// Mouse cursor's position has changed within histogram control private void histogramControl_PositionChanged(object sender, Accord.Controls.HistogramEventArgs e) { if (histogram != null) { int pos = e.Position; if (pos != -1) { textBox.Text = string.Format("Value: {0} Count: {1} Percent: {2:F2}", pos, histogram.Values[pos], ((float)histogram.Values[pos] * 100 / histogram.TotalCount)); } else { textBox.Text = string.Empty; } } }
// Selection has changed within histogram control private void histogramControl_SelectionChanged(object sender, Accord.Controls.HistogramEventArgs e) { if (histogram != null) { int min = e.Min; int max = e.Max; int count = 0; // count pixels for (int i = min; i <= max; i++) { count += histogram.Values[i]; } textBox.Text = string.Format("Values: {0}...{1} Count: {2} Percent: {3:F2}", min, max, count, ((float)count * 100 / histogram.TotalCount)); } }