[問題] 關於C程式處理影像裁切問題
想請問
我現在有一張 275*400 大小的彩色影像
我想要用一個 33*33 大小的罩窗
於影像上任意位置裁切下33*33的彩色影像大小
以下的程式碼有錯
能幫我改一改嗎
------------------------------------------------
#include<stdio.h>
#include<stdlib.h>
#include<iostream>
int main()
{
unsigned char *image;
unsigned char *picture;
FILE *fp,*fc;
int width=275;
int height=400;
int x=0;//選取點位之X座標
int y=0;//選取點位之Y座標
int i;//行數
int n;//列數
printf("請輸入欲裁減位置X:\n");
scanf("%d,&x");
printf("請輸入欲裁減位置y:\n");
scanf("%d,&y");
image=new unsigned char[width*height*3];
picture=new unsigned char[(width)*(height)*3];
fp=fopen("nan.raw","rb");
fread(image,sizeof(unsigned char),width*height*3,fp);
for(n=y+1;n<33;n++)
{
for(i=x+1;i<33;i++)
{
picture[33*n+i]=image[275*(y-1)+(x-1)+275*n+i];
}
}
fc=fopen("1.raw","wb");
fwrite(picture,sizeof(unsigned char),(33)*(33)*3,fc);
printf("press any key to continue!!");
fclose(fp);
fclose(fc);
return 0;
}
----------------------------------------------------------------------------
其中 fwrite(picture,sizeof(unsigned char),(33)*(33)*3,fc);
這行的33*33*3會產生問題
想請大家幫忙了
謝謝
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