71 lines
2.1 KiB
C#
71 lines
2.1 KiB
C#
using BitMiracle.LibTiff.Classic;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Channels;
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using System.Threading.Tasks;
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using System.Xml.Serialization;
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namespace XPrint.Image
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{
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// 定义通道名称映射类
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[XmlRoot("ChannelNames")]
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public class ChannelNameMapping
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{
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[XmlElement("Channel")]
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public List<Channel> Channels { get; set; } = null!;
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}
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public class Channel
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{
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[XmlAttribute("Index")]
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public int Index { get; set; }
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[XmlAttribute("Name")]
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public string Name { get; set; } = null!;
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}
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public class TiffModifier
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{
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public static void RenameCustomChannels(string inputPath, string outputPath, Dictionary<int, string> channelNames)
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{
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using (Tiff tiff = Tiff.Open(inputPath, "r+"))
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{
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if (tiff == null) throw new IOException("无法打开TIFF文件");
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// 遍历所有IFD，修改首IFD的ImageDescription标签
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tiff.SetDirectory(0); // 仅修改首IFD的元数据
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var xmlSerializer = new XmlSerializer(typeof(ChannelNameMapping));
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tiff.ReadEXIFDirectory(0);
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// 构建XML元数据
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var mapping = new ChannelNameMapping
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{
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Channels = new List<Channel>()
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};
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foreach (var kvp in channelNames)
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{
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mapping.Channels.Add(new Channel { Index = kvp.Key, Name = kvp.Value });
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}
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using (StringWriter writer = new StringWriter())
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{
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xmlSerializer.Serialize(writer, mapping);
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string xmlData = writer.ToString();
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// 写入ImageDescription标签（0x010E）
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tiff.SetField(TiffTag.IMAGEDESCRIPTION, xmlData);
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}
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// 保存修改
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tiff.WriteDirectory();
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}
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// 覆盖原文件
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File.Copy(inputPath, outputPath, true);
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}
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}
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}
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