public PreviewFeature(string name, CWatchZone watchZone, CWatcher watcher, CWatchImage watchImage)
{
Name = name;
WatchZone = watchZone;
Watcher = watcher;
WatchImage = watchImage;
}
private static void CompareAgainstFeature(
ref double[] deltas,
ref double[] benchmarks,
DateTime now,
IMagickImage fileImageComposed,
CWatcher cWatcher,
CWatchImage cWatchImage)
{
if (!cWatchImage.IsPaused(now))
{
var benchmark = TimeStamp.Now;
using (var fileImageCompare = fileImageComposed.Clone())
using (var deltaImage = cWatchImage.MagickImage.Clone())
{
if (cWatchImage.HasAlpha)
{
fileImageCompare.Composite(cWatchImage.AlphaChannel, CompositeOperator.Over);
}
SetDelta(ref deltas, fileImageCompare, deltaImage, cWatcher, cWatchImage);
SetBenchmark(ref benchmarks, benchmark, cWatchImage);
}
}
else
{
deltas[cWatchImage.Index] = double.NaN;
benchmarks[cWatchImage.Index] = 0;
}
}
private static void SetDelta(
ref double[] deltas,
IMagickImage fileImageCompare,
IMagickImage deltaImage,
CWatcher cWatcher,
CWatchImage cWatchImage)
{
var metricResult = fileImageCompare.Compare(deltaImage, cWatcher.ErrorMetric);
deltas[cWatchImage.Index] = cWatcher.ErrorMetric.Standardize(
cWatchImage.MetricUpperBound,
metricResult,
cWatchImage.TransparencyRate);
}
private static void SetBenchmark(ref double[] benchmarks, TimeStamp timeStamp, CWatchImage cWatchImage)
{
benchmarks[cWatchImage.Index] = (TimeStamp.Now - timeStamp).TotalSeconds;
}
