601 lines
22 KiB
C#
601 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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namespace AllBase
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{
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public class ImageBuild
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{
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public byte[] Img;
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public int Width = 0, Height = 0;
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public Image InitImage = null;
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public Bitmap InitImagex = null;
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public string format = "";
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public bool CanUser
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{
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get { return format == ".jpg" || format == ".png"; }
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}
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public ImageBuild(byte[] image)
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{
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if (image == null || image.Length == 0)
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return;
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Img = image;
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try
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{
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MemoryStream ms = new MemoryStream(Img);
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InitImage = Image.FromStream(ms);
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var f = GetImageFormat(InitImage, out format);
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ms.Close();
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Width = InitImage.Width;
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Height = InitImage.Height;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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}
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}
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public byte[] ImageSheild()
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{
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if (Width > 700 || Height > 700)
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{
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CutToSize(700, 700);
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}
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InitImagex = (Bitmap)InitImage;
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long r = 0, g = 0, b = 0;
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for (int i = 0; i < InitImagex.Height - 3; i++)
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{
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for (int j = 0; j < InitImagex.Width - 3;)
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{
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Color c = InitImagex.GetPixel(i, j);
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int rr = c.R, bb = c.B, gg = c.G;
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for (int k = 0; k < 3; k++)
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{
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for (int l = 0; l < 3; l++)
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{
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if (k == 1 && l == 1 || k == 0 && l == 0)
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continue;
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var cc = InitImagex.GetPixel(i + k, j + l);
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if (Math.Abs(cc.R - c.R) > 15 || Math.Abs(cc.B - c.B) > 15 || Math.Abs(cc.G - c.G) > 15)
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goto End;
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rr += cc.R;
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bb += cc.B;
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gg += cc.G;
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}
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}
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c = Color.FromArgb(rr / 8, gg / 8, bb / 8);
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InitImagex.SetPixel(i + 1, j + 1, c);
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End:
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j++;
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}
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}
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for (int i = 0; i < InitImagex.Height; i++)
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{
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for (int j = 0; j < InitImagex.Width; j++)
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{
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Color c = InitImagex.GetPixel(i, j);
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r += c.R;
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g += c.G;
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b += c.B;
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}
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}
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int avgR = (int)(r / InitImagex.Height / InitImagex.Width);
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int avgG = (int)(g / InitImagex.Height / InitImagex.Width);
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int avgB = (int)(b / InitImagex.Height / InitImagex.Width);
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int avg = avgB + avgR + avgG;
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for (int i = 0; i < InitImagex.Height; i++)
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{
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for (int j = 0; j < InitImagex.Width; j++)
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{
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Color c = InitImagex.GetPixel(i, j);
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bool add = c.R + c.B + c.G > avg;
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int rr = add ? c.R < 240 ? c.R + 10 : 255 : c.R > 15 ? c.R - 15 : 0;
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int gg = add ? c.G < 240 ? c.G + 10 : 255 : c.G > 15 ? c.G - 15 : 0;
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int bb = add ? c.B < 240 ? c.B + 10 : 255 : c.B > 15 ? c.B - 15 : 0;
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c = Color.FromArgb(rr, gg, bb);
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InitImagex.SetPixel(i, j, c);
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}
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}
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InitImagex.Save("1.jpg", ImageFormat.Jpeg);
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return null;
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}
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/// <summary>
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/// 裁剪为指定大小，不符合则返回null
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/// </summary>
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/// <param name="width"></param>
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/// <param name="height"></param>
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/// <returns></returns>
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public byte[] CutToSize(int width, int height)
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{
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if (InitImage == null)
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return null;
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int w = InitImage.Width;
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int h = InitImage.Height;
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if (w < width || h < height)
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{
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return null;
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}
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int x = 0, y = 0, nw = w, nh = h;
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int tx = 0, ty = 0, tw = width, th = height;
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double f = w * 1.0 / width;
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double t = h * 1.0 / height;
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if (f == t)//无需变化
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{
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}
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else if (f > t)//宽度较大
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{
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x = (int)(((f - t) / 2) * width);
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nw = w - x * 2;
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}
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else//高度较大
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{
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y = (int)((t - f) / 2 * height);
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nh = h - y * 2;
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}
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Rectangle fromR = new Rectangle(x, y, nw, nh);
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Rectangle toR = new Rectangle(tx, ty, tw, th);
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Bitmap pickedImage = new Bitmap(width, height);
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Graphics pickedG = Graphics.FromImage(pickedImage);
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pickedG.InterpolationMode = InterpolationMode.Low;
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pickedG.SmoothingMode = SmoothingMode.HighSpeed;
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pickedG.DrawImage(InitImage, toR, fromR, GraphicsUnit.Pixel);
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//转图片后转二进制数组
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InitImage = (Image)pickedImage.Clone();
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MemoryStream ms = new MemoryStream();
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ImageCodecInfo icc = GetCodeInfo("1.jpg");
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long quality = 80;
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EncoderParameters ep = new EncoderParameters(1);
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ep.Param[0] = new EncoderParameter(Encoder.Quality, quality);
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InitImage.Save(ms, icc, ep);
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byte[] bytes = ms.ToArray();
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return bytes;
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}
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/// <summary>
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/// 添加线条
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/// </summary>
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/// <param name="img"></param>
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public void AddLineToImage(ref byte[] img)
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{
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MemoryStream ms = new MemoryStream(img);
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var image = (Bitmap)Image.FromStream(ms);
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ms.Close();
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int width = image.Width;
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int height = image.Height;
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if (width < 100 || height < 100)
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return;
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int r = Randomx.GetId(100, 256);
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int b = Randomx.GetId(100, 256);
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int g = Randomx.GetId(100, 256);
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int h = Randomx.GetId(1, 10);
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var c = Color.FromArgb(r, g, b);
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for (int i = 0; i < h; i++)
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{
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for (int j = 0; j < height; j++)
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image.SetPixel(i, j, c);
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for (int j = 0; j < width; j++)
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image.SetPixel(j, i, c);
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}
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for (int i = height - h; i < height; i++)
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{
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for (int j = 0; j < width; j++)
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image.SetPixel(j, i, c);
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}
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for (int i = width - h; i < width; i++)
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{
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for (int j = 0; j < height; j++)
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image.SetPixel(i, j, c);
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}
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ImageCodecInfo icc = GetCodeInfo("1.jpg");
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long quality = 75;
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ms = new MemoryStream();
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EncoderParameters ep = new EncoderParameters(1);
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ep.Param[0] = new EncoderParameter(Encoder.Quality, quality);
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image.Save(ms, icc, ep);
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img = ms.ToArray();
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//FileBase.WriteBytes("1.jpg", bytes);
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}
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/// <summary>
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/// 输出固定大小图片，背景白色填充，返回JPG格式二进制代码
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/// </summary>
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/// <param name="width"></param>
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/// <param name="height"></param>
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/// <param name="maxSize">最大尺寸KB</param>
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/// <param name="qu">图片质量</param>
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/// <returns></returns>
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public byte[] BuildNewSize(int width, int height, int maxSize, long qu=85l)
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{
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if (InitImage == null)
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return null;
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int w = InitImage.Width;
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int h = InitImage.Height;
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int x = 0, y = 0, nw = w, nh = h;
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int tx = 0, ty = 0, tw = width, th = height;
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//先缩放
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if (w <= width && h <= height)//无需缩放
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{
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tx = (width - w) / 2;
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tw = w;
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ty = (height - h) / 2;
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th = h;
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}
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else if (w < width && h > height)
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{
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tx = (width - w) / 2;
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tw = w;
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y = (h - height) / 2;
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nh = height;
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}
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else if (w > width && h < height)
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{
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ty = (height - h) / 2;
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th = h;
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x = (w - width) / 2;
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nw = width;
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}
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else
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{
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double f = w * 1.0 / width;
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double t = h * 1.0 / height;
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if (f == t)//无需变化
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{
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}
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else if (f > t)//宽度较大
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{
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x = (int)(((f - t) / 2) * width);
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nw = w - x * 2;
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}
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else//高度较大
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{
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y = (int)((t - f) / 2 * height);
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nh = h - y * 2;
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}
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}
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Rectangle fromR = new Rectangle(x, y, nw, nh);
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Rectangle toR = new Rectangle(tx, ty, tw, th);
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Bitmap pickedImage = new Bitmap(width, height);
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for (int i = 0; i < pickedImage.Width; i++)
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{
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for (int j = 0; j < pickedImage.Height; j++)
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{
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Color color = Color.FromArgb(255, 255, 255);
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pickedImage.SetPixel(i, j, color);
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}
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}
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Graphics pickedG = Graphics.FromImage(pickedImage);
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pickedG.InterpolationMode = InterpolationMode.Low;
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pickedG.SmoothingMode = SmoothingMode.HighSpeed;
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pickedG.DrawImage(InitImage, toR, fromR, GraphicsUnit.Pixel);
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//转图片后转二进制数组
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Image initImagex = (Image)pickedImage.Clone();
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MemoryStream ms = new MemoryStream();
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ImageCodecInfo icc = GetCodeInfo("1.jpg");
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long quality = maxSize == 1024 ? 75l : 85;
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if (qu > quality)
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quality = qu;
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EncoderParameters ep = new EncoderParameters(1);
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
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initImagex.Save(ms, icc, ep);
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if (ms.Length > maxSize * 1024)
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{
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ms = new MemoryStream();
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 75l);
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initImagex.Save(ms, icc, ep);
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return ms.ToArray();
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}
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if (ms.Length > maxSize * 1024)
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{
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ms = new MemoryStream();
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 55l);
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initImagex.Save(ms, icc, ep);
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return ms.ToArray();
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}
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if (ms.Length > maxSize * 1024)
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{
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return null;
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}
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//ImageCodecInfo icc = GetCodeInfo("1.jpg");
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//initImagex.Save("22.jpg", icc, ep);
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return ms.ToArray();
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}
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public byte[] BuildNewSizeCut(int width, int height, int maxSize, long qu = 85l)
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{
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if (InitImage == null)
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return null;
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int w = InitImage.Width;
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int h = InitImage.Height;
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int x = 0, y = 0, nw = w, nh = h;
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int tx = 0, ty = 0, tw = width, th = height;
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Rectangle fromR = new Rectangle(x, y, nw, nh);
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Rectangle toR = new Rectangle(tx, ty, tw, th);
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Bitmap pickedImage = new Bitmap(width, height);
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for (int i = 0; i < pickedImage.Width; i++)
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{
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for (int j = 0; j < pickedImage.Height; j++)
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{
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Color color = Color.FromArgb(255, 255, 255);
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pickedImage.SetPixel(i, j, color);
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}
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}
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Graphics pickedG = Graphics.FromImage(pickedImage);
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pickedG.InterpolationMode = InterpolationMode.Low;
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pickedG.SmoothingMode = SmoothingMode.HighSpeed;
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pickedG.DrawImage(InitImage, toR, fromR, GraphicsUnit.Pixel);
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//转图片后转二进制数组
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Image initImagex = (Image)pickedImage.Clone();
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MemoryStream ms = new MemoryStream();
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ImageCodecInfo icc = GetCodeInfo("1.jpg");
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long quality = maxSize == 1024 ? 75l : 85;
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if (qu > quality)
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quality = qu;
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EncoderParameters ep = new EncoderParameters(1);
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
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initImagex.Save(ms, icc, ep);
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if (ms.Length > maxSize * 1024)
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{
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ms = new MemoryStream();
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 75l);
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initImagex.Save(ms, icc, ep);
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return ms.ToArray();
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}
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if (ms.Length > maxSize * 1024)
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{
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ms = new MemoryStream();
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 55l);
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initImagex.Save(ms, icc, ep);
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return ms.ToArray();
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}
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if (ms.Length > maxSize * 1024)
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{
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return null;
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}
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//ImageCodecInfo icc = GetCodeInfo("1.jpg");
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//initImagex.Save("22.jpg", icc, ep);
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return ms.ToArray();
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}
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/// <summary>
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/// 根据路径得出图片编码信息
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public ImageCodecInfo GetCodeInfo(string path)
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{
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string exe = path.Split('.')[path.Split('.').Length - 1].ToLower();
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ImageCodecInfo[] icis = ImageCodecInfo.GetImageEncoders();
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ImageCodecInfo ici = null, defCodecInfo = null;
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foreach (ImageCodecInfo i in icis)
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{
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if (i.MimeType == "image/jpeg")
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defCodecInfo = i;
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if ((exe == "jpg" || exe == "jpeg") && i.MimeType == "image/jpeg")
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{
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ici = i;
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}
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if (exe == "bmp" && i.MimeType == "image/bmp")
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{
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ici = i;
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}
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if (exe == "png" && i.MimeType == "image/png")
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{
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ici = i;
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}
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if (exe == "gif" && i.MimeType == "image/gif")
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{
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ici = i;
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}
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}
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if (ici == null)
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ici = defCodecInfo;
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return ici;
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}
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/// <summary>
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/// 获取Image图片格式
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/// </summary>
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/// <param name="_img"></param>
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/// <param name="format"></param>
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/// <returns></returns>
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private System.Drawing.Imaging.ImageFormat GetImageFormat(Image _img, out string format)
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{
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if (_img.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Jpeg))
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{
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format = ".jpg";
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return System.Drawing.Imaging.ImageFormat.Jpeg;
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}
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if (_img.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Gif))
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{
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format = ".gif";
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return System.Drawing.Imaging.ImageFormat.Gif;
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}
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if (_img.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Png))
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{
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format = ".png";
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return System.Drawing.Imaging.ImageFormat.Png;
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}
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if (_img.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Bmp))
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{
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format = ".bmp";
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return System.Drawing.Imaging.ImageFormat.Bmp;
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}
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format = string.Empty;
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return null;
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}
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/// <summary>
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/// 图像缩略图处理
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/// </summary>
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/// <param name="bytes">图像源数据</param>
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/// <param name="compression">压缩质量 1-100</param>
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/// <param name="thumbWidth">缩略图的宽</param>
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/// <param name="thumbHeight">缩略图的高</param>
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/// <returns></returns>
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public static byte[] ConvertToThumbnail(byte[] bytes, int compression = 100, int thumbWidth = 0, int thumbHeight = 0)
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{
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byte[] bs = null;
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if (bytes != null)
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{
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using (MemoryStream ms = new MemoryStream(bytes))
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{
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using (Bitmap srcimg = new Bitmap(ms))
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{
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if (thumbWidth == 0 && thumbHeight == 0)
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{
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thumbWidth = srcimg.Width;
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thumbHeight = srcimg.Height;
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}
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using (Bitmap dstimg = new Bitmap(thumbWidth, thumbHeight))//图片压缩质量
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{
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//从Bitmap创建一个System.Drawing.Graphics对象，用来绘制高质量的缩小图。
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using (Graphics gr = Graphics.FromImage(dstimg))
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{
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//把原始图像绘制成上面所设置宽高的缩小图
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Rectangle rectDestination = new Rectangle(0, 0, thumbWidth, thumbHeight);
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gr.Clear(Color.White);
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gr.CompositingQuality = CompositingQuality.HighQuality;
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gr.SmoothingMode = SmoothingMode.HighQuality;
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gr.InterpolationMode = InterpolationMode.HighQualityBicubic;
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gr.DrawImage(srcimg, rectDestination, 0, 0, srcimg.Width, srcimg.Height, GraphicsUnit.Pixel);
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EncoderParameters ep = new EncoderParameters(1);
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ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, compression);//设置压缩的比例1-100
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ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageEncoders();
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ImageCodecInfo jpegICIinfo = arrayICI.FirstOrDefault(t => t.FormatID == System.Drawing.Imaging.ImageFormat.Jpeg.Guid);
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using (MemoryStream dstms = new MemoryStream())
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{
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if (jpegICIinfo != null)
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{
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dstimg.Save(dstms, jpegICIinfo, ep);
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}
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else
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{
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|
dstimg.Save(dstms, System.Drawing.Imaging.ImageFormat.Jpeg);//保存到内存里
|
|
}
|
|
bs = new Byte[dstms.Length];
|
|
dstms.Position = 0;
|
|
dstms.Read(bs, 0, bs.Length);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return bs;
|
|
}
|
|
|
|
[DllImport("gdi32.dll")]
|
|
public static extern bool DeleteObject(IntPtr hObject);
|
|
/// <summary>
|
|
/// 将Image转换为Ico
|
|
/// </summary>
|
|
/// <param name="image"></param>
|
|
/// <param name="nullTonull"></param>
|
|
/// <returns></returns>
|
|
public static Icon ConvertToIcon(Image image)
|
|
{
|
|
Bitmap bmp = new Bitmap(image);
|
|
IntPtr h = bmp.GetHicon();
|
|
Icon icon = Icon.FromHandle(h);
|
|
DeleteObject(h);
|
|
return icon;
|
|
}
|
|
|
|
|
|
|
|
List<ImagePiex> AllList = new List<ImagePiex>();
|
|
List<ImagePiex> AllColorList = new List<ImagePiex>();
|
|
Dictionary<string, ImagePiex> AllPoint = new Dictionary<string, ImagePiex>();
|
|
|
|
public bool ImageCuteNoLogo()
|
|
{
|
|
var image = (Bitmap)InitImage;
|
|
int width = image.Width;
|
|
int height = image.Height;
|
|
Color cp1 = image.GetPixel(5, 5);
|
|
Color cp2 = image.GetPixel(5, width - 5);
|
|
Color cp3 = image.GetPixel(height - 5, 5);
|
|
Color cp4 = image.GetPixel(height - 5, width - 5);
|
|
if (cp1.R < 250 || cp1.B < 250 || cp1.G < 250
|
|
|| cp2.R < 250 || cp2.B < 250 || cp2.G < 250
|
|
|| cp3.R < 250 || cp3.B < 250 || cp3.G < 250)
|
|
{
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static byte[] BitmapToBytes(Bitmap Bitmap)
|
|
{
|
|
MemoryStream ms = null;
|
|
try
|
|
{
|
|
ms = new MemoryStream();
|
|
Bitmap.Save(ms, Bitmap.RawFormat);
|
|
byte[] byteImage = new Byte[ms.Length];
|
|
byteImage = ms.ToArray();
|
|
return byteImage;
|
|
}
|
|
catch (ArgumentNullException ex)
|
|
{
|
|
throw ex;
|
|
}
|
|
finally
|
|
{
|
|
ms.Close();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 字节数组转换为图片
|
|
/// </summary>
|
|
/// <param name="buffer">字节数组</param>
|
|
/// <returns>图片</returns>
|
|
public static Image BytesToImage(byte[] buffer)
|
|
{
|
|
var ms = new MemoryStream(buffer, 0, buffer.Length);
|
|
Image img = Image.FromStream(ms);
|
|
ms.Dispose();
|
|
return img;
|
|
}
|
|
|
|
/// <summary>
|
|
/// 图片对象转字节数组
|
|
/// </summary>
|
|
/// <param name="imagePath">图片路径</param>
|
|
/// <returns>图片字节数组</returns>
|
|
private byte[] ImageToBytes(string imagePath)
|
|
{
|
|
var fs = new FileStream(imagePath, FileMode.Open);
|
|
byte[] imgBytes = new byte[fs.Length];
|
|
fs.Read(imgBytes, 0, imgBytes.Length);
|
|
fs.Close();
|
|
return imgBytes;
|
|
}
|
|
}
|
|
public class ImagePiex
|
|
{
|
|
public Point point { get; set; }
|
|
public Color color { get; set; }
|
|
public bool Pval = false;
|
|
public bool Used = false;
|
|
public int imgCount = 0;
|
|
}
|
|
|
|
}
|