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- using System;
- using System.Collections;
- using System.IO;
- using System.Drawing;
- using System.Drawing.Imaging;
- using System.Drawing.Drawing2D;
- namespace Ant.Service.Utilities
- {
- public class ImageClass
- {
- public ImageClass()
- { }
- #region 缩略图
-
-
-
-
-
-
-
-
- public static void MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, string mode)
- {
- System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);
- int towidth = width;
- int toheight = height;
- int x = 0;
- int y = 0;
- int ow = originalImage.Width;
- int oh = originalImage.Height;
- switch (mode)
- {
- case "HW":
- break;
- case "W":
- toheight = originalImage.Height * width / originalImage.Width;
- break;
- case "H":
- towidth = originalImage.Width * height / originalImage.Height;
- break;
- case "Cut":
- if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
- {
- oh = originalImage.Height;
- ow = originalImage.Height * towidth / toheight;
- y = 0;
- x = (originalImage.Width - ow) / 2;
- }
- else
- {
- ow = originalImage.Width;
- oh = originalImage.Width * height / towidth;
- x = 0;
- y = (originalImage.Height - oh) / 2;
- }
- break;
- default:
- break;
- }
-
- System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
-
- System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
-
- g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
-
- g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
-
- g.Clear(System.Drawing.Color.Transparent);
-
- g.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel);
- try
- {
-
- bitmap.Save(thumbnailPath, System.Drawing.Imaging.ImageFormat.Jpeg);
- }
- catch (System.Exception e)
- {
- throw e;
- }
- finally
- {
- originalImage.Dispose();
- bitmap.Dispose();
- g.Dispose();
- }
- }
- #endregion
- #region 图片水印
-
-
-
-
-
-
- public static string ImageWatermark(string path, string waterpath, string location)
- {
- string kz_name = Path.GetExtension(path);
- if (kz_name == ".jpg" || kz_name == ".bmp" || kz_name == ".jpeg")
- {
- DateTime time = DateTime.Now;
- string filename = "" + time.Year.ToString() + time.Month.ToString() + time.Day.ToString() + time.Hour.ToString() + time.Minute.ToString() + time.Second.ToString() + time.Millisecond.ToString();
- Image img = Bitmap.FromFile(path);
- Image waterimg = Image.FromFile(waterpath);
- Graphics g = Graphics.FromImage(img);
- ArrayList loca = GetLocation(location, img, waterimg);
- g.DrawImage(waterimg, new Rectangle(int.Parse(loca[0].ToString()), int.Parse(loca[1].ToString()), waterimg.Width, waterimg.Height));
- waterimg.Dispose();
- g.Dispose();
- string newpath = Path.GetDirectoryName(path) + filename + kz_name;
- img.Save(newpath);
- img.Dispose();
- File.Copy(newpath, path, true);
- if (File.Exists(newpath))
- {
- File.Delete(newpath);
- }
- }
- return path;
- }
-
-
-
-
-
-
- private static ArrayList GetLocation(string location, Image img, Image waterimg)
- {
- ArrayList loca = new ArrayList();
- int x = 0;
- int y = 0;
- if (location == "LT")
- {
- x = 10;
- y = 10;
- }
- else if (location == "T")
- {
- x = img.Width / 2 - waterimg.Width / 2;
- y = img.Height - waterimg.Height;
- }
- else if (location == "RT")
- {
- x = img.Width - waterimg.Width;
- y = 10;
- }
- else if (location == "LC")
- {
- x = 10;
- y = img.Height / 2 - waterimg.Height / 2;
- }
- else if (location == "C")
- {
- x = img.Width / 2 - waterimg.Width / 2;
- y = img.Height / 2 - waterimg.Height / 2;
- }
- else if (location == "RC")
- {
- x = img.Width - waterimg.Width;
- y = img.Height / 2 - waterimg.Height / 2;
- }
- else if (location == "LB")
- {
- x = 10;
- y = img.Height - waterimg.Height;
- }
- else if (location == "B")
- {
- x = img.Width / 2 - waterimg.Width / 2;
- y = img.Height - waterimg.Height;
- }
- else
- {
- x = img.Width - waterimg.Width;
- y = img.Height - waterimg.Height;
- }
- loca.Add(x);
- loca.Add(y);
- return loca;
- }
- #endregion
- #region 文字水印
-
-
-
-
-
-
-
-
- public static string LetterWatermark(string path, int size, string letter, Color color, string location)
- {
- #region
- string kz_name = Path.GetExtension(path);
- if (kz_name == ".jpg" || kz_name == ".bmp" || kz_name == ".jpeg")
- {
- DateTime time = DateTime.Now;
- string filename = "" + time.Year.ToString() + time.Month.ToString() + time.Day.ToString() + time.Hour.ToString() + time.Minute.ToString() + time.Second.ToString() + time.Millisecond.ToString();
- Image img = Bitmap.FromFile(path);
- Graphics gs = Graphics.FromImage(img);
- ArrayList loca = GetLocation(location, img, size, letter.Length);
- Font font = new Font("宋体", size);
- Brush br = new SolidBrush(color);
- gs.DrawString(letter, font, br, float.Parse(loca[0].ToString()), float.Parse(loca[1].ToString()));
- gs.Dispose();
- string newpath = Path.GetDirectoryName(path) + filename + kz_name;
- img.Save(newpath);
- img.Dispose();
- File.Copy(newpath, path, true);
- if (File.Exists(newpath))
- {
- File.Delete(newpath);
- }
- }
- return path;
- #endregion
- }
-
-
-
-
-
-
-
- private static ArrayList GetLocation(string location, Image img, int width, int height)
- {
- #region
- ArrayList loca = new ArrayList();
- float x = 10;
- float y = 10;
- if (location == "LT")
- {
- loca.Add(x);
- loca.Add(y);
- }
- else if (location == "T")
- {
- x = img.Width / 2 - (width * height) / 2;
- loca.Add(x);
- loca.Add(y);
- }
- else if (location == "RT")
- {
- x = img.Width - width * height;
- }
- else if (location == "LC")
- {
- y = img.Height / 2;
- }
- else if (location == "C")
- {
- x = img.Width / 2 - (width * height) / 2;
- y = img.Height / 2;
- }
- else if (location == "RC")
- {
- x = img.Width - height;
- y = img.Height / 2;
- }
- else if (location == "LB")
- {
- y = img.Height - width - 5;
- }
- else if (location == "B")
- {
- x = img.Width / 2 - (width * height) / 2;
- y = img.Height - width - 5;
- }
- else
- {
- x = img.Width - width * height;
- y = img.Height - width - 5;
- }
- loca.Add(x);
- loca.Add(y);
- return loca;
- #endregion
- }
- #endregion
- #region 调整光暗
-
-
-
-
-
-
-
- public Bitmap LDPic(Bitmap mybm, int width, int height, int val)
- {
- Bitmap bm = new Bitmap(width, height);
- int x, y, resultR, resultG, resultB;
- Color pixel;
- for (x = 0; x < width; x++)
- {
- for (y = 0; y < height; y++)
- {
- pixel = mybm.GetPixel(x, y);
- resultR = pixel.R + val;
- resultG = pixel.G + val;
- resultB = pixel.B + val;
- bm.SetPixel(x, y, Color.FromArgb(resultR, resultG, resultB));
- }
- }
- return bm;
- }
- #endregion
- #region 反色处理
-
-
-
-
-
-
- public Bitmap RePic(Bitmap mybm, int width, int height)
- {
- Bitmap bm = new Bitmap(width, height);
- int x, y, resultR, resultG, resultB;
- Color pixel;
- for (x = 0; x < width; x++)
- {
- for (y = 0; y < height; y++)
- {
- pixel = mybm.GetPixel(x, y);
- resultR = 255 - pixel.R;
- resultG = 255 - pixel.G;
- resultB = 255 - pixel.B;
- bm.SetPixel(x, y, Color.FromArgb(resultR, resultG, resultB));
- }
- }
- return bm;
- }
- #endregion
- #region 浮雕处理
-
-
-
-
-
-
- public Bitmap FD(Bitmap oldBitmap, int Width, int Height)
- {
- Bitmap newBitmap = new Bitmap(Width, Height);
- Color color1, color2;
- for (int x = 0; x < Width - 1; x++)
- {
- for (int y = 0; y < Height - 1; y++)
- {
- int r = 0, g = 0, b = 0;
- color1 = oldBitmap.GetPixel(x, y);
- color2 = oldBitmap.GetPixel(x + 1, y + 1);
- r = Math.Abs(color1.R - color2.R + 128);
- g = Math.Abs(color1.G - color2.G + 128);
- b = Math.Abs(color1.B - color2.B + 128);
- if (r > 255) r = 255;
- if (r < 0) r = 0;
- if (g > 255) g = 255;
- if (g < 0) g = 0;
- if (b > 255) b = 255;
- if (b < 0) b = 0;
- newBitmap.SetPixel(x, y, Color.FromArgb(r, g, b));
- }
- }
- return newBitmap;
- }
- #endregion
- #region 拉伸图片
-
-
-
-
-
-
- public static Bitmap ResizeImage(Bitmap bmp, int newW, int newH)
- {
- try
- {
- Bitmap bap = new Bitmap(newW, newH);
- Graphics g = Graphics.FromImage(bap);
- g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
- g.DrawImage(bap, new Rectangle(0, 0, newW, newH), new Rectangle(0, 0, bap.Width, bap.Height), GraphicsUnit.Pixel);
- g.Dispose();
- return bap;
- }
- catch
- {
- return null;
- }
- }
- #endregion
- #region 滤色处理
-
-
-
-
-
-
- public Bitmap FilPic(Bitmap mybm, int width, int height)
- {
- Bitmap bm = new Bitmap(width, height);
- int x, y;
- Color pixel;
- for (x = 0; x < width; x++)
- {
- for (y = 0; y < height; y++)
- {
- pixel = mybm.GetPixel(x, y);
- bm.SetPixel(x, y, Color.FromArgb(0, pixel.G, pixel.B));
- }
- }
- return bm;
- }
- #endregion
- #region 左右翻转
-
-
-
-
-
-
- public Bitmap RevPicLR(Bitmap mybm, int width, int height)
- {
- Bitmap bm = new Bitmap(width, height);
- int x, y, z;
- Color pixel;
- for (y = height - 1; y >= 0; y--)
- {
- for (x = width - 1, z = 0; x >= 0; x--)
- {
- pixel = mybm.GetPixel(x, y);
- bm.SetPixel(z++, y, Color.FromArgb(pixel.R, pixel.G, pixel.B));
- }
- }
- return bm;
- }
- #endregion
- #region 上下翻转
-
-
-
-
-
-
- public Bitmap RevPicUD(Bitmap mybm, int width, int height)
- {
- Bitmap bm = new Bitmap(width, height);
- int x, y, z;
- Color pixel;
- for (x = 0; x < width; x++)
- {
- for (y = height - 1, z = 0; y >= 0; y--)
- {
- pixel = mybm.GetPixel(x, y);
- bm.SetPixel(x, z++, Color.FromArgb(pixel.R, pixel.G, pixel.B));
- }
- }
- return bm;
- }
- #endregion
- #region 压缩图片
-
-
-
-
-
- public bool Compress(string oldfile, string newfile)
- {
- try
- {
- System.Drawing.Image img = System.Drawing.Image.FromFile(oldfile);
- System.Drawing.Imaging.ImageFormat thisFormat = img.RawFormat;
- Size newSize = new Size(100, 125);
- Bitmap outBmp = new Bitmap(newSize.Width, newSize.Height);
- Graphics g = Graphics.FromImage(outBmp);
- g.CompositingQuality = CompositingQuality.HighQuality;
- g.SmoothingMode = SmoothingMode.HighQuality;
- g.InterpolationMode = InterpolationMode.HighQualityBicubic;
- g.DrawImage(img, new Rectangle(0, 0, newSize.Width, newSize.Height), 0, 0, img.Width, img.Height, GraphicsUnit.Pixel);
- g.Dispose();
- EncoderParameters encoderParams = new EncoderParameters();
- long[] quality = new long[1];
- quality[0] = 100;
- EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
- encoderParams.Param[0] = encoderParam;
- ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageEncoders();
- ImageCodecInfo jpegICI = null;
- for (int x = 0; x < arrayICI.Length; x++)
- if (arrayICI[x].FormatDescription.Equals("JPEG"))
- {
- jpegICI = arrayICI[x];
- break;
- }
- img.Dispose();
- if (jpegICI != null) outBmp.Save(newfile, System.Drawing.Imaging.ImageFormat.Jpeg);
- outBmp.Dispose();
- return true;
- }
- catch
- {
- return false;
- }
- }
- #endregion
- #region 图片灰度化
- public Color Gray(Color c)
- {
- int rgb = Convert.ToInt32((double)(((0.3 * c.R) + (0.59 * c.G)) + (0.11 * c.B)));
- return Color.FromArgb(rgb, rgb, rgb);
- }
- #endregion
- #region 转换为黑白图片
-
-
-
-
-
-
- public Bitmap BWPic(Bitmap mybm, int width, int height)
- {
- Bitmap bm = new Bitmap(width, height);
- int x, y, result;
- Color pixel;
- for (x = 0; x < width; x++)
- {
- for (y = 0; y < height; y++)
- {
- pixel = mybm.GetPixel(x, y);
- result = (pixel.R + pixel.G + pixel.B) / 3;
- bm.SetPixel(x, y, Color.FromArgb(result, result, result));
- }
- }
- return bm;
- }
- #endregion
- #region 获取图片中的各帧
-
-
-
-
-
- public void GetFrames(string pPath, string pSavedPath)
- {
- Image gif = Image.FromFile(pPath);
- FrameDimension fd = new FrameDimension(gif.FrameDimensionsList[0]);
- int count = gif.GetFrameCount(fd);
- for (int i = 0; i < count; i++)
- {
- gif.SelectActiveFrame(fd, i);
- gif.Save(pSavedPath + "\\frame_" + i + ".jpg", ImageFormat.Jpeg);
- }
- }
- #endregion
- }
- }
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