☆COLORIZATION by RGB in OPENGL☆

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define  CHANNEL  3// 画像の色数(R, G, B)

int main(int argc,char *argv[])
{
    FILE *fpi,*fpo;
    int i,j,height,width;
    float dn1;
    float *file1;
    unsigned char *file2;
    float data1,data2,data3;
    if(argc!=5)
    {
        fprintf(stderr,"Usage: %s\n(2)Input_READ_filename\n(3)width\n(4)height\n",argv[0]);
        exit(1);
    }

    printf("OPEN FILE NAME:%s\n",argv[1]);

    width = atoi(argv[3]); printf("W = %d,", width);
    height = atoi(argv[4]); printf("H = %d\n", height);

    file1= (float *)malloc(width*height*sizeof(float));
    file2= (unsigned char *)malloc(CHANNEL*width*height*sizeof(char));

    if((fpi=fopen(argv[1],"r"))==NULL)
    {
        fprintf(stderr,"input file open error\n");
        exit(1);
    }
    fread((float *)file1,sizeof(float),width*height,fpi);

    if((fpo=fopen(argv[2],"wb"))==NULL)
    {
        printf("The file can't be opened. The program is exit.\n");

        exit(1);
    }


    for(i=0;i<height;i++)
    {
        for(j=0;j<width;j++)
        {
            dn1=file1[i*width+j];
       if(dn1>=0 && dn1<1.0)
           {
        file2[i*width+j]=204;
        file2[i*width+j+width*height]=0;
        file2[i*width+j+width*height*2]=0;
           }
       else if(dn1>=1.0 && dn1<2.0)
       {
           file2[i*width+j]=183;
           file2[i*width+j+width*height]=65;
           file2[i*width+j+width*height*2]=14;
       }
       else if(dn1>=2.0 && dn1<3.0)
       {
           file2[i*width+j]=235;
           file2[i*width+j+width*height]=121;
           file2[i*width+j+width*height*2]=136;
       }
       else if(dn1>=3.0 && dn1<4.0)
       {
           file2[i*width+j]=239;
           file2[i*width+j+width*height]=161;
           file2[i*width+j+width*height*2]=143;
       }
       else if(dn1>=4.0 && dn1<5.0)
       {
           file2[i*width+j]=229;
           file2[i*width+j+width*height]=152;
           file2[i*width+j+width*height*2]=197;
       }
       else if(dn1>5.0)
       {
           file2[i*width+j]=229;
           file2[i*width+j+width*height]=152;
           file2[i*width+j+width*height*2]=197;
       }

            /*
       else if(dn1>=5.0 && dn1<6.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=6.0 && dn1<7.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=7.0 && dn1<8.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=8.0 && dn1<9.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=9.0 && dn1<10.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=10.0 && dn1<11.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }else if(dn1>=12.0 && dn1<13.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=13.0 && dn1<14.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=14.0 && dn1<15.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=15.0 && dn1<16.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=16.0 && dn1<17.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=17.0 && dn1<18.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=18.0 && dn1<19.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
       else if(dn1>=19.0 && dn1<20.0)
       {
           file2[i*width+j]=1;
           file2[i*width+j+width*height]=1;
           file2[i*width+j+width*height*2]=1;
       }
             */
            fwrite(&file2,sizeof(char),1,fpo);

}
    }}