How to achieve a single-color "halftone" pattern?

[Donald J. Duck]

How to achieve this halftone texture like in the photo? I mean, how do you make a halftone pattern without it being made up of multiple CMYK colors? This is exactly what was done in this photo 🤷‍:signo_femenino:

(Applying a halftone texture doesn't solve the problem because the image is not converted to dots.)

[c.pfaffenbichler]

Not sure I understand what you mean. 

Have you tried both default Halftone Filters (as Smart Filters naturally)? 

What are your output-needs? RGB or actual CMYK? 

A work-around with Pattern Layers set to Blend Mode Hard Mix seems possible. 

Edit: 

[Donald J. Duck]

When I use the default halftone filter, it consists of dots of all three colors in any area of ​​the photo.

But in this photo, the pattern does not consist of dots of all three colors in any area of ​​the image:

 

[c.pfaffenbichler]

You could try Hard Mix Pattern Layers. 

[r-bin · Accepted solution]

When I use the default halftone filter, it consists of dots of all three colors in any area of ​​the photo.

But in this photo, the pattern does not consist of dots of all three colors in any area of ​​the image:

By @Donald J. Duck

Use this filter in Luminocity mode (or apply it to a copy of the layer that is in Luminocity mode).

[Stephen Marsh]

(or apply it to a copy of the layer that is in Luminocity mode).

By @r-bin

I agree, this looks like a luminosity blend of a CMYK halftone rosette pattern (not a single colour halftone stipple), over a standard contone image, not a conversion of a standard image directly to a halftone. One should also consider doing this in CMYK mode so that the halftone pattern is based on 4 channels, not 3. It can always be converted back to RGB afterwards.

[Donald J. Duck]

Use this filter in Luminocity mode

Thank you! This is the closest to the truth!
I applied a halftone pattern in the CMYK color space with a Luminosity overlay.

True, the colors quality deteriorates, but this is another issue that can be fixed (I don't know how yet)

[Stephen Marsh]

@Donald J. Duck – that's a strange pattern, not what I would expect from the original examples.

[Donald J. Duck]

Indeed, the halftone pattern here does not look the same as on the computer. Perhaps because I forgot to convert the image to RGB

[Stephen Marsh]

What were the exact steps taken?

[Donald J. Duck]

image > mode > cmyk > filter > pixelate > color halftone (105, 75, 90, 45)

then changed the blending mode of the halftone pattern smart filter to Luminosity

[Stephen Marsh]

Was the filter applied in RGB or CMYK mode?

Did you fade or blend at reduced opacity?

There is a more convoluted way to create better halftones, but it all depends on your requirements.

[Donald J. Duck]

Was the filter applied in RGB or CMYK mode?

CMYK

Did you fade or blend at reduced opacity?

Yes, I reduced the opacity of the pattern by 90%.

There is a more convoluted way to create better halftones, but it all depends on your requirements.

This is interesting. Where can I read about this way?

[Stephen Marsh]

Yes, I reduced the opacity of the pattern by 90%.

So the layer is only at 10% opacity? That is very low, I used 30% in my example.

This is interesting. Where can I read about this way?

By @Donald J. Duck

Bitmap mode is explained here:

https://helpx.adobe.com/au/photoshop/using/converting-color-modes.html

https://helpx.adobe.com/au/photoshop/using/color-modes.html

I have attached a layered PSD comparing the Color Halftone filter vs. Bitmap Mode conversion methods.

[Donald J. Duck]

So the layer is only at 10% opacity? That is very low, I used 30% in my example.

As you increase the transparency of the halftone smart filter, the image stops looking like it's made up of halftone dots and starts looking like it's been layered with a regular texture.

Bitmap mode is explained here:

https://helpx.adobe.com/au/photoshop/using/converting-color-modes.html

https://helpx.adobe.com/au/photoshop/using/color-modes.html

I have attached a layered PSD comparing the Color Halftone filter vs. Bitmap Mode conversion methods.

Thanks a lot for the sources!

[Lumigraphics]

You can also apply the filter to just one channel. Be advised that your mileage may vary and all that.

[Donald J. Duck]

How is this done?

[Trevor.Dennis]

I'm nopt seeing any halftone texture in your example images.

So long as your background colour iis white, you'll only have the foreground colour after using Sketch > Halftone.

If you use Image > Adjustments > Curves with a Smart Object, you can control the tonal range of the image making the Halftone texture visible across the entire image.  I just lifted the blacks to about 60 which gave me a trace of Halftone on the black jumper.

[Semaphoric]

It looks to me like these are printed pieces, scanned at high enough resolution to show the rosettes, but not high enough to resolve the individual dots.

[Donald J. Duck]

Yes, I allowed for this option. It seems true.

[Stephen Marsh]

On the right-hand side of the attached image, I have blended a 30% opacity luminosity mode of a CMYK halftone conversion over the top of the original RGB. Images may require a higher resolution to resolve a finer halftone frequency.