笔迹鉴别程序

考试的笔迹鉴别程序，分辨出不同人写的笔迹

测试/本机测试/转换图像文件到jpg/wordrecognize.cpp

@@ -0,0 +1,81 @@
+/* 	程序名：wordrecorgnize.c
+功能：输入文字图像及方格位置。识别含有有效字符的方格
+*/
+
+#include <cv.h>  
+#include <highgui.h> 
+#include <stdlib.h>
+#include <stdio.h>
+#include "Point.h"
+#include "Cword.h"
+
+IplImage* wordrecognize(IplImage* imgbj,int *gridx,int *gridy,Cword *wordbox,int gx,int gy){
+	/*定义变量*/
+    int i,j,ni,numw,nblack=0,wnum=0;
+	//Cword wordbox[150];
+	int sumnum=(gx-1)*(gy-1);
+
+    int height,width,step,channels;
+  	uchar *data;
+
+	/*定义新的图像*/
+	IplImage* imgwzbj = cvCreateImage(cvGetSize(imgbj),imgbj->depth,imgbj->nChannels);
+	cvCopy(imgbj,imgwzbj,NULL);
+	uchar *wzbjdata  = (uchar *)imgwzbj->imageData;
+
+	/* 获取图像信息*/
+  	height    = imgbj->height;  
+  	width     = imgbj->width;	
+  	step      = imgbj->widthStep;	
+  	channels  = imgbj->nChannels;
+  	data      = (uchar *)imgbj->imageData;
+
+	/*开始处理*/
+	for(i=0;i<gx-1;i++)
+		for(j=0;j<gy-1;j++){
+			numw=i*(gy-1)+j+1;         
+			wordbox[numw].wbegin.x=gridx[i];
+			wordbox[numw].wbegin.y=gridy[j];
+			wordbox[numw].wend.x=gridx[i+1];
+			wordbox[numw].wend.y=gridy[j+1];
+			//printf("The %dth word*** \n",numw);
+		}
+     //printf("The %dth word \n",numw);
+     //printf("The sum of words: %d \n",sumnum);
+
+	for(ni=1;ni<=sumnum;ni++){
+		for(i=wordbox[ni].wbegin.x;i<wordbox[ni].wend.x;i++)                  
+			for(j=wordbox[ni].wbegin.y;j<wordbox[ni].wend.y;j++){
+				if(data[i*step+j*channels]==0)        //计算黑色的像素数
+		   		    nblack+=1;
+			}
+    	if(nblack>80){
+			wordbox[ni].isword=true;
+			wnum++;
+			wordbox[ni].nn=wnum;
+
+		    //printf("x= %d;;;y=%d \n",wordbox[ni].wbegin.x,wordbox[ni].wbegin.y);
+            wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+2)*channels]=0;        //标在一幅图上，是文字，标一个+
+            wzbjdata[(wordbox[ni].wbegin.x+1)*step+(wordbox[ni].wbegin.y+2)*channels]=0;
+			wzbjdata[(wordbox[ni].wbegin.x+3)*step+(wordbox[ni].wbegin.y+2)*channels]=0;
+			wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+1)*channels]=0;
+			wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+3)*channels]=0;
+			//wzbjdata[(wordbox[ni].wbegin.x)*step+(wordbox[ni].wbegin.y+2)*channels]=0;
+			//wzbjdata[(wordbox[ni].wbegin.x+4)*step+(wordbox[ni].wbegin.y+2)*channels]=0;
+			//wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y)*channels]=0;
+			//wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+4)*channels]=0;
+		}
+		else{
+			wordbox[ni].isword=false;              
+			
+			wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+2)*channels]=0;        //标在一幅图上，不是文字，标一个-
+            wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+1)*channels]=0;
+			wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+3)*channels]=0;
+			//wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y)*channels]=0;
+			//wzbjdata[(wordbox[ni].wbegin.x+2)*step+(wordbox[ni].wbegin.y+4)*channels]=0;
+		}
+       wordbox[ni].blacknum=nblack;
+	   nblack=0;
+	}
+    return imgwzbj;
+}