} // SubsetJsonDetectorOutputbyQuery
private JsonData SubsetJsonDetectorOutputbyConfidence(JsonData data, SubsetJsonDetectorOutputOptions options)
{
if (options.ConfidenceThreshold == -1)
{
return(data);
}
var imagesIn = data.images;
List <Image> imagesOut = new List <Image>();
long count = 0;
int maxChanges = 0;
long totalCount = imagesIn.Count();
string progressMsg = string.Empty;
int[] progressPercentagesForDisplay = { 10, 20, 40, 80, 100 };
progressMsg = string.Format("Subsetting by confidence >= {0}", options.ConfidenceThreshold.ToString());
foreach (var item in imagesIn)
{
count++;
int percentage = SharedFunctions.GetProgressPercentage(count, totalCount);
if (progressPercentagesForDisplay.Contains(percentage))
{
SetLabelProgressMsg(progressMsg, count, totalCount, ProgressBarStyle.Blocks);
}
dynamic p;
dynamic pOrig = item.max_detection_conf;
List <Detection> detections = new List <Detection>();
// detections = [d for d in im['detections'] if d['conf'] >= options.confidence_threshold]
// Find all detections above threshold for this image
foreach (var d in item.detections)
{
dynamic conf = d.conf;
if (conf >= options.ConfidenceThreshold)
{
detections.Add(d);
}
}
// If there are no detections above threshold, set the max probability
// to -1, unless it already had a negative probability.
if (detections.Count == 0)
{
if (pOrig <= 0)
{
p = pOrig;
}
else
{
p = -1;
}
}
// Otherwise find the maximum confidence
else
{
p = -1;
foreach (var c in detections)
{
dynamic confidence = c.conf;
if (confidence > p)
{
p = confidence;
}
}
}
item.detections = detections.ToArray();
// Did this thresholding result in a max-confidence change?
if (Math.Abs(pOrig - p) > 0.00001)
{
// We should only be *lowering* max confidence values (i.e., making them negative)
if (!(pOrig <= 0 || p < pOrig))
{
string errmsg = string.Format("Confidence changed from {0} to {1}", pOrig, p);
// This will get handled by the UI
throw new Exception(errmsg);
}
maxChanges += 1;
}
item.max_detection_conf = p;
imagesOut.Add(item);
} // for each image
data.images = imagesOut;
SetStatusMessage(string.Format("Finished confidence search, found {0} matches (of {1}), {2} max conf changes", data.images.Count().ToString(),
imagesIn.Count().ToString(), maxChanges.ToString()));
return(data);
} // SubsetJsonDetectorOutputbyConfidence
} // SubsetJsonDetectorOutputMain
private JsonData SubsetJsonDetectorOutputbyQuery(JsonData data, SubsetJsonDetectorOutputOptions options)
{
// Subset to images whose filename matches options.query; replace all instances of
// options.query with options.replacement.
string progressMsg = string.Empty;
var imagesIn = data.images;
List <Image> imagesOut = new List <Image>();
long count = 0;
int percentage = 0;
long totalCount = imagesIn.Count();
int[] progressPercentagesForDisplay = { 10, 20, 40, 80, 90, 100 };
progressMsg = string.Format("Subsetting by query {0}, replacement {1} ...", options.Query, options.Replacement);
SetLabelProgressMsg(progressMsg, ProgressBarStyle.Marquee);
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
foreach (var image in imagesIn)
{
count++;
string file = image.file.ToString();
if (!string.IsNullOrEmpty(options.Query) && !file.Contains(options.Query))
{
continue;
}
if (!string.IsNullOrEmpty(options.Replacement))
{
if (!string.IsNullOrEmpty(options.Query))
{
file = file.Replace(options.Query, options.Replacement);
}
else
{
file = options.Replacement + file;
}
}
percentage = SharedFunctions.GetProgressPercentage(count, totalCount);
if (progressPercentagesForDisplay.Contains(percentage))
{
progressMsg = string.Format("Subsetting by query {0}, replacement {1} processed {2} of {3}...",
options.Query, options.Replacement, count.ToString(), totalCount.ToString());
SetLabelProgressPercentageMsg(progressMsg, count, totalCount, ProgressBarStyle.Blocks);
}
image.file = file;
imagesOut.Add(image);
} // for each image
data.images = imagesOut;
SetStatusMessage(string.Format("Finished query search, found {0} matches (of {1})", data.images.Count(), imagesIn.Count()));
stopwatch.Stop();
Console.WriteLine(stopwatch.Elapsed.TotalSeconds.ToString());
return(data);
} // SubsetJsonDetectorOutputbyQuery
