public static IEnumerable <string> InitLineSegmentation(AnnotateImageResponse data)
{
var yMax = CoordinateHelpers.GetYMax(data);
data = CoordinateHelpers.InvertAxis(data, yMax);
// The first index refers to the auto identified words which belongs to a sings line
var lines = data.TextAnnotations[0].Description.Split('\n');
// gcp vision full text
var rawText = new List <EntityAnnotation>();
for (int i = 1; i < data.TextAnnotations.Count; i++)
{
rawText.Add(data.TextAnnotations[i]);
}
// reverse to use lifo, because array.shift() will consume 0(n)
lines = lines.Reverse().ToArray();
rawText.Reverse();
var mergedArray = GetMergedLines(lines, rawText);
var boundingPolygon = CoordinateHelpers.GetBoundingPolygon(mergedArray);
var combinedPolygon = CoordinateHelpers.CombineBoundingPolygon(boundingPolygon);
return(ConstructLineWithBoundingPolygon(combinedPolygon));
}
