Framework Differences

Framework differences between OMI and CVL summarizes the differences between OMI and CVL:

Parameter

OMI

CVL

Acceptance threshold

The default is 30.

The default is 0.5.

Aspect ratio

The range is 500 to 2000. The default is 1023 for the default camera.

Range from 0.0 to 1.0.

Center of the symbol

The row and column offsets from the top left to the screen to the center.

X-coordinate of the center of the symbol is the column offset from the top left of the screen to the center.

Y-coordinate of the center of the symbol is the row offset from the top left of the screen to the center.

Centering

Dynamically updates the scale and orientation of the model by resetting the angle and scale values to those of the last symbol found. Compensates for progressive change in angle or scale.

Not supported

Confusion threshold

The default is 70.

The default is 0.7.

Contrast

Range from 0 to 100%.

Contrast threshold expressed as a percentage.

Range from 0.0 to 1.0.

Contrast threshold expressed as a fraction.

Scale

Scale is a percentage of the model size. The scale factor can vary from 80 to 150 percent, with the original model being 100 percent.

Scale is a fraction of the model size and must be greater than 0.0.

Framework differences between OMI and CVL