Test	Description	Parameters
Alignment	Computes the location, orientation, and skew of the display; can compute the location of the housing that surrounds the display as well as  the pixel gap between the display and the housing	Specify edge strength, width, slope, and subsampling intervals
Pixel Defects	Detects defective rows, columns, or individual pixels	Specify the inspection pattern and intensity compensation
Contrast	Computes the average intensities of the black regions and the white regions of the display and then returns the difference between the mean black and mean white intensity values as the contrast of the display pixels	Use the border-size parameter to specify how many pixels near the region boundaries the test should omit from contrast measurement
Gray-Scale Illumination	Divides the inspection region into rectangular bins and computes the intensity statistics for each bin; user can specify the number of bins	Specify the number of regions to divide the display
Color Illumination	Divides the inspection region into rectangular bins and computes the color statistics for each bin; user can specify the number of bins in the inspection region and the color model used to compute the statistics	Choose measurements in the RGB (red, green, blue), HSL (hue, saturation, luminance), or CIE color spaces
Gross Defects	Locates, counts, and measures defects such as scratches and blemishes in an inspection region	Specify the size of the defects or ignore defects touching the boundary of the inspection
Housing Color	Compares the color of the display housing to a color template	Specify how sensitive the test is to the color information
Keypad Inspection	Searches areas in an image to verify that all keys on a keypad are present and of good quality	Choose to search for the keys within one inspection region or specify individual regions for each key