1, create a new file, set the size of 200x200,72dpi, with the text tool input a letter, I used the 255point size, as shown in the figure.
2, create a new layer, fill with white, and then use the filter filter>render>difference clouds.
3. Let's add some contrast to the graph. Select Menu Image>adjust>auto levels.
4, now, hold down Ctrl-click the text layer, and then reverse the selection, menu Select>inverse, or shortcut ctrl+shift+i. Then press the DEL key, as shown in the picture.
5. OK, let's add some depth to it and give it a shadow effect. Select Menu Layer>effects>drop Shadow, using the following settings: mode:multiply opacity:100% angle:120 distance:3 blur:5.
6, add some miscellaneous point effect, use filter filter>noise>add noise, set amount to 10, select Gaussian blur Gaussian Blur and monochromatic monochrome.
7, Good! Now we need another layer and it creates a superposition effect, we first create a new layer, and then hold down the CTRL key to import the selection of the text layer, fill with white, and then use the filter filter>noise>add noise, set amount to 250, Select Gaussian blur Gaussian Blur and monochromatic monochrome.