public MagickImage GetText()
{
var image = new MagickImage(new MagickColor(255, 255, 255, 0), 4000, 2000);
var drawables = new Drawables()
//.Rotation(30)
.Text(0, 0, Text)
.TextAntialias(true)
.Font("CarbonRegular W00")
.FontPointSize(387)
//.FontPointSize(360)
//.FontPointSize(-1)
.TextInterlineSpacing(-50)
.TextKerning(20)
//.TextKerning(9)
.FillColor(TextColor)
.Gravity(Gravity.West);
//return drawables;
image.Draw(drawables);
image.Scale(new Percentage(GetScalingFactor() * 100));
image.Trim();
image.Extent(Math.Max(image.Width, image.Height), Math.Max(image.Width, image.Height), Gravity.West);
image.BorderColor = new MagickColor("transparent");
image.Border(20);
image.BorderColor = new MagickColor("#ffffff01");
image.Border(1);
//image.Write("./text-face.png");
return(image);
}
public byte[] Squarify(byte[] image, Color backgroundColor, double borderSizeFactor, MagickFormat format)
{
using (var magickImage = new MagickImage(image))
{
int width = 0;
int height = 0;
if (magickImage.Width > magickImage.Height)
{
width = GetLongSide(magickImage.Width, borderSizeFactor);
height = GetShortSide(magickImage.Height, magickImage.Width, width);
}
else
{
height = GetLongSide(magickImage.Height, borderSizeFactor);
width = GetShortSide(magickImage.Width, magickImage.Height, height);
}
magickImage.Border(width, height);
magickImage.BorderColor = MagickColor.FromRgb(backgroundColor.R, backgroundColor.G, backgroundColor.B);
magickImage.Format = format;
return(magickImage.ToByteArray());
}
}
public static byte[] ToPng <T>([NotNull] this T[,] @this, Func <T, Color> selector, int scaleFactor = 4, int border = 10)
{
var(cx, cy) = @this.GetDimensions();
using var image = new MagickImage(MagickColors.Black, cx, cy);
image.Density = new Density(100, DensityUnit.PixelsPerInch);
using (var outPixels = image.GetPixels())
{
var bytes = new byte[3];
foreach (var(x, y, c) in @this.SelectCells().SelectXy())
{
var color = selector(c);
bytes[0] = color.R;
bytes[1] = color.G;
bytes[2] = color.B;
outPixels[x, y].Set(bytes);
}
}
image.Scale(new Percentage(scaleFactor * 100));
image.BorderColor = image.BackgroundColor;
image.Border(border);
var stream = new MemoryStream();
image.Write(stream, MagickFormat.Png);
return(stream.GetBuffer());
}
public static void GradientBackground()
{
using (MagickImage image = new MagickImage("gradient:blue-darkblue", 400, 175))
{
image.Swirl(45);
image.Border(2);
using (var text = new MagickImage("gradient:blue-red"))
{
text.Settings.Font = "Arial";
//text.Morphology(MorphologyMethod.EdgeIn, Kernel.Diamond);
text.Settings.FontPointsize = 70;
//text.Tile(new MagickImage("gradient:blue-red"),CompositeOperator.Overlay);
text.Annotate("Gradient Fun", new MagickGeometry("+10+65"), Gravity.Center);
text.Write("text.png");
image.Composite(text, CompositeOperator.Over);
}
image.Write("preview.png");
}
}
private void Distort(MagickImage output, PointD[] corners, MagickGeometry inputDimensions, MagickGeometry trimmedDimensions, MagickColor backgroundColor)
{
MagickGeometry outputDimensions = GetDimensions(output, corners, inputDimensions, trimmedDimensions);
double[] arguments = new double[16]
{
corners[0].X, corners[0].Y, 0, 0,
corners[1].X, corners[1].Y, 0, outputDimensions.Height,
corners[2].X, corners[2].Y, outputDimensions.Width, outputDimensions.Height,
corners[3].X, corners[3].Y, outputDimensions.Width, 0
};
output.VirtualPixelMethod = VirtualPixelMethod.Background;
output.BackgroundColor = backgroundColor;
if (!DisableViewportCrop)
{
output.SetArtifact("distort:viewport", GetViewport(arguments, corners).ToString());
}
output.Distort(DistortMethod.Perspective, true, arguments);
output.BorderColor = backgroundColor;
output.Border(2);
output.ColorFuzz = ColorFuzz;
output.Trim();
output.RePage();
}
public static void GenerateLogo(
System.Drawing.Color textFillColor,
System.Drawing.Color borderColor,
System.Drawing.Color backgroundColor,
System.Drawing.Color strokeColor,
System.Drawing.Color shadowColor,
System.Drawing.Color BackgroundShadow,
int strokeWidth = 1,
bool caption = true,
int borderSize = 4,
bool border = true,
bool BackgroundShadowOn = true,
string textDesc = "Long game adventure test",
string fontName = @"C:\Windows\Fonts\comicbd.ttf")
{
using (var magick = new MagickImage(backgroundColor, 400, 175))
{
if (border)
{
using (var borderimage = new MagickImage(new MagickColor(), 400 - 8, 175 - 8))
{
borderimage.BorderColor = borderColor;
borderimage.Border(borderSize);
borderimage.Emboss();
borderimage.RePage();
magick.Composite(borderimage, CompositeOperator.Atop);
}
if (BackgroundShadowOn)
{
var clone = AddShadow(magick);
}
}
var textToWrite = "";
if (caption)
{
textToWrite = "caption: " + textDesc;
}
else
{
textToWrite = "label: " + textDesc;
}
using (var textImage = new MagickImage())
{
CreateText(textImage, textToWrite, caption, textFillColor);
magick.Composite(textImage, Gravity.Center, CompositeOperator.Over);
}
magick.Write("preview.png");
}
}
private MagickGeometry TrimImage(MagickImage image, MagickColor backgroundColor, int borderSize)
{
image.BorderColor = backgroundColor;
image.Border(borderSize);
image.ColorFuzz = ColorFuzz;
image.Trim();
image.RePage();
return(new MagickGeometry(image.Width, image.Height));
}
public void ShouldOnlyAddVerticalBorderWhenOnlyWidthIsSpecified()
{
using (var image = new MagickImage("xc:red", 1, 1))
{
image.Border(3, 0);
Assert.Equal(7, image.Width);
Assert.Equal(1, image.Height);
}
}
public void ShouldOnlyAddHorizontalBorderWhenOnlyHeightIsSpecified()
{
using (var image = new MagickImage("xc:red", 1, 1))
{
image.Border(0, 3);
Assert.Equal(1, image.Width);
Assert.Equal(7, image.Height);
}
}
private void PadImage(MagickImage image)
{
if (Padding == 0)
{
return;
}
image.Compose = CompositeOperator.Over;
image.BorderColor = BackgroundColor;
image.Border(Padding);
}
public void ShouldAddBorderOnAllSides()
{
using (var image = new MagickImage("xc:red", 1, 1))
{
image.BorderColor = MagickColors.Green;
image.Border(3);
Assert.Equal(7, image.Width);
Assert.Equal(7, image.Height);
ColorAssert.Equal(MagickColors.Green, image, 1, 1);
}
}
public IEnumerable <byte> PreProcess(IEnumerable <byte> bitmap)
{
using (var processed = new MagickImage(bitmap.ToArray()))
{
processed.ColorSpace = ColorSpace.Gray;
processed.ColorType = ColorType.Grayscale;
processed.Normalize();
// Denoise
using (var denoise = processed.Clone())
{
denoise.ColorSpace = ColorSpace.Gray;
denoise.Negate();
denoise.AdaptiveThreshold(10, 10, new Percentage(5));
denoise.ContrastStretch(new Percentage(0));
processed.Composite(denoise, CompositeOperator.CopyAlpha);
}
processed.Opaque(MagickColors.Transparent, MagickColors.White);
processed.Alpha(AlphaOption.Off);
// Deskew
processed.BackgroundColor = MagickColors.White;
processed.Deskew(new Percentage(40));
// Sharpen
processed.Sharpen(0, 1);
// Saturate
processed.Modulate(new Percentage(100), new Percentage(200), new Percentage(100));
// Trim
processed.Trim();
processed.RePage();
processed.Compose = CompositeOperator.Over;
processed.BorderColor = MagickColors.White;
processed.Border(15);
return(processed.ToByteArray());
}
}
public static string OcrSmallText(Int2 size, Func <Int2, bool> isSet)
{
var imagePath = Path.GetTempFileName().ToNPath();
try
{
// to detect small text, tesseract needs black on white with a border and scaled up 400%
using (var image = new MagickImage(MagickColors.White, size.X, size.Y))
{
image.Density = new Density(100, DensityUnit.PixelsPerInch);
using (var outPixels = image.GetPixels())
{
for (var y = 0; y < image.Height; ++y)
{
for (var x = 0; x < image.Width; ++x)
{
if (isSet(new Int2(x, y)))
{
outPixels[x, y].Set(k_On);
}
}
}
}
image.Scale(new Percentage(400));
image.BorderColor = image.BackgroundColor;
image.Border(10);
image.Write(imagePath, MagickFormat.Png);
}
var(stdout, stderr) = (new List <string>(), new List <string>());
ProcessUtility.ExecuteCommandLine("tesseract", Arr(imagePath.ToString(), "stdout"), null, stdout, stderr);
return(stdout[0]);
}
finally
{
imagePath.DeleteIfExists();
}
}
public void PrepareForPlate(MagickImage image, Plate plate, Gravity gravity = Gravity.Center, bool extent = true)
{
image.BackgroundColor = new MagickColor(255, 255, 255, 0);
switch (plate)
{
case Plate.Left:
if (extent)
{
image.Trim();
image.Extent(Math.Max(image.Width, image.Height), Math.Max(image.Width, image.Height), gravity);
image.BorderColor = new MagickColor("transparent");
image.Border(20);
image.BorderColor = new MagickColor("#ffffff01");
image.Border(1);
}
image.Shear(-30, 0);
image.Rotate(30);
break;
case Plate.Right:
image.Trim();
image.Extent(Math.Max(image.Width, image.Height), Math.Max(image.Width, image.Height), gravity);
image.BorderColor = new MagickColor("transparent");
image.Border(20);
image.BorderColor = new MagickColor("#ffffff01");
image.Border(1);
image.Shear(30, 0);
image.Rotate(-30);
break;
case Plate.Top:
//image.Scale(new Percentage(GetScalingFactor() * 100));
image.Trim();
image.Extent(Math.Max(image.Width, image.Height), Math.Max(image.Width, image.Height), gravity);
image.BorderColor = new MagickColor("transparent");
image.Border(10);
image.BorderColor = new MagickColor("#ffffff01");
image.Border(1);
image.Shear(30, 0);
image.Rotate(30);
break;
}
image.Trim();
}
public byte[] GenerateNewImg(EntityNewsModel entityNewsModel)
{
var typeSettingHelper = new TypeSettingHelper();
//内容
var wordsArray = typeSettingHelper.GetTypeSettingArray(entityNewsModel.Content, 36);
var titleArray = typeSettingHelper.GetTypeSettingArray(entityNewsModel.Title, 28);
//主图左边距
var mainImgMarginLeft = 93;
//标题距离顶部间距
var titleTopMrgin = 63;
//标题字体高度
var titleFontHeight = 50;
//标题字体上下间距
var titleFontPadding = 40;
//标题距离横线间距
var titleSpaceLine = 88;
//内容填充边距
var contentPadding = 62;
//主图上边距
var mainImgMarginTop = 140;
//主图宽度
var mainImgWidth = 894;
//内容距离横线上边距
var contentTopMrgin = 90;
//内容字体上下间距
var contentFontPadding = 49;
//内容字体高度
var contentFontHeight = 40;
//内容距离下边距
var contentBottomMargin = 102;
//底部高度，包含二维码
var bottomHeight = 321;
//二维码上边距
var wechatCodeTopMargin = 71;
//二维码左边距
var wechatCodeLeftMargin = 337;
//微信二维码图片高度
var wechatCodeImgHeight = 168;
//标题图片总高度
var titleHeight = titleTopMrgin + titleSpaceLine + titleFontHeight * titleArray.Length + (titleArray.Length - 1) * titleFontPadding;
//新闻内容模块总高度
var contentHeight = contentTopMrgin + contentBottomMargin + wordsArray.Length * contentFontHeight + (wordsArray.Length - 1) * contentFontPadding;
var microsoftYaheiUi = "SimHei";
var picHeight = titleHeight + contentHeight;
var lineColor = new MagickColor("gray");
using (var image = new MagickImage(new MagickColor("#F9F8F6"), 1080, picHeight + bottomHeight + mainImgMarginTop))
{
using (var mainImgImage = new MagickImage(new MagickColor("#FFFFFF"), mainImgWidth, picHeight))
{
//title
for (var i = 0; i < titleArray.Length; i++)
{
new Drawables()
.TextEncoding(Encoding.UTF8)
.TextAntialias(true)
.FontPointSize(55)
.FillColor(new MagickColor(126, 99, 43))
.Gravity(Gravity.Northwest)
.Font(microsoftYaheiUi)
.Text(contentPadding, titleTopMrgin + ((titleFontHeight + titleFontPadding) * i), titleArray[i])
.Draw(mainImgImage);
}
for (var i = 2; i < 81; i++)
{
var beginWidth = 30 + 10 * i;
var endWidth = 35 + 10 * i;
//头部间隔线
new Drawables().StrokeWidth(0.5).StrokeColor(lineColor).Line(beginWidth, titleHeight, endWidth, titleHeight).Draw(mainImgImage);
}
for (var i = 0; i < wordsArray.Length; i++)
{
new Drawables()
.TextEncoding(Encoding.UTF8)
.TextAntialias(true)
.FontPointSize(43)
.FillColor(new MagickColor(102, 102, 102))
.Gravity(Gravity.Northwest)
.Font(microsoftYaheiUi)
.Text(contentPadding, titleHeight + contentTopMrgin + (contentFontPadding + contentFontHeight) * i, wordsArray[i])
.Draw(mainImgImage);
}
//尾部
//new Drawables().StrokeWidth(0.5).StrokeColor(lineColor).Line(20, picHeight - 180, 880, picHeight - 180).Draw(mainImgImage);
mainImgImage.Border(1);
mainImgImage.BorderColor = new MagickColor("#4D4D4D");
image.Composite(mainImgImage, mainImgMarginLeft, mainImgMarginTop, CompositeOperator.Over);
}
//小程序二维码
var client = new WebClient();
using (var watermark = new MagickImage(client.DownloadData("http://img.blockcomet.com/wechatCode.png")))
{
var size = new MagickGeometry(wechatCodeImgHeight, wechatCodeImgHeight)
{
IgnoreAspectRatio = true
};
watermark.Resize(size);
watermark.Evaluate(Channels.Black, EvaluateOperator.Divide, 4);
image.Composite(watermark, wechatCodeLeftMargin, picHeight + wechatCodeTopMargin + mainImgMarginTop, CompositeOperator.Over);
}
new Drawables()
.TextEncoding(Encoding.UTF8)
.TextAntialias(true)
.FontPointSize(50)
.FillColor(new MagickColor(102, 102, 102))
.Gravity(Gravity.Northwest)
.Font(microsoftYaheiUi)
.Text(wechatCodeImgHeight + wechatCodeLeftMargin + 30, picHeight + mainImgMarginTop + 123, "彗星播报")
.Draw(image);
return(image.ToByteArray(MagickFormat.Jpg));
}
//return imgUrl;
}
/// <summary>
/// Method to perform file modification using Magick.Net
/// </summary>
/// <returns>Path to the new file ( modified )</returns>
public async Task <DefaultServiceResponse> ModifyFile(ModifyModel model)
{
// Get last uploaded photo by the customer
var lastUploadedImageName = DataContext.CustomerImageFiles.ToList().Where(imageFile => imageFile.CustomerId == model.UserId).OrderByDescending(orderBy => orderBy.UploadTime).Select(response => response.FullName);
var intesivity = model.Intesivity;
var editedFileName = "";
using (var image = new MagickImage(lastUploadedImageName.First()))
{
switch (model.SelectedOperation)
{
case "CycleColorMap":
image.CycleColormap(intesivity);
break;
case "FloodFill":
image.FloodFill(10, 10, 10);
break;
case "Flop":
image.Flop();
break;
case "GammaCorrect":
image.GammaCorrect(intesivity); // gramma
break;
case "GausiianBlur":
image.GaussianBlur(intesivity, intesivity); // double radius + double sigma
break;
case "MedianFilter":
image.MedianFilter(intesivity); // radius
break;
case "MotionBlur":
image.MotionBlur(10, 10, 10);
break;
case "Negate":
image.Negate(); // simple negate
break;
default:
break;
}
if (model.UseFrame)
{
image.Border(7, 7);
}
editedFileName = lastUploadedImageName.First().Replace(Path.GetFileNameWithoutExtension(lastUploadedImageName.First()), Path.GetFileNameWithoutExtension(lastUploadedImageName.First()) + "_modified").Replace(Path.GetExtension(lastUploadedImageName.First()), "." + model.OutputFileType.ToLower());
using (File.Create(editedFileName))
image.Write(editedFileName);
}
// Save file to the DB
var originalImageId = DataContext.CustomerImageFiles.Where(imageData => imageData.CustomerId == model.UserId && imageData.FullName.Contains(Path.GetFileNameWithoutExtension(lastUploadedImageName.First()))).Select(result => result.Id).First();
await DataContext.CustomerEditedImageFiles.AddAsync(new ResultImageFIleModel
{
Id = new Guid(),
CustomerId = model.UserId,
FullName = editedFileName,
OriginalImageId = originalImageId.ToString(),
UploadTime = DateTime.Now
});
await DataContext.SaveChangesAsync();
return(new DefaultServiceResponse {
ResponseData = "../" + Path.Combine("CustomersImages", Path.GetFileName(editedFileName))
});
}
private static void PadImage(MagickImage image, int borderSize)
{
image.Border(borderSize);
}