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| using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
namespace ImgCodeToStrTest
{
public class ImgCodeToStrHelper
{
private const String host = "https://ocrapi-document.taobao.com";
private const String path = "/ocrservice/document";
private const String method = "POST";
private const String appcode = "xxxx";
public static string ImgCodeToStr(string base64)
{
String querys = "";
String bodys = "{\"img\":\" "+ base64 + "\",\"url\":\"\",\"prob\":false}";
String url = host + path;
HttpWebRequest httpRequest = null;
HttpWebResponse httpResponse = null;
if (0 < querys.Length)
{
url = url + "?" + querys;
}
if (host.Contains("https://"))
{
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
httpRequest = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url));
}
else
{
httpRequest = (HttpWebRequest)WebRequest.Create(url);
}
httpRequest.Method = method;
httpRequest.Headers.Add("Authorization", "APPCODE " + appcode);
//根据API的要求，定义相对应的Content-Type
httpRequest.ContentType = "application/json; charset=UTF-8";
if (0 < bodys.Length)
{
byte[] data = Encoding.UTF8.GetBytes(bodys);
using (Stream stream = httpRequest.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
}
try
{
httpResponse = (HttpWebResponse)httpRequest.GetResponse();
}
catch (WebException ex)
{
httpResponse = (HttpWebResponse)ex.Response;
}
Stream st = httpResponse.GetResponseStream();
StreamReader reader = new StreamReader(st, Encoding.GetEncoding("utf-8"));
return reader.ReadToEnd();
}
public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{
return true;
}
public static string ImgToBase64(string filePath)
{
//用streamread读这个文件
System.IO.StreamReader sr = new StreamReader(filePath, Encoding.Default, true);
int index;
//实例化一个内存流
System.IO.MemoryStream tempStream = new MemoryStream();
//将流转换为字节数组
while ((index = sr.BaseStream.ReadByte()) != -1)
{
tempStream.WriteByte(((byte)index));
}
byte[] array = tempStream.ToArray();
tempStream.Close();
//将得到的字节数组转换为base64位编码
string result = Convert.ToBase64String(array);
return result;
}
/// <summary>
/// 计算bitmap某一区域内argb的数量
/// </summary>
/// <param name="bitmap">图片</param>
/// <param name="argb">rgb值</param>
/// <param name="point">起始点</param>
/// <param name="width">横向宽度</param>
/// <param name="height">纵向宽度</param>
/// <returns>rgb像素点的数量</returns>
public static int bmpSum(Bitmap bitmap, int argb, Point point, int width = 50, int height = 50)
{
int count = 0, x, y;
Color pixel;
for (x = 0; x < width; x++)
{
for (y = 0; y < height; y++)
{
pixel = bitmap.GetPixel(x + point.X, y + point.Y);//获取当前像素的值
if (pixel.ToArgb() == argb)
{
count++;
}
}
}
return count;
}
public static int bmpSum(Bitmap bitmap,out char RroB)
{
int redCount = 0,blackCount=0, x, y;
Color pixel;
for (x = 0; x < bitmap.Width; x++)
{
for (y = 0; y < bitmap.Height; y++)
{
pixel = bitmap.GetPixel(x , y);//获取当前像素的值
if (pixel.R > 165 && pixel.R < 190)
{
redCount++;
}
else if (pixel.R > 5 && pixel.R < 60)
{
blackCount++;
}
}
}
if (redCount> blackCount)
{
RroB = 'R';
return redCount;
}
else
{
RroB = 'B';
return blackCount;
}
}
/// <summary>
/// 对bitmap进行剪裁
/// </summary>
/// <param name="bitmap">图片</param>
/// <param name="point">剪裁的起点</param>
/// <param name="width">剪裁的宽度</param>
/// <param name="height">剪裁的高度</param>
/// <returns>剪裁后的图片</returns>
public static Bitmap bmpCut(Bitmap bitmap, Bitmap newbmp,int x, int y, int width, int height)
{
Color pixel;
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
pixel = bitmap.GetPixel(x + i, y + j);
newbmp.SetPixel(i, j, Color.FromArgb(pixel.R, pixel.G, pixel.B));
}
}
return newbmp;
}
public static Bitmap bmpCutSum(Bitmap bitmap, Bitmap newbmp, Point point, int width, int height)
{
//Bitmap newbmp = new Bitmap(width, height);
int x, y;
Color pixel;
for (x = 0; x < width; x++)
{
for (y = 0; y < height; y++)
{
pixel = bitmap.GetPixel(x + point.X, y + point.Y);
newbmp.SetPixel(x , y, Color.FromArgb(pixel.R, pixel.G, pixel.B));
}
}
return newbmp;
}
/// <summary>
/// 阈值设置
/// </summary>
/// <param name="sum"></param>
/// <returns></returns>
public static string bmpSumToAction(int sum, char RorB)
{
if (sum >= 705 && RorB == 'B')
{
return "梅花";
}
if (sum < 705 && RorB == 'B')
{
return "黑桃";
}
if (sum >= 630 && RorB == 'R')
{
return "红桃";
}
if (sum < 630 && RorB == 'R')
{
return "方块";
}
return "未知";
}
}
}
|
