public async Task <SkySurveyImage> GetImage(string name, Coordinates coordinates, double fieldOfView, int width,
int height, CancellationToken ct, IProgress <int> progress)
{
fieldOfView = Math.Round(fieldOfView, 2);
var request = new Http.HttpDownloadImageRequest(
Url,
2000,
2000,
Astrometry.Astrometry.ArcminToDegree(fieldOfView),
coordinates.RADegrees,
coordinates.Dec
);
var image = await request.Request(ct, progress);
if (image.DpiX != 96)
{
image = ConvertBitmapTo96DPI(image);
}
image.Freeze();
return(new SkySurveyImage()
{
Image = image,
Name = name,
Source = nameof(Hips2FitsSurvey),
FoVHeight = fieldOfView,
FoVWidth = fieldOfView,
Rotation = 0,
Coordinates = coordinates
});
}
public async Task <SkySurveyImage> GetImage(string name, Coordinates coordinates, double fieldOfView, int width,
int height, CancellationToken ct, IProgress <int> progress)
{
var arcSecPerPixel = 0.4;
var targetFoVInArcSec = Astrometry.Astrometry.ArcminToArcsec(fieldOfView);
var pixels = Math.Min(targetFoVInArcSec / arcSecPerPixel, 2048);
if (pixels == 2048)
{
arcSecPerPixel = targetFoVInArcSec / 2048;
}
var request = new Http.HttpDownloadImageRequest(
Url,
coordinates.RADegrees,
coordinates.Dec,
pixels,
pixels,
arcSecPerPixel);
var image = await request.Request(ct, progress);
image.Freeze();
return(new SkySurveyImage()
{
Name = name,
Source = nameof(SkyServerSkySurvey),
Image = image,
FoVHeight = fieldOfView,
FoVWidth = fieldOfView,
Rotation = 0,
Coordinates = coordinates
});
}
protected override Task <BitmapSource> GetSingleImage(Coordinates coordinates, double fovW, double fovH, CancellationToken ct, int width, int height)
{
var request = new Http.HttpDownloadImageRequest(
Url,
coordinates.RADegrees,
coordinates.Dec,
fovW,
fovH
);
return(request.Request(ct));
}
public async Task <SkySurveyImage> GetImage(string name, Coordinates coordinates, double fieldOfView, int width,
int height, CancellationToken ct, IProgress <int> progress)
{
var arcSecPerPixel = 2;
fieldOfView = Math.Round(fieldOfView, 2);
var pixels = Math.Ceiling(Math.Min(Astrometry.Astrometry.ArcminToArcsec(fieldOfView) / arcSecPerPixel, 5000));
var request = new Http.HttpDownloadImageRequest(
Url,
coordinates.RADegrees,
coordinates.Dec,
Astrometry.Astrometry.ArcminToDegree(fieldOfView),
pixels
);
var image = await request.Request(ct, progress);
image.Freeze();
using (var bmp = NINA.Utility.ImageAnalysis.ImageUtility.BitmapFromSource(image, System.Drawing.Imaging.PixelFormat.Format8bppIndexed)) {
bmp.Palette = ImageAnalysis.ImageUtility.GetGrayScalePalette();
ImageStatistics stats = new ImageStatistics(bmp);
Histogram gray = stats.GrayWithoutBlack;
new Accord.Imaging.Filters.BrightnessCorrection(Math.Min(115 - gray.Median, 0)).ApplyInPlace(bmp);
new Accord.Imaging.Filters.ContrastCorrection((int)Math.Round(115 - gray.StdDev * 2)).ApplyInPlace(bmp);
image = ImageAnalysis.ImageUtility.ConvertBitmap(bmp, System.Windows.Media.PixelFormats.Gray8);
image.Freeze();
}
return(new SkySurveyImage()
{
Image = image,
Name = name,
Source = nameof(NASASkySurvey),
FoVHeight = fieldOfView,
FoVWidth = fieldOfView,
Rotation = 0,
Coordinates = coordinates
});
}
