This effect was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
This filter will create an adjustable grid over your image and allow the option of a frame. Controls include colors, density, opacity, border width, frame width and size. Certain settings will even render a "plaid" effect, as seen in the first preset.
The nice thing with this filter, the hue of the image tends to match the border colors!
Have fun!
Thank you!
Grid Frame Border Hue Enhance Plaid