public static void VerifySimilarity <TPixelA, TPixelB>(
this ImageComparer comparer,
Image <TPixelA> expected,
Image <TPixelB> actual)
where TPixelA : unmanaged, IPixel <TPixelA>
where TPixelB : unmanaged, IPixel <TPixelB>
{
if (expected.Size() != actual.Size())
{
throw new ImageDimensionsMismatchException(expected.Size(), actual.Size());
}
if (expected.Frames.Count != actual.Frames.Count)
{
throw new ImagesSimilarityException("Image frame count does not match!");
}
ImageSimilarityReport report = comparer.CompareImages(expected, actual);
if ((report.TotalNormalizedDifference ?? 0F) != 0F)
{
throw new ImagesSimilarityException(report.ToString());
}
}
public static void VerifySimilarityIgnoreRegion <TPixelA, TPixelB>(
this ImageComparer comparer,
Image <TPixelA> expected,
Image <TPixelB> actual,
Rectangle ignoredRegion)
where TPixelA : unmanaged, IPixel <TPixelA>
where TPixelB : unmanaged, IPixel <TPixelB>
{
if (expected.Size() != actual.Size())
{
throw new ImageDimensionsMismatchException(expected.Size(), actual.Size());
}
if (expected.Frames.Count != actual.Frames.Count)
{
throw new ImagesSimilarityException("Image frame count does not match!");
}
ImageSimilarityReport report = comparer.CompareImages(expected, actual);
if ((report.TotalNormalizedDifference ?? 0F) != 0F)
{
IEnumerable <PixelDifference> outsideChanges = report.Differences.Where(
x =>
!(ignoredRegion.X <= x.Position.X &&
x.Position.X <= ignoredRegion.Right &&
ignoredRegion.Y <= x.Position.Y &&
x.Position.Y <= ignoredRegion.Bottom));
if (outsideChanges.Any())
{
var cleanedReport = new ImageSimilarityReport <TPixelA, TPixelB>(expected, actual, outsideChanges, null);
throw new ImagesSimilarityException(cleanedReport.ToString());
}
}
}
public static ImageSimilarityReport <TPixelA, TPixelB> CompareImages <TPixelA, TPixelB>(
this ImageComparer comparer,
Image <TPixelA> expected,
Image <TPixelB> actual)
where TPixelA : unmanaged, IPixel <TPixelA>
where TPixelB : unmanaged, IPixel <TPixelB> => comparer.CompareImages(expected, actual);