "hatch pattern" - this is what comes to my mind. I think the word you might be looking for is a "grid", or even "pixelated". – Billy Kerr May 15 at 20:01
  • thank you. Yes, tehre's a language barrier, the literal translation from Spanish is hatch, but you're correct, it's a grid. Either way still couldn't find it (but edited the post accordingly) – Devin May 15 at 21:09
  • @user287001, black and white squares are black and white. Black dot over white square is a lighter gray, white dot on black square respresents darker grey shadows – Devin May 15 at 21:10
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You say the pattern is binary, but in fact it consists of 4 different "tones":

Create a pattern for each of the middle tones (with the circles) by making a selection and choosing Edit > Define Pattern. (In this example I've made the squares 32x32 px)

Convert the image you want to transform to grayscale and scale it down to a fitting size.

Let's take this image of a monkey skull by Didier Desouens (CC BY-SA 4.0), scale and crop it down to 36x36 px.

Then upscale the image by 3200% using Nearest Neigbor interpolation.

Now each pixel is the same size as the pattern squares: 32x32px.

Use Image > Adjustments > Posterize to reduce the image to consist of 4 levels.

Use Magic Wand with Anti-alias and Contigous ticked off and click one of the dark gray pixels. Add a Pattern Fill layer and select the dark square with a white circle.

Then click one of the light gray pixels and add a Pattern Fill layer with the white square with the black circle.

You can make another pattern to create a grid and get this final result:

| improve this answer | |
  • wow, amazing, thank you Wolf! – Devin May 15 at 21:45

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