internal static IEnumerable<ImageSample> GetNegativeSamples(List<FileAccess.FileEntry> fileList, int numNegative) { var negatives = new ImageSample[numNegative]; var fileIter = fileList.GetEnumerator(); var intIter = new PermutedSequence(fileList.Max(entry => entry.Window.NumWindows)); try { intIter.MoveNext(); var i = 0; while (i < numNegative) { if (fileIter.MoveNext()) { if (fileIter.Current == null) continue; Rectangle rect; try { rect = fileIter.Current.Window.GetRectangle(intIter.Current); } catch (ArgumentOutOfRangeException) { continue; } if (!fileIter.Current.Rectangles.Any(rect.Overlaps)) { negatives[i] = new ImageSample(fileIter.Current.FileName, intIter.Current, fileIter.Current.Window); i++; } } else { fileIter.Dispose(); fileIter = fileList.GetEnumerator(); if (!intIter.MoveNext()) throw new CryptographicUnexpectedOperationException("Not enough integers."); } } return negatives; } finally { fileIter.Dispose(); intIter.Dispose(); } }
public bool FileEquals(ImageSample other) { return other != null && FileName.Equals(other.FileName); }