private void OnExecute()
{
var tileWidth = Int32.Parse(Tiles.Split("x")[0]);
var tileHeight = Int32.Parse(Tiles.Split("x")[1]);
var rect = new SixLabors.Primitives.Rectangle(0, 0, tileWidth, tileHeight);
using (var img = Image.Load(Input))
{
var index = 0;
var stepX = img.Width / tileWidth;
var stepY = img.Height / tileHeight;
var dir = Output ?? System.Environment.CurrentDirectory;
for (int y = 0; y < stepY; y++)
{
for (int x = 0; x < stepX; x++)
{
rect.X = x * tileWidth;
rect.Y = y * tileHeight;
using (var sub = img.Clone(ctx => ctx.Crop(rect)))
{
sub.Save(System.IO.Path.Combine(dir, $"image-{index}.png"));
}
index++;
}
}
}
}
public Image <Rgba32> GetBitmap()
{
if (PcsObjects.Count == 1)
{
return(SupDecoder.DecodeImage(PcsObjects[0], BitmapObjects[0], PaletteInfos));
}
var r = Rectangle.Empty;
for (var ioIndex = 0; ioIndex < PcsObjects.Count; ioIndex++)
{
var ioRect = new Rectangle(PcsObjects[ioIndex].Origin, BitmapObjects[ioIndex][0].Size);
r = r.IsEmpty ? ioRect : Rectangle.Union(r, ioRect);
}
var mergedBmp = new Image <Rgba32>(r.Width, r.Height);
for (var ioIndex = 0; ioIndex < PcsObjects.Count; ioIndex++)
{
var offset = PcsObjects[ioIndex].Origin - new Size(r.Location);
using (var singleBmp = SupDecoder.DecodeImage(PcsObjects[ioIndex], BitmapObjects[ioIndex], PaletteInfos))
{
mergedBmp.Mutate(b => b.DrawImage(singleBmp, offset, 0));
}
}
return(mergedBmp);
}
public Image <Rgba32> RenderAsGif(int width = 320, int height = 120)
{
using (var image = new Image <Rgba32>(width, height))
{
int margin = 7, barwidth = width / 5;
for (int i = 0; i < bitarray.Count; i++)
{
for (int cl = 1; cl >= 0; cl--)
{
int[] bits = this.bitarray[i];
bits[0] = cl;
using (var frame = new Image <Rgba32>(width, height))
{
for (int b = 0; b < 5; b++)
{
var color = bitarray[i][b] == 1 ? Rgba32.White : Rgba32.Black;
var bounds = new CoreRectangle(b * barwidth + margin, margin, barwidth - 2 * margin, height - 2 * margin);
frame.Mutate(x => x.Fill(color, bounds));
}
image.Frames.AddFrame(frame.Frames[0]);
}
}
}
return(image);
}
}
public void FillOffCanvas()
{
SixLabors.Primitives.Rectangle bounds = new SixLabors.Primitives.Rectangle(-100, -10, 10, 10);
Mock <IBrush <Rgba32> > brush = new Mock <IBrush <Rgba32> >();
Mock <Region> region = new Mock <Region>();
region.Setup(x => x.Bounds).Returns(bounds);
region.Setup(x => x.MaxIntersections).Returns(10);
region.Setup(x => x.Scan(It.IsAny <float>(), It.IsAny <float[]>(), It.IsAny <int>()))
.Returns <float, Span <float> >((y, span) =>
{
if (y < 5)
{
span[0] = -10f;
span[1] = 100f;
return(2);
}
return(0);
});
GraphicsOptions options = new GraphicsOptions(true)
{
};
FillRegionProcessor <Rgba32> processor = new FillRegionProcessor <Rgba32>(brush.Object, region.Object, options);
Image <Rgba32> img = new Image <Rgba32>(10, 10);
processor.Apply(img, bounds);
}
public static async Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req, ILogger log, ExecutionContext context)
{
#region Preparation
var imageUrl = req.Query["imageUrl"];
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var faceEndpoint = config["faceEndpoint"];
var subscriptionKey = config["faceSubscriptionKey"];
#endregion
FaceClient faceClient = new FaceClient(new ApiKeyServiceClientCredentials(subscriptionKey), new System.Net.Http.DelegatingHandler[] { })
{
Endpoint = faceEndpoint
};
IList <DetectedFace> faceList = await faceClient.Face.DetectWithUrlAsync(imageUrl, true, true);
#region Output
var firstFace = faceList.FirstOrDefault();
HttpClient client = new HttpClient();
byte[] buffer = await client.GetByteArrayAsync(imageUrl);
System.IO.MemoryStream imageStream = new System.IO.MemoryStream();
SixLabors.ImageSharp.Formats.IImageFormat format;
using (Image image = Image.Load(buffer, out format))
{
var centerWidth = image.Width / 2;
var centerHeight = image.Height / 2;
var eyeSize = firstFace.FaceLandmarks.EyeLeftInner.X - firstFace.FaceLandmarks.EyeLeftOuter.X;
var blurRectangle = new SixLabors.Primitives.Rectangle(
System.Convert.ToInt32(firstFace.FaceLandmarks.EyeLeftOuter.X - eyeSize),
System.Convert.ToInt32(firstFace.FaceLandmarks.EyeLeftOuter.Y - eyeSize),
System.Convert.ToInt32(firstFace.FaceLandmarks.EyeRightOuter.X + eyeSize - (firstFace.FaceLandmarks.EyeLeftOuter.X - eyeSize)),
System.Convert.ToInt32(firstFace.FaceLandmarks.EyeRightOuter.Y + eyeSize - (firstFace.FaceLandmarks.EyeLeftOuter.Y - eyeSize)));
image.Mutate(x => x
.BokehBlur(blurRectangle));
image.Save(imageStream, format);
}
return(new FileContentResult(imageStream.ToArray(), "image/jpeg"));
#endregion
}
private List <KeyValuePair <int, string> > ProcesSplitImages(string ImageId, string srcOriginalImage, string destinationFolderName)
{
int cols = 5;
int rows = 5;
//int width = 600;
//int height = 600;
var sfileSplit = new List <KeyValuePair <int, string> >();
using (Image <Rgba32> img = Image.Load(srcOriginalImage))
{
// var imgDummy = img.Clone();
//if (img.Width > 600 || img.Height > 600)
//{
// imgDummy = img.Clone(x =>
// x.Resize(new ResizeOptions
// {
// Mode = ResizeMode.Max,
// Position = AnchorPositionMode.Center,
// Size = new SixLabors.Primitives.Size(width, height),
// Compand = false
// }));
//}
int _img_width = img.Width;
int _img_height = img.Height;
string filename = System.IO.Path.GetFileNameWithoutExtension(srcOriginalImage);
var indexFile = 0;
for (int x = 0; x < cols; x++)
{
for (int y = 0; y < rows; y++)
{
indexFile += 1;
var cropArea = new SixLabors.Primitives.Rectangle(x * (_img_width / cols), y * (_img_height / rows), _img_width / cols, _img_height / rows);
var newImg = img.Clone(e => e.Crop(cropArea));
var x_fileName = string.Format("PLS{0}_x{1}_{2}.jpg", ImageId, x, y);
string pathSave = @"" + destinationFolderName.TrimEnd('/') + "/" + x_fileName;
newImg.Save(pathSave, new JpegEncoder {
Quality = 100
});
sfileSplit.Add(new KeyValuePair <int, string>(indexFile, pathSave));
}
}
}
return(sfileSplit);
}
public System.IO.Stream GetImageDetail(System.IO.Stream imageStream, int x, int y, int width, int heigth)
{
#region validation
if (imageStream == null)
{
throw new ArgumentNullException(nameof(imageStream));
}
#endregion
using (Image <Rgba32> originalImage = LoadImageFromStream(imageStream))
{
// sometimes bounding boxes will be larger then image.
// so we will shrink size of bounding box until they are matching our requirements
if (x < 0)
{
x = 0;
}
if (y < 0)
{
y = 0;
}
if (x + width > originalImage.Width)
{
width = originalImage.Width - x;
}
if (y + heigth > originalImage.Height)
{
heigth = originalImage.Height - y;
}
SixLabors.Primitives.Rectangle boundingBox = new SixLabors.Primitives.Rectangle()
{
X = x,
Y = y,
Width = width,
Height = heigth
};
using (Image <Rgba32> targetImage = originalImage.Clone())
{
targetImage.Mutate(ctx => ctx.Crop(boundingBox));
return(SaveAsStream(targetImage));
}
}
}
[InlineData(false, 16, 4)] // we always do 4 sub=pixels when antialising is off.
public void MinimumAntialiasSubpixelDepth(bool antialias, int antialiasSubpixelDepth, int expectedAntialiasSubpixelDepth)
{
SixLabors.Primitives.Rectangle bounds = new SixLabors.Primitives.Rectangle(0, 0, 1, 1);
Mock <IBrush <Rgba32> > brush = new Mock <IBrush <Rgba32> >();
Mock <Region> region = new Mock <Region>();
region.Setup(x => x.Bounds).Returns(bounds);
GraphicsOptions options = new GraphicsOptions(antialias)
{
AntialiasSubpixelDepth = 1
};
FillRegionProcessor <Rgba32> processor = new FillRegionProcessor <Rgba32>(brush.Object, region.Object, options);
Image <Rgba32> img = new Image <Rgba32>(1, 1);
processor.Apply(img, bounds);
region.Verify(x => x.Scan(It.IsAny <float>(), It.IsAny <float[]>(), It.IsAny <int>()), Times.Exactly(4));
}
public static async Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req, TraceWriter log)
{
log.Info("Image data received.");
var kvp = req.GetQueryParameterDictionary();
int x = Convert.ToInt32(kvp["x"]);
int y = Convert.ToInt32(kvp["y"]);
int height = Convert.ToInt32(kvp["height"]);
int width = Convert.ToInt32(kvp["width"]);
var cropRectangle = new SixLabors.Primitives.Rectangle(x, y, width, height);
byte[] data;
string requestBody = new StreamReader(req.Body).ReadToEnd();
if (requestBody.StartsWith("\\"))
{
data = File.ReadAllBytes(requestBody);
}
else
{
data = (byte[])JsonConvert.DeserializeObject(requestBody);
}
log.Info("Starting crop.");
using (Image <Rgba32> image = Image.Load(data))
{
var clone = image.Clone();
clone.Mutate(c => c.Crop(cropRectangle));
// Run pixel detection
log.Info("Determining black pixel count.");
var blackPixelCount = CountPixels(clone, new Rgba32(255, 0, 0, 0));
log.Info("Requesting OCR.");
var text = await GetOcrText(data);
return(new OkObjectResult(new { pixelCount = blackPixelCount, capturedText = text }));
}
}
/// <summary>
/// Blur faces inside the given rectangular areas.
/// </summary>
/// <param name="faceRects">Rectangles defining the areas to be blurred.</param>
/// <param name="sourceImage">The original image to blur.</param>
private void BlurFaces(FaceRectangle[] faceRects, string sourceImage)
{
Image <Rgba32> image;
using (FileStream stream = File.OpenRead(sourceImage))
{
image = SixLabors.ImageSharp.Image.Load(stream);
IPen <Rgba32> pen = new Pen <Rgba32>(new SolidBrush <Rgba32>(Rgba32.Red), 2);
foreach (var faceRect in faceRects)
{
var rectangle = new SixLabors.Primitives.Rectangle(
faceRect.Left,
faceRect.Top,
faceRect.Width,
faceRect.Height);
image.Mutate(img =>
{
img.BoxBlur <Rgba32>(20, rectangle);
img.Draw(pen, rectangle);
});
}
}
// stackoverflow.com/questions/5782913/how-to-convert-from-type-image-to-type-bitmapimage
MemoryStream memoryStream = new MemoryStream();
image.Save(memoryStream, new SixLabors.ImageSharp.Formats.Png.PngEncoder());
BitmapImage bitmap = new BitmapImage();
bitmap.BeginInit();
//bitmap.CacheOption = BitmapCacheOption.OnLoad;
// bitmap.UriSource = null;
bitmap.StreamSource = memoryStream;
bitmap.EndInit();
PhotoSource = bitmap;
}
private void TODO(string path)
{
SixLabors.ImageSharp.Image <SixLabors.ImageSharp.Rgba32> img =
SixLabors.ImageSharp.Image.Load(path);
img.Mutate(x => x.Grayscale());
img.Mutate(x => x.BlackWhite());
img.Mutate(x => x.Invert());
img.Mutate(x => x.Flip(FlipType.Horizontal));
img.Mutate(x => x.RotateFlip(RotateType.Rotate270, FlipType.None));
float degrees = 30;
img.Mutate(x => x.Rotate(degrees, KnownResamplers.Bicubic));
float degreesX = 5, degreesY = 5;
img.Mutate(x => x.Skew(degreesX, degreesY, KnownResamplers.Bicubic));
img.Mutate(x => x.OilPaint());
img.Mutate(x => x.Sepia());
img.Mutate(x => x.Pixelate());
SixLabors.Primitives.Rectangle bounds =
new SixLabors.Primitives.Rectangle(10, 10, img.Width / 2, img.Height / 2);
img.Mutate(x => x.BackgroundColor(SixLabors.ImageSharp.PixelFormats.NamedColors <
SixLabors.ImageSharp.Rgba32> .HotPink, bounds));
img.Mutate(x => x.GaussianBlur());
img.Mutate(x => x.GaussianSharpen());
img.Mutate(x => x.DetectEdges());
img.Mutate(x => x.Glow());
img.Mutate(x => x.Vignette());
SixLabors.ImageSharp.Dithering.IOrderedDither defaultDitherer =
new SixLabors.ImageSharp.Dithering.OrderedDither();
img.Mutate(x => x.Dither(defaultDitherer));
SixLabors.ImageSharp.Dithering.IErrorDiffuser ad =
new SixLabors.ImageSharp.Dithering.AtkinsonDiffuser();
float threshold = 0.5f;
img.Mutate(x => x.Dither(ad, threshold));
SixLabors.Primitives.Rectangle thresholdBounds =
new SixLabors.Primitives.Rectangle(10, 10, img.Width / 2, img.Height / 2);
float thresholdValue = 0.5f;
img.Mutate(x => x.BinaryThreshold(thresholdValue, thresholdBounds));
int value = 5;
SixLabors.Primitives.Rectangle blurBounds =
new SixLabors.Primitives.Rectangle(10, 10, img.Width / 2, img.Height / 2);
img.Mutate(x => x.BoxBlur(value, blurBounds));
img.Mutate(x => x.ColorBlindness(ColorBlindness.Tritanopia));
}