[转]C#读取EXIF信息类

ExifWorks

using System;

using System.Collections.Generic;

using System.Text;

namespace ExifWorks

{

// Utility class for working with EXIF data in images. Provides abstraction

// for most common data and generic utilities for work with all other.

// Copyright (c) Michal A. Valášek - Altair Communications, 2003-2005

// Copmany: http://software.altaircom.net, E-mail: support@altaircom.net

// Private: http://www.rider.cz, E-mail: rider@rider.cz

// This is free software licensed under GNU Lesser General Public License

// [altair] 10.09.2003 Created

// [altair] 12.06.2004 Added capability to write EXIF data

// [altair] 11.07.2004 Added option to change encoding

// [altair] 04.09.2005 Changed source of Width and Height properties from EXIF to image

// [altair] 05.09.2005 Code clean-up and minor changes

// [marco.ridoni@virgilio.it] 02-11-2006 C# translation

public class ExifManager : IDisposable

{

private System.Drawing.Bitmap _Image;

private System.Text.Encoding _Encoding = System.Text.Encoding.UTF8;

Type declarations

// Initializes new instance of this class.

// Bitmap to read exif information from

// [altair] 10.09.2003 Created

public ExifManager(System.Drawing.Bitmap Bitmap)

{

if (Bitmap == null)

throw new ArgumentNullException("Bitmap");

this._Image = Bitmap;

}

// Initializes new instance of this class.

// Name of file to be loaded

// [altair] 13.06.2004 Created

public ExifManager(string FileName)

{

this._Image = (System.Drawing.Bitmap)System.Drawing.Bitmap.FromFile(FileName);

}

// Get or set encoding used for string metadata

// Encoding used for string metadata

// Default encoding is UTF-8

// [altair] 11.07.2004 Created

// [altair] 05.09.2005 Changed from shared to instance member

public System.Text.Encoding Encoding

{

get

{

return this._Encoding;

}

set

{

if (value == null)

throw new ArgumentNullException();

this._Encoding = value;

}

// Returns copy of bitmap this instance is working on

// [altair] 13.06.2004 Created

public System.Drawing.Bitmap GetBitmap()

{

return (System.Drawing.Bitmap)this._Image.Clone();

}

// Returns all available data in formatted string form

// [altair] 10.09.2003 Created

public override string ToString()

{

System.Text.StringBuilder SB = new StringBuilder();

SB.Append("Image:");

SB.Append("\n\tDimensions: " + this.Width + " x " + this.Height + " px");

SB.Append("\n\tResolution: " + this.ResolutionX + " x " + this.ResolutionY + " dpi");

SB.Append("\n\tOrientation: " + Enum.GetName(typeof(Orientations), this.Orientation));

SB.Append("\n\tTitle: " + this.Title);

SB.Append("\n\tDescription: " + this.Description);

SB.Append("\n\tCopyright: " + this.Copyright);

SB.Append("\nEquipment:");

SB.Append("\n\tMaker: " + this.EquipmentMaker);

SB.Append("\n\tModel: " + this.EquipmentModel);

SB.Append("\n\tSoftware: " + this.Software);

SB.Append("\nDate and time:");

SB.Append("\n\tGeneral: " + this.DateTimeLastModified.ToString());

SB.Append("\n\tOriginal: " + this.DateTimeOriginal.ToString());

SB.Append("\n\tDigitized: " + this.DateTimeDigitized.ToString());

SB.Append("\nShooting conditions:");

SB.Append("\n\tExposure time: " + this.ExposureTime.ToString("N4") + " s");

SB.Append("\n\tExposure program: " + Enum.GetName(typeof(ExposurePrograms), this.ExposureProgram));

SB.Append("\n\tExposure mode: " + Enum.GetName(typeof(ExposureMeteringModes), this.ExposureMeteringMode));

SB.Append("\n\tAperture: F" + this.Aperture.ToString("N2"));

SB.Append("\n\tISO sensitivity: " + this.ISO);

SB.Append("\n\tSubject distance: " + this.SubjectDistance.ToString("N2") + " m");

SB.Append("\n\tFocal length: " + this.FocalLength);

SB.Append("\n\tFlash: " + Enum.GetName(typeof(FlashModes), this.FlashMode));

SB.Append("\n\tLight source (WB): " + Enum.GetName(typeof(LightSources), this.LightSource));

//SB.Replace("\n", vbCrLf);

//SB.Replace("\t", vbTab);

return SB.ToString();

}

Nicely formatted well-known properties

Support methods for working with EXIF properties

" IDisposable implementation "

}

posted on 2009-03-04 20:57 风不平阅读(1180) 评论(0) 编辑收藏举报

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[转]C#读取EXIF信息类

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