After optimizing, PTGui shows me the average control point distance. What distance should I aim for?
The control point distance indicates how well a control point pair aligns in the panorama. When the distance is zero, the two points of a control point pair overlap exactly. One should aim for the lowest control point distance possible, but the actual lowest distance that can be achieved depends on many factors. In general if your images were shot properly using a tripod with calibrated panorama head, a control point distance well below 5 should be achievable. Most remaining misalignments can usually be masked by the blender. An average distance higher than 5 usually indicates a problem, see Q5.4 for solutions. It’s particularly important to look at ‘outliers’: if a control point has a distance of 20 while the average is below 5, this control point might have been placed on a moving object, or on a similar feature close to the proper location. Use the ‘Delete worst control points’ function (in the Control Points menu) to remove such outlying control points.
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- After optimizing, PTGui shows me the average control point distance. What distance should I aim for?
