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Can I set the dimensions of a pixel when I pixelate/mosaic an image?

Forum|Forum|2 years ago
April 15, 2023
2 respuestas
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Hi,

Really hoping someone can help...

I want to put an illustrated vector image into Photoshop and pixelate it so each individual pixel is 10mm x 10mm. I then want to put printable gridlines over the top of which I have found a youtube tutorial to then print out in sections and then lay actual mosaic tiles over the top creating a pixel mosaic. please see the image attached for an example of what it looks like to give you a better understanding of what I'm trying to achieve.

When i go to pixelate image it just says change size of cell? Im confused

macOS

Este tema ha sido cerrado para respuestas.

Myra Ferguson

Community Expert

In Photoshop, you can use the Mosaic filter (Filter > Pixelate > Mosaic...). However, the cell size refers to pixels and not millimeters. The cell size field only takes integers between 2 and 200. So if you did a conversion from millimeters to pixels (1 mm = 3.7795275591 pixels), then you'd have to round it (10 x 3.7795275591 = 37.795275591 which would be 38 pixels).

D

daniel25752277lbhwAutor

Participating Frequently

Okay thanks for the insight, its appreciated!

Myra Ferguson

Community Expert

You're very welcome. 🙂

jane-e

Community Expert

I want to put an illustrated vector image into Photoshop and pixelate it so each individual pixel is 10mm x 10mm.
By @daniel25752277lbhw

Someone else will probably chime in, but in Illustrator you go to Object > Create Object Mosaic. You may have to do some math to convert "number of tiles" to 10mm x 10mm.

Jane

D

daniel25752277lbhwAutor

Participating Frequently

Hi,

Thank you, this helps!

So the actual space I will need it to adhere to is 1780mm x 1320mm so will that be 1780 tiles x 1320 tiles? But that doesnt solve setting the tile size to 10mm x 10mm? 😕😕

jane-e

Community Expert

@daniel25752277lbhw

Hi Daniel,

I don't know how big mm is, as my country tried to use them for a couple of years, then gave up. You'll have to do the math to figure out number of tiles. Or use trial and error. Choose something and look at the size of the tile, then choose something else.

I was about to come back to add some things:

If it's vector, your will need to rasterize it befor you use Create Object Mosaic
By default, it will keep the original, so hide and lock it
It creates a group of the tiles
Your title is "Can I set the dimensions of a pixel when I pixelate/mosaic an image?"
Raster images are made of pixels, which you can see when you zoom in. I think you mean "tiles", not "pixels" here. You can set the dimension of pixels when you print by saying you want 10 pixels per inch (10 ppi), 72 pixels per inch (72 ppi), 300 pixels per inch (300 ppi), etc., but that only applies to raster when printed.
In my example, one tile is 30.2 pt x 26.4 pt.

And now I have an idea, but let me test it first.

Jane

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