Creating the dotted pattern for a thumbnail

I'm looking at the recent additions to this thread, and wondering if people are over complicating this, and even if that was not the case, they might be missing a chance to learn some basic tips and tricks about using Photoshop, which can be a lot of fun.

One way would be to build an array using Free Transform Step & Repeat.

Stamp down a single fully hard round brush on a new layer.

Copy the layer, and using the grid as a guide (Ctrl ') use Free Transform to move it to the next major grid intersection.

Now use Shift Ctrl Alt T which will repeat the last Free Transform making a new layer.

10 is a nice round number, so nudge the last one to be fully centred on the grid, and use Move > Align > Distribute to equally space the layers.

Merge those layers and repeat vertically to complete your array.

Step and repeat is super useful, and you'll think of all sorts of reasons to use it going forward. You could use it with an angle rather than linear offset to create numbers on a watch face, or the minute and hour marks.

Something else you could do is define it as a new Pattern.

Note that I still have the grid turned on, and an active selection exactly half wqay to the next major grid line.

This will result in the pattern being equally spaced.

A good way to use the patter, is with layer styles, because you can scale the pattern that way.

Layer styles need the layer to have content, but we can fix that latter, so just fill a new layer with a colour that will contrast the dot pattern.  I'll use red.

We don't want the red to show, so we get rid of that by setting fill opacity to zero.

Now it's easy to achive dotted pattern on your thumbnail. Just login to chatgpt and give a propt upload a picture and check the results boom !

Thanks really helped me a lot.

I would actually go into Illustrator, use one of the dot patterns built into the Illustrator Libraries, and drop it into PS - just another suggestion if you have access to Illustrator.

Altohugh I have not done this in adobe tools but still it looks pretty easy and convenient to do it. Pretty sure you can do it in multiple ways.

Once you created the element you can, depending on whether you created it as as Paths or pixels, create a Shape, Brush or Library Graphic that you can later on easily apply to multiple images, possibly via an Action or Script. 

There are lots of way to do this. I would probably use a dot pattern on a new layer, and then a mask to confine it to that shape. You can also use a shape layer with the triangle tool and fill it with a pattern.

 I was figuring out a workaround. But seemed to have hit a brick wall. What's the best way to remove the background while retaining the dots?