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 ComposeScan(
ref double[] deltas,
ref double[] benchmarks,
DateTime now,
Bitmap fileImageCropped,
Bitmap prevFileImageCropped,
CWatcher cWatcher)
{
if (!cWatcher.IsPaused(now))
{
using (var fileImageComposed = GetComposedImage(fileImageCropped, cWatcher.Channel, cWatcher.ColorSpace))
using (var prevFileImageComposed = GetComposedImage(prevFileImageCropped, cWatcher.Channel, cWatcher.ColorSpace))
{
if (cWatcher.Equalize)
{
fileImageComposed.Equalize();
prevFileImageComposed?.Equalize();
}
if (cWatcher.IsStandard)
{
foreach (var cWatchImage in cWatcher.CWatchImages)
{
CompareAgainstFeature(ref deltas, ref benchmarks, now, fileImageComposed, cWatcher, cWatchImage);
}
}
else if (cWatcher.IsDuplicateFrame)
{
CompareAgainstPreviousFrame(ref deltas, ref benchmarks, now, fileImageComposed, prevFileImageComposed, cWatcher);
}
else
{
throw new NotImplementedException("How'd you get here?");
}
}
}
else
{
foreach (var cWatchImage in cWatcher.CWatchImages)
{
deltas[cWatchImage.Index] = double.NaN;
benchmarks[cWatchImage.Index] = 0;
}
}
}
private static void CompareAgainstPreviousFrame(
ref double[] deltas,
ref double[] benchmarks,
DateTime now,
IMagickImage fileImageComposed,
IMagickImage prevFileImageComposed,
CWatcher cWatcher)
{
var cWatchImage = cWatcher.CWatchImages[0];
if (!cWatchImage.IsPaused(now) && prevFileImageComposed != null)
{
var benchmark = TimeStamp.Now;
SetDelta(ref deltas, fileImageComposed, prevFileImageComposed, cWatcher, cWatchImage);
SetBenchmark(ref benchmarks, benchmark, cWatchImage);
}
else
{
deltas[cWatchImage.Index] = double.NaN;
benchmarks[cWatchImage.Index] = 0;
}
}
