/// <summary>
/// Performs the EntropyCrop effect from the ImageProcessor library.
/// </summary>
/// <param name="image">The image with which to apply the effect.</param>
/// <param name="threshold">The value used to determine where the crop will occur.</param>
/// <returns>A new image with the EntropyCrop effect applied.</returns>
public Image EntropyCrop(Image image, byte threshold = 128)
{
using var factory = new ImageFactory();
factory.Load(image);
factory.EntropyCrop(threshold);
var result = factory.Image;
return(new Bitmap(result));
}
void IModule.Install(ModuleManager manager)
{
_manager = manager;
_client = manager.Client;
_http = _client.GetService <HttpService>();
manager.CreateCommands("image", group =>
{
group.CreateCommand("caption")
.Parameter("uri", ParameterType.Required)
.Parameter("parameters", ParameterType.Unparsed)
.Description("Adds text to an Image.\n<`uri`> ⦗`color`⦘ ⦗`alpha`⦘ ⦗`position`⦘ ⦗`fontsize`⦘ ⦗`dropshadow`⦘\nExample usage:\n⦗`cap http://myimage.png red 0.5 center arial 12 1 hello world`⦘\n⦗`cap http://myimage.png hello world`⦘")
.Alias("cap")
.Do(async e =>
{
if (e.Args.Any())
{
var args = getArgs(e);
string uri = e.Args[0];
if (args.Any())
{
if (await isImage(uri))
{
string file = "img_cap_tmp" + Guid.NewGuid().ToString() + await getImageExtension(uri);
try
{
await DownloadImage(uri, file);
}
catch (WebException ex)
{
await _client.ReplyError(e, ex.Message);
_client.Log.Error("captions", ex);
if (File.Exists(file))
{
File.Delete(file);
}
return;
}
if (File.Exists(file))
{
byte[] pb = File.ReadAllBytes(file);
var asd = new TextLayer();
asd.Text = args?["text"];
asd.FontColor = args.ContainsKey("color") ? System.Drawing.Color.FromName(args["color"]) : System.Drawing.Color.White;
asd.FontFamily = args.ContainsKey("font") ? FontFamily.Families.Where(x => x.Name == args["font"]).FirstOrDefault() : FontFamily.GenericSerif;
asd.DropShadow = args.ContainsKey("dropshadow") ? bool.Parse(args["dropshadow"]) : false;
// asd.Position = Point.Empty;
asd.Opacity = args.ContainsKey("opacity") ? int.Parse(args["opacity"]) : 100;
asd.Style = args.ContainsKey("style") ? (FontStyle)Enum.Parse(typeof(FontStyle), args["style"], true) : FontStyle.Regular;
asd.FontSize = args.ContainsKey("size") ? int.Parse(args["size"]) : 20;
ISupportedImageFormat format = new PngFormat {
Quality = 100
};
using (MemoryStream ins = new MemoryStream(pb))
using (MemoryStream outs = new MemoryStream())
using (ImageFactory iff = new ImageFactory(true))
{
iff.Load(ins)
.Watermark(asd)
.Format(format)
.Save(outs);
await e.Channel.SendFile("output.png", outs);
}
File.Delete(file);
}
else
{
await _client.ReplyError(e, "Couldn't find your image on my end. Bug @Techbot about it.");
return;
}
}
else
{
await _client.ReplyError(e, "That doesn't seem to be an image...");
}
}
else
{
await _client.ReplyError(e, "No Parameters provided, aborting...");
return;
}
}
else
{
await _client.Reply(e, "Usage: `cap [link] <text>`");
}
});
group.CreateCommand("edit")
.Parameter("uri", ParameterType.Required)
.Parameter("parameters", ParameterType.Unparsed)
.Description("transforms an image.\nSupported Parameters:\n\n\nTint: `tint=red`\nCensor: `censor=x;y;w;h`\n`Scaling: `w=num or h=num`\n`blur=num`\n`rot=num`\n`filp=true/false`\n`crop=true + (top=num or bottom=num or left=num or right=num)`")
.Alias("e")
.Do(async e =>
{
if (e.Args.Any())
{
var args = getArgs(e);
string uri = e.Args[0];
if (await isImage(uri))
{
string file = "img_e_tmp" + Guid.NewGuid().ToString() + await getImageExtension(uri);
try
{
await DownloadImage(uri, file);
}
catch (WebException ex)
{
await _client.ReplyError(e, ex.Message);
_client.Log.Error("captions", ex);
if (File.Exists(file))
{
File.Delete(file);
}
return;
}
if (File.Exists(file))
{
byte[] pb = File.ReadAllBytes(file);
ISupportedImageFormat format = new PngFormat {
Quality = 100
};
using (MemoryStream ins = new MemoryStream(pb))
using (MemoryStream outs = new MemoryStream())
using (ImageFactory iff = new ImageFactory(true))
{
iff.Load(ins);
if (args.ContainsKey("rot"))
{
iff.Rotate(int.Parse(args["rot"]));
}
if (args.ContainsKey("flip"))
{
iff.Flip(bool.Parse(args["flip"]));
}
if (args.ContainsKey("blur"))
{
iff.GaussianBlur(int.Parse(args["blur"]));
}
if (args.ContainsKey("ecrop"))
{
iff.EntropyCrop(byte.Parse(args["ecrop"]));
}
if (args.ContainsKey("pixelate"))
{
iff.Pixelate(int.Parse(args["pixelate"]));
}
if (args.ContainsKey("tint"))
{
iff.Tint(System.Drawing.Color.FromName(args["tint"]));
}
if (args.ContainsKey("replacecolor"))
{
string[] rcargs = args["replacecolor"].Split(';');
System.Drawing.Color tar = System.Drawing.Color.FromName(rcargs[0]);
System.Drawing.Color rep = System.Drawing.Color.FromName(rcargs[1]);
if (rcargs.Length > 2 && int.Parse(rcargs[2]) >= 128 || int.Parse(rcargs[2]) < 0)
{
await _client.ReplyError(e, "Fuzzines mix and max values are 0 - 128");
File.Delete(file);
return;
}
int fuzz = rcargs.Length > 2 ? int.Parse(rcargs[2]) : 128;
iff.ReplaceColor(tar, rep, fuzz);
}
if (args.ContainsKey("censor"))
{
string[] cargs = args["censor"].Split(';');
var pixels = int.Parse(cargs[4]);
var x = int.Parse(cargs[0]);
var y = -int.Parse(cargs[1]);
var w = int.Parse(cargs[2]);
var h = int.Parse(cargs[3]);
iff.Pixelate(pixels, new Rectangle(new Point(x, y), new Size(w, h)));
}
if (args.ContainsKey("w") || args.ContainsKey("h"))
{
int width = 0, height = 0;
if (args.ContainsKey("w"))
{
width = int.Parse(args["w"]);
}
if (args.ContainsKey("h"))
{
height = int.Parse(args["h"]);
}
iff.Resize(new ResizeLayer(new Size(width, height), ResizeMode.Stretch, AnchorPosition.Center, true, null, new Size(5000, 5000)));
}
if (args.ContainsKey("crop"))
{
int top = 0, bottom = 0, left = 0, right = 0;
// is there a better way to do this?
if (args.ContainsKey("top"))
{
top = int.Parse(args["top"]);
}
if (args.ContainsKey("bottom"))
{
bottom = int.Parse(args["bottom"]);
}
if (args.ContainsKey("left"))
{
left = int.Parse(args["left"]);
}
if (args.ContainsKey("right"))
{
right = int.Parse(args["right"]);
}
iff.Crop(new CropLayer(
top,
bottom,
left,
right,
CropMode.Percentage));
}
iff
.Format(format)
.Save(outs);
await e.Channel.SendFile("output.png", outs);
}
File.Delete(file);
}
else
{
await _client.ReplyError(e, "Couldn't find your image on my end. Bug @Techbot about it.");
return;
}
}
else
{
await _client.ReplyError(e, "That doesn't seem to be an image...");
}
}
});
});
}
private void entropyCropToolStripMenuItem_Click(object sender, EventArgs e)
{
imageFactory.EntropyCrop(128);
pictureBox.Image = imageFactory.Image;
}
public IImageTransformer EntropyCrop(byte threshold = 128)
{
_image.EntropyCrop(threshold);
return(this);
}
public override void Apply(ImageFactory fs)
{
fs = fs.EntropyCrop(threshold);
}