【图片区域识别】OCR指定区域图片自动识别内容重命名，指定图片多个识别区域，识别文字并批量对图片文件改名，基于WPF和腾讯OCR的完整实现方案

<Window x:Class="OCRImageRename.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="OCR图片重命名" Height="450" Width="800">
    <Grid>
        <Button Content="选择图片文件夹" HorizontalAlignment="Left" Margin="20,20,0,0" VerticalAlignment="Top" Width="150" Click="SelectFolderButton_Click"/>
        <TextBox x:Name="FolderPathTextBox" HorizontalAlignment="Left" Height="23" Margin="180,20,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="500" IsReadOnly="True"/>
        <Label Content="识别区域（格式：X,Y,Width,Height 多个区域用分号分隔）" HorizontalAlignment="Left" Margin="20,60,0,0" VerticalAlignment="Top"/>
        <TextBox x:Name="RegionsTextBox" HorizontalAlignment="Left" Height="23" Margin="20,80,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="740"/>
        <Button Content="开始识别重命名" HorizontalAlignment="Left" Margin="20,120,0,0" VerticalAlignment="Top" Width="150" Click="StartRenameButton_Click"/>
        <TextBlock x:Name="StatusTextBlock" HorizontalAlignment="Left" Margin="20,160,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="740"/>
    </Grid>
</Window>

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Windows;
using Microsoft.Win32;
using TencentCloud.Common;
using TencentCloud.Common.Profile;
using TencentCloud.Ocr.V20181119;
using TencentCloud.Ocr.V20181119.Models;

namespace OCRImageRename
{
    public partial class MainWindow : Window
    {
        private string _selectedFolder;

        public MainWindow()
        {
            InitializeComponent();
        }

        private void SelectFolderButton_Click(object sender, RoutedEventArgs e)
        {
            var dialog = new OpenFileDialog();
            dialog.Multiselect = false;
            dialog.CheckFileExists = false;
            dialog.CheckPathExists = true;
            dialog.FileName = "文件夹选择";
            dialog.Filter = "所有文件 (*.*)|*.*";
            dialog.ValidateNames = false;
            if (dialog.ShowDialog() == true)
            {
                _selectedFolder = Path.GetDirectoryName(dialog.FileName);
                FolderPathTextBox.Text = _selectedFolder;
            }
        }

        private void StartRenameButton_Click(object sender, RoutedEventArgs e)
        {
            if (string.IsNullOrEmpty(_selectedFolder))
            {
                MessageBox.Show("请先选择图片文件夹");
                return;
            }

            var regions = ParseRegions(RegionsTextBox.Text);
            if (regions == null || regions.Count == 0)
            {
                MessageBox.Show("请输入有效的识别区域");
                return;
            }

            try
            {
                var imageFiles = Directory.GetFiles(_selectedFolder, "*.jpg;*.png;*.jpeg", SearchOption.TopDirectoryOnly);
                foreach (var imageFile in imageFiles)
                {
                    var ocrResult = PerformOCR(imageFile, regions);
                    var newFileName = string.Join("", ocrResult);
                    if (!string.IsNullOrEmpty(newFileName))
                    {
                        var newFilePath = Path.Combine(_selectedFolder, newFileName + Path.GetExtension(imageFile));
                        File.Move(imageFile, newFilePath);
                        StatusTextBlock.Text += $"已将 {Path.GetFileName(imageFile)} 重命名为 {Path.GetFileName(newFilePath)}\n";
                    }
                }
                MessageBox.Show("重命名完成");
            }
            catch (Exception ex)
            {
                MessageBox.Show($"发生错误：{ex.Message}");
            }
        }

        private List<(int X, int Y, int Width, int Height)> ParseRegions(string input)
        {
            var regions = new List<(int X, int Y, int Width, int Height)>();
            var regionStrings = input.Split(';', StringSplitOptions.RemoveEmptyEntries);
            foreach (var regionString in regionStrings)
            {
                var parts = regionString.Split(',');
                if (parts.Length == 4 && int.TryParse(parts[0], out int x) && int.TryParse(parts[1], out int y) && int.TryParse(parts[2], out int width) && int.TryParse(parts[3], out int height))
                {
                    regions.Add((x, y, width, height));
                }
            }
            return regions;
        }

        private List<string> PerformOCR(string imageFile, List<(int X, int Y, int Width, int Height)> regions)
        {
            var result = new List<string>();
            var cred = new Credential
            {
                SecretId = "your_secret_id",
                SecretKey = "your_secret_key"
            };
            var clientProfile = new ClientProfile();
            var httpProfile = new HttpProfile();
            httpProfile.Endpoint = "ocr.tencentcloudapi.com";
            clientProfile.HttpProfile = httpProfile;
            var client = new OcrClient(cred, "ap-guangzhou", clientProfile);

            var imageBytes = File.ReadAllBytes(imageFile);
            var base64Image = Convert.ToBase64String(imageBytes);

            foreach (var region in regions)
            {
                var req = new GeneralBasicOCRRequest();
                req.ImageBase64 = base64Image;
                req.RegionCoordPoint = new Coord[]
                {
                    new Coord { X = region.X, Y = region.Y },
                    new Coord { X = region.X + region.Width, Y = region.Y },
                    new Coord { X = region.X + region.Width, Y = region.Y + region.Height },
                    new Coord { X = region.X, Y = region.Y + region.Height }
                };

                var resp = client.GeneralBasicOCRSync(req);
                result.AddRange(resp.TextDetections.Select(d => d.DetectedText));
            }

            return result;
        }
    }
}