protected ActionResult GetImage(IImageQuery imageQuery, long id, Func <byte[], byte[]> imageModifier = null)
{
if (IdValidator.IsInvalid(id))
{
return(new EmptyResult());
}
byte[] image = imageQuery.GetImageById(id);
return(ImageToFile(imageModifier, image));
}
public ImgurImageSource(IImageQuery query, CancellationToken cancelToken)
{
_query = query;
_queryResolver = new ImgurQueryResolver();
QueueLoadOfCachedFiles();
StartDownloadingImages(cancelToken);
}
private void QueryBinaryAlgo(IImageQuery imageQuery, string queryImagePath, object setting)
{
btnSelectQueryImage.IsEnabled = false;
btnQueryImage.IsEnabled = false;
var disphacher = this.Dispatcher;
WriteQueryStatus("Start querying...");
List <ImageRecord> searchImage = new List <ImageRecord>();
System.Threading.Tasks.Task queryTask = System.Threading.Tasks.Task.Factory.StartNew(
() =>
{
_stopWatch = Stopwatch.StartNew();
searchImage = imageQuery.QueryImage(queryImagePath, setting);
_stopWatch.Stop();
return(new
{
SearchImage = searchImage,
TimeLapse = _stopWatch.ElapsedMilliseconds
});
});
System.Threading.Tasks.Task waitTask = System.Threading.Tasks.Task.Factory.StartNew(
() =>
{
//const int incr = 1;
//int t = incr; string msg = "";
//while (!queryTask.Wait(incr * 500))
//{
// msg = string.Format("Query is taking more than {0} second...", t);
// WriteQueryStatus(msg);
// t += incr;
//}
queryTask.Wait();
disphacher.Invoke((Action)(() =>
{
ImageList.ItemsSource = searchImage;
lblTotalCount.Text = searchImage.Count.ToString();
lblQueryStatus.Text = string.Format("Image Query Completed, it took {0} ms", _stopWatch.ElapsedMilliseconds);
btnSelectQueryImage.IsEnabled = true;
btnQueryImage.IsEnabled = true;
}));
});
}
public Task <IImageQueryResult> ExecuteQuery(IImageQuery imageQuery, CancellationToken cancelToken)
{
return(Task.Run(async() =>
{
var result = new ImgurQueryResult();
try
{
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
//var url = @"https://api.imgur.com/3/gallery/search/top//1";
var url = $@"https://api.imgur.com/3/gallery/search//{_page}";
var query = FormatQueryString(Tuple.Create("q", imageQuery.QueryString));
client.DefaultRequestHeaders.Add("Authorization", ImgurClientToken);
_page++;
using (HttpResponseMessage response = await client.GetAsync($"{url}{query}"))
{
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
JObject json = JObject.Parse(responseBody);
result.Parse(json);
}
}
}
catch (Exception ex)
{
System.Console.WriteLine(ex.ToString());
}
return result as IImageQueryResult;
}));
}
/// <summary>
/// Construct a WebImageFinder using the specified IImageQuery provider
/// </summary>
public WebImageFinder(IImageQuery provider)
{
_queryProvider = provider;
}
private void QueryBinaryAlgo(IImageQuery imageQuery, string queryImagePath, object setting)
{
btnSelectQueryImage.IsEnabled = false;
btnQueryImage.IsEnabled = false;
var disphacher = this.Dispatcher;
WriteQueryStatus("Start querying...");
List<ImageRecord> searchImage = new List<ImageRecord>();
System.Threading.Tasks.Task queryTask = System.Threading.Tasks.Task.Factory.StartNew(
() =>
{
_stopWatch = Stopwatch.StartNew();
searchImage = imageQuery.QueryImage(queryImagePath, setting);
_stopWatch.Stop();
return new
{
SearchImage = searchImage,
TimeLapse = _stopWatch.ElapsedMilliseconds
};
});
System.Threading.Tasks.Task waitTask = System.Threading.Tasks.Task.Factory.StartNew(
() =>
{
//const int incr = 1;
//int t = incr; string msg = "";
//while (!queryTask.Wait(incr * 500))
//{
// msg = string.Format("Query is taking more than {0} second...", t);
// WriteQueryStatus(msg);
// t += incr;
//}
queryTask.Wait();
disphacher.Invoke((Action)(() =>
{
ImageList.ItemsSource = searchImage;
lblTotalCount.Text = searchImage.Count.ToString();
lblQueryStatus.Text = string.Format("Image Query Completed, it took {0} ms", _stopWatch.ElapsedMilliseconds);
btnSelectQueryImage.IsEnabled = true;
btnQueryImage.IsEnabled = true;
}));
});
}
private void QueryImage(string queryImagePath)
{
try
{
ImageList.ItemsSource = null;
if (!string.IsNullOrEmpty(queryImagePath))
{
object setting = null;
QueryImageFullPath = queryImagePath;
IImageQuery imageQuery = null;
switch (SelectedAlgo)
{
case emAlgo.Undetermined:
MessageBox.Show("Please select Algorithm for indexing");
return;
case emAlgo.pHash:
imageQuery = new pHashQuery();
QueryBinaryAlgo(imageQuery, queryImagePath, setting);
break;
case emAlgo.RBGHistogram:
imageQuery = new RGBProjectQuery();
QueryBinaryAlgo(imageQuery, queryImagePath, setting);
break;
case emAlgo.bhattacharyya:
imageQuery = new BhattacharyyaQuery();
QueryBinaryAlgo(imageQuery, queryImagePath, setting);
break;
case emAlgo.CEDD:
emCEDDAlgo selectedCeddAlgo = GetSelectedCEDDAlgo();
if (selectedCeddAlgo == emCEDDAlgo.BKTree)
{
imageQuery = new CEDDQuery2();
}
else
{
imageQuery = new CEDDQuery();
}
int goodMatchDistance = nudCEDDGoodMatchThreshold.Value.Value;
QueryBinaryAlgo(imageQuery, queryImagePath, goodMatchDistance);
break;
case emAlgo.SURF:
case emAlgo.AccordSurf:
case emAlgo.Locate:
QueryBgWorker.RunWorkerAsync();
break;
default:
MessageBox.Show("Algorithm not currently supported");
return;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error in Image Query", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
/// <summary>
/// Construct a WebImageFinder using the specified IImageQuery provider
/// </summary>
public WebImageFinder(IImageQuery provider)
{
_queryProvider = provider;
}
