Please someone tell me how to get this texture!

[masonpelton]

[c.pfaffenbichler]

[c.pfaffenbichler]

Might be an overlaid reaction diffusion pattern, though reproducing the exact pattern might be a problem.

Google should provide links to tutorials under »photoshop reachtion diffusion«.

Such a Pattern could then be used as a Pattern Layer set to Blend Mode Hard Mix over a monochrome image.

[Chuck Uebele]

Ohhh, this is fun!

[c.pfaffenbichler]

What, is it the 60s again?

[Chuck Uebele]

Yea, why not.

[c.pfaffenbichler]

For white edges you could use an Inner Glow Layer Style.

[Chuck Uebele]

Couldn't resist making more automated than an action. No error checking, so you have to be careful what you enter.

#target photoshop
var doc = activeDocument
var hipass 
var thresh 
var gBlur 
var gBlur
var num 
var dlg = new Window('dialog','Reaction Diffusion');
    dlg.alignChildren = ['left','top'];
    dlg.hiGp = dlg.add('group');
    dlg.hiGp.stxt = dlg.hiGp.add('statictext',undefined,'Hipass Radius');
    hipass = dlg.hiGp.add('edittext',undefined,10);
    dlg.hiGp = dlg.add('group');
    dlg.hiGp.stxt = dlg.hiGp.add('statictext',undefined,'Threshold');
    thresh = dlg.hiGp.add('edittext',undefined,128);    
    dlg.blGp = dlg.add('group');
    dlg.blGp.stxt = dlg.blGp.add('statictext',undefined,'Blur Radius');
    gBlur = dlg.blGp.add('edittext',undefined,11);   
    dlg.numGp = dlg.add('group');
    dlg.numGp.stxt = dlg.numGp.add('statictext',undefined,'Number of iterations');
    num = dlg.numGp.add('edittext',undefined,90);    
    dlg.btn = dlg.add('button',undefined,'Okay');
    dlg.btn.onClick = function(){dlg.close()};
    dlg.show();
for(var i=0;i<parseInt(num.text);i++){
    reaction ();
    }
var idThrs = charIDToTypeID( "Thrs" );
    var desc9 = new ActionDescriptor();
    var idLvl = charIDToTypeID( "Lvl " );
    desc9.putInteger( idLvl, parseFloat(thresh.text) );
executeAction( idThrs, desc9, DialogModes.ALL );   
app.displayDialogs = DialogModes.NO; 
function reaction(){
// =======================================================
    var idHghP = charIDToTypeID( "HghP" );
        var desc5 = new ActionDescriptor();
        var idRds = charIDToTypeID( "Rds " );
        var idPxl = charIDToTypeID( "#Pxl" );
        desc5.putUnitDouble( idRds, idPxl, parseFloat(hipass.text ));
    executeAction( idHghP, desc5, DialogModes.NO );    
// =======================================================
var idThrs = charIDToTypeID( "Thrs" );
    var desc9 = new ActionDescriptor();
    var idLvl = charIDToTypeID( "Lvl " );
    desc9.putInteger( idLvl, parseFloat(thresh.text) );
executeAction( idThrs, desc9, DialogModes.NO );   
// =======================================================
var idGsnB = charIDToTypeID( "GsnB" );
    var desc13 = new ActionDescriptor();
    var idRds = charIDToTypeID( "Rds " );
    var idPxl = charIDToTypeID( "#Pxl" );
    desc13.putUnitDouble( idRds, idPxl, parseFloat(gBlur.text) );
executeAction( idGsnB, desc13, DialogModes.NO );
    }

[Trevor.Dennis · Accepted solution]

50% grey

Filter > Artisitic > Sponge

Threshold, or levels or curves (I went with Threashold)

Some Gausian blur to smooth it up a bit, followed by levels, curves or threashold again.  I actually gave it a low value Gassian blur after this to give it some antialiasing.

Scale it to suite, which means start with a big canvas if you want to end up with a tighter pattern.

[masonpelton]

Thanks guys for all the replies and help