Cross Border

1. Open Photoshop. Open the image to apply cross border.

2. Select Rectangular Marquee Tool and make rectangular selection on the image.

3. Go to Channels tab. Create new channel.

Select > Feather (Radius: 7)

Fill white color and deselect the selection with CTRL+ D.

4. Filters > Brush Strokes > Sprayed Strokes

Stroke Length: 12
Spray Radius: 7
Stroke Direction: Right Diagonal

5. Go to Layers Tab and create new layer. Keep the new layer selected.

6. Select > Load Selection (Select Alpha1 from channel drop down and check Invert)

7. Fill white color using Alt + Del. and deselect with CTRL + D.