public static ImageExif ExifInfo(Image img)
{
System.Drawing.Imaging.PropertyItem[] pt = img.PropertyItems;
ImageExif exif = new ImageExif();
for (int i = 0; i < pt.Length; i++)
{
PropertyItem p = pt[i];
switch (pt[i].Id)
{
// 设备制造商 20.
case 0x010F:
exif.Make = System.Text.ASCIIEncoding.ASCII.GetString(pt[i].Value);
break;
case 0x0110: // 设备型号 25.
exif.Model = GetValueOfType2(p.Value);
break;
case 0x0132: // 拍照时间 30.
exif.DateTime = GetValueOfType2(p.Value);
break;
case 0x829A: // .曝光时间
exif.ExposureTime = GetValueOfType5(p.Value) + " sec";
break;
case 0x8827: // ISO 40.
exif.ISO = GetValueOfType3(p.Value);
break;
case 0x010E: // 图像说明info.description
exif.ImageTitle = GetValueOfType2(p.Value);
break;
case 0x920a: //相片的焦距
exif.FocalLength = GetValueOfType5A(p.Value) + " mm";
break;
case 0x829D: //相片的光圈值
exif.Aperture = GetValueOfType5A(p.Value);
break;
case 0x0112: //方向
exif.Orientation = ShortToString(p.Value, 0);
break;
case 0x011A:
exif.XResolution = RationalToSingle(p.Value, 0);
break;
case 0x011B:
exif.YResolution = RationalToSingle(p.Value, 0);
break;
case 0x0128:
exif.ResolutionUnit = RationalToSingle(p.Value, 0);
break;
case 0x0131:
exif.Software = ASCIIToString(p.Value);
break;
case 0x0002:
exif.GPSLatitude = string.Format("{0}°{1}′{2}″", RationalToSingle(p.Value, 0), RationalToSingle(p.Value, 8), RationalToSingle(p.Value, 16));
break;
case 0x0004:
exif.GPSLongitude = string.Format("{0}°{1}′{2}″", RationalToSingle(p.Value, 0), RationalToSingle(p.Value, 8), RationalToSingle(p.Value, 16));
break;
case 0x0006:
exif.GPSAltitude = RationalToSingle(p.Value, 0);
break;
}
}
return(exif);
}
public void GetExifInfo_Tests()
{
var result = ImageExif.GetExifInfo(imagePath);
var re = result;
}
private void button1_Click(object sender, EventArgs e)
{
Image img = Image.FromFile(@"C:\Users\Administrator\Pictures\logo.png");
ImageExif exif = ImageHelper.Exif.GetExifInfo(img);
}
public void GetExifDateTime_Tests()
{
var result = ImageExif.GetExifDateTime(imagePath);
Assert.AreEqual(result, "");
}