private void ApplyAlgorithmToGroup()
{
_groupReporting = true;
string[] names = openFileDialog.FileNames;
int processedCount = 0;
double averageCompression = 0;
double averageAccuracy = 0;
double averageCompressingTime = 0;
double averageDecompressingTime = 0;
for (int i = 0; i < names.Length; i++)
{
try
{
_originalImage = new MemoryStream(File.ReadAllBytes(names[i]));
Del del = tsmApplyAlgorithm_Click;
this.Invoke(del, null, null);
averageCompression += _compression;
averageAccuracy += ImageComparator.CalculateImagesEquality(_originalImage, _resultImage);
averageCompressingTime += _compressingTime;
averageDecompressingTime += _decompressingTime;
processedCount++;
}
catch
{
}
this.rtbStatistic.BeginInvoke((MethodInvoker)
(() => this.rtbStatistic.Text = $"Processed images: {processedCount}"));
this.progressBarGroupProcessing.BeginInvoke((MethodInvoker)
(() => this.progressBarGroupProcessing.Value = (int)(i * 1000.0 / names.Length)));
}
averageCompression /= processedCount;
averageAccuracy /= processedCount;
averageCompressingTime /= processedCount;
averageDecompressingTime /= processedCount;
string report = MakeGroupReport(processedCount, averageCompression, averageAccuracy,
averageCompressingTime, averageDecompressingTime);
this.rtbStatistic.BeginInvoke((MethodInvoker)
(() => this.rtbStatistic.Text = report));
this.progressBarGroupProcessing.BeginInvoke((MethodInvoker)
(() => this.progressBarGroupProcessing.Value = 0));
Thread.Sleep(300);
_groupReporting = false;
GC.Collect();
}
private string MakeReport(Stream parCompressedImage)
{
StringBuilder report = new StringBuilder();
report.AppendLine(String.Format("Original image size: {0} bytes", _originalImage.Length));
report.AppendLine(String.Format("Compressed image size: {0} bytes", parCompressedImage.Length));
report.AppendLine(String.Format("Decompressed image size: {0} bytes", _resultImage.Length));
report.AppendLine(String.Format("Total compression: {0}%", _compression));
report.AppendLine(String.Format("Algorithm: {0}", _algorithm));
report.AppendLine(String.Format("Parameters: {0}", _algorithmParameters));
double accuracy = ImageComparator.CalculateImagesEquality(_originalImage, _resultImage);
report.AppendLine(String.Format("Accuracy: {0}%", accuracy * 100));
report.AppendLine(String.Format("Compressing time: {0} ms", _compressingTime));
report.Append(String.Format("Decompressing time: {0} ms", _decompressingTime));
return(report.ToString());
}
