Test Pattern

11 Step Wedge

If your monitor is properly adjusted, each chequered square will have an
average intensity the same as the intensity of the wedge segment surrounding it.

Gamma 2.2 Dither

This patten should look like a flat grey on a properly adjusted monitor.

Ramps

Red, green and blue colour ramps. Check for uneven
steps, a common problem with cheap DACs.

Pretty Colours

Top view of the HSV colour hexacone


Normal colours	No red-green difference	Red-green Medusa