整理图片操作工具类

Azylee.Utils/Azylee.Core/IOUtils/ImageUtils/ExifHelper.cs

@@ -6,7 +6,7 @@ using System;
 using System.Drawing;
 using System.Text;
 
-namespace Azylee.Core.IOUtils.ImageUtils
+namespace Azylee.Core.IOUtils.ExifUtils
 {
     public class ExifHelper : IDisposable
     {

Azylee.Utils/Azylee.Core/IOUtils/ImageUtils/ExifTagNames.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 
-namespace Azylee.Core.IOUtils.ImageUtils
+namespace Azylee.Core.IOUtils.ExifUtils
 {
     public enum ExifTagNames : int
     {

Azylee.Utils/Azylee.Core/IOUtils/ImageUtils/ImageHelper.cs

@@ -87,58 +87,5 @@ namespace Azylee.Core.IOUtils.ImageUtils
                 g.Dispose();
             }
         }
-        /// <summary>
-        /// 逆时针旋转图像
-        /// </summary>
-        /// <param name="originalImagePath">原始图像路径</param>
-        /// <param name="saveImagePath">保存图像的路径</param>
-        /// <param name = "angle" > 旋转角度[0, 360](前台给的) </ param >
-        /// <returns></returns>
-        public static bool RotateImg(string originalImagePath, string saveImagePath, int angle)
-        {
-            Image originalImage = Image.FromFile(originalImagePath);
-            angle = angle % 360;
-            //弧度转换  
-            double radian = angle * Math.PI / 180.0;
-            double cos = Math.Cos(radian);
-            double sin = Math.Sin(radian);
-            //原图的宽和高  
-            int w = originalImage.Width;
-            int h = originalImage.Height;
-            int W = (int)(Math.Max(Math.Abs(w * cos - h * sin), Math.Abs(w * cos + h * sin)));
-            int H = (int)(Math.Max(Math.Abs(w * sin - h * cos), Math.Abs(w * sin + h * cos)));
-            //目标位图  
-            Bitmap saveImage = new Bitmap(W, H);
-            Graphics g = Graphics.FromImage(saveImage);
-            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Bilinear;
-            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
-            //计算偏移量  
-            Point Offset = new Point((W - w) / 2, (H - h) / 2);
-            //构造图像显示区域：让图像的中心与窗口的中心点一致  
-            Rectangle rect = new Rectangle(Offset.X, Offset.Y, w, h);
-            Point center = new Point(rect.X + rect.Width / 2, rect.Y + rect.Height / 2);
-            g.TranslateTransform(center.X, center.Y);
-            g.RotateTransform(360 - angle);
-            //恢复图像在水平和垂直方向的平移  
-            g.TranslateTransform(-center.X, -center.Y);
-            g.DrawImage(originalImage, rect);
-            //重至绘图的所有变换  
-            g.ResetTransform();
-            g.Save();
-            //保存旋转后的图片  
-            originalImage.Dispose();
-            try
-            {
-                saveImage.Save(saveImagePath, System.Drawing.Imaging.ImageFormat.Jpeg);
-                return true;
-            }
-            catch (Exception e) { return false; }
-            finally
-            {
-                originalImage.Dispose();
-                saveImage.Dispose();
-                g.Dispose();
-            }
-        }
     }
 }

Azylee.Utils/Azylee.Core/IOUtils/ImageUtils/RotateImageTool.cs

@@ -0,0 +1,117 @@
+using Azylee.Core.IOUtils.ExifUtils;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+
+namespace Azylee.Core.IOUtils.ImageUtils
+{
+    public static class RotateImageTool
+    {
+        /// <summary>
+        /// 旋转照片
+        /// </summary>
+        /// <param name="originalImagePath"></param>
+        /// <param name="saveImagePath"></param>
+        /// <returns></returns>
+        public static bool RotateImg(string originalImagePath, string saveImagePath)
+        { 
+            Image img = Image.FromFile(originalImagePath);
+            var exif = img.PropertyItems;
+            byte orien = 0;
+            var item = exif.Where(m => m.Id == 274).ToArray();
+            if (item.Length > 0)
+                orien = item[0].Value[0];
+            switch (orien)
+            {
+                case 2:
+                    img.RotateFlip(RotateFlipType.RotateNoneFlipX);//horizontal flip
+                    break;
+                case 3:
+                    img.RotateFlip(RotateFlipType.Rotate180FlipNone);//right-top
+                    break;
+                case 4:
+                    img.RotateFlip(RotateFlipType.RotateNoneFlipY);//vertical flip
+                    break;
+                case 5:
+                    img.RotateFlip(RotateFlipType.Rotate90FlipX);
+                    break;
+                case 6:
+                    img.RotateFlip(RotateFlipType.Rotate90FlipNone);//right-top
+                    break;
+                case 7:
+                    img.RotateFlip(RotateFlipType.Rotate270FlipX);
+                    break;
+                case 8:
+                    img.RotateFlip(RotateFlipType.Rotate270FlipNone);//left-bottom
+                    break;
+                default:
+                    break;
+            } 
+            try
+            {
+                img.Save(saveImagePath, System.Drawing.Imaging.ImageFormat.Jpeg);
+                return true;
+            }
+            catch (Exception e) { return false; }
+            finally
+            {
+                img.Dispose();
+            }
+        }
+        /// <summary>
+        /// 逆时针旋转图像
+        /// </summary>
+        /// <param name="originalImagePath">原始图像路径</param>
+        /// <param name="saveImagePath">保存图像的路径</param>
+        /// <param name = "angle" > 旋转角度[0, 360](前台给的) </ param >
+        /// <returns></returns>
+        public static bool RotateImg(string originalImagePath, string saveImagePath, int angle)
+        {
+            Image originalImage = Image.FromFile(originalImagePath);
+            angle = angle % 360;
+            //弧度转换  
+            double radian = angle * Math.PI / 180.0;
+            double cos = Math.Cos(radian);
+            double sin = Math.Sin(radian);
+            //原图的宽和高  
+            int w = originalImage.Width;
+            int h = originalImage.Height;
+            int W = (int)(Math.Max(Math.Abs(w * cos - h * sin), Math.Abs(w * cos + h * sin)));
+            int H = (int)(Math.Max(Math.Abs(w * sin - h * cos), Math.Abs(w * sin + h * cos)));
+            //目标位图  
+            Bitmap saveImage = new Bitmap(W, H);
+            Graphics g = Graphics.FromImage(saveImage);
+            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Bilinear;
+            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
+            //计算偏移量  
+            Point Offset = new Point((W - w) / 2, (H - h) / 2);
+            //构造图像显示区域：让图像的中心与窗口的中心点一致  
+            Rectangle rect = new Rectangle(Offset.X, Offset.Y, w, h);
+            Point center = new Point(rect.X + rect.Width / 2, rect.Y + rect.Height / 2);
+            g.TranslateTransform(center.X, center.Y);
+            g.RotateTransform(360 - angle);
+            //恢复图像在水平和垂直方向的平移  
+            g.TranslateTransform(-center.X, -center.Y);
+            g.DrawImage(originalImage, rect);
+            //重至绘图的所有变换  
+            g.ResetTransform();
+            g.Save();
+            //保存旋转后的图片  
+            originalImage.Dispose();
+            try
+            {
+                saveImage.Save(saveImagePath, System.Drawing.Imaging.ImageFormat.Jpeg);
+                return true;
+            }
+            catch (Exception e) { return false; }
+            finally
+            {
+                originalImage.Dispose();
+                saveImage.Dispose();
+                g.Dispose();
+            }
+        }
+    }
+}

Azylee.Utils/Tests/Test.YeahWeb/Program.cs

@@ -1,4 +1,5 @@
-using Azylee.YeahWeb.BaiDuWebAPI.GPSAPI;
+using Azylee.Core.IOUtils.ImageUtils;
+using Azylee.YeahWeb.BaiDuWebAPI.GPSAPI;
 using System;
 using System.Collections.Generic;
 using System.Linq;