24-bit bitmap bmp converted to characters

1#include <cstdio>2#include <cstring>3#include <stdint.h>4#include <windows.h>5 int32_t width,height;6Rgbquad *pixels;7 BOOLOpenbitmap (Char Const*filename)8 {9FILE *file = fopen (filename,"RB");Ten     if(file) One     { AWidth=0; -height=0; - Bitmapfileheader BF; the bitmapinfoheader bi; -Fread (&AMP;BF,sizeof(BF),1, file); -Fread (&bi,sizeof(BI),1, file); -         if(bi.bibitcount!= -) +             return false; -         if(bi.bicompression!=Bi_rgb) +             return false; AWidth=Bi.biwidth; atheight=Bi.biheight; -pixels=Newrgbquad[width*height]; -uint32_t rowsize = (Bi.bibitcount * width + to) / +*4; -uint8_t *line =NewUint8_t[rowsize]; -          for(inty =0; Y < height; y++) -         { inFread (line, Rowsize,1, file); -              for(intx =0; x < width; X + +) to             { +uint8_t *color = line + x *3; -Rgbquad *pixel = &pixels[(height-y-1) * width+x]; thePixel->rgbblue = color[0]; *Pixel->rgbgreen = color[1]; $pixel->rgbred = color[2];Panax Notoginseng             } -         } the         Delete[] line; + fclose (file); A         return true; the     } +     return false; - } $Rgbquad GetColor (intXintYintWinth) $ { -     intR =0, G =0, B =0; -      for(inti =0; i < W; i++) the     { -         if(i + x >= width)Continue;Wuyi          for(intj =0; J < H; J + +) the         { -             if(j + Y >= height)Continue; WuRgbquadConst& color = pixels[(y + j) * Width + (x +i)]; -R + =color.rgbred; AboutG + =Color.rgbgreen; $B + =Color.rgbblue; -         } -     } -     returnRgbquad{r/(W * h), G/(W * h), b/(W *h)}; A } + CharColortocharacter (RgbquadConst&color) the { -     intBrightness = (color.rgbred + color.rgbgreen + color.rgbblue)/3; $     Static Char Const*characters ="qo0v1,:*-."; the     intCount =strlen (characters); the     intspan =0xFF/count; the     intCIDX = Brightness/span; the     if(CIDX = =count) -cidx--; in     returnCharacters[cidx]; the } the voidOutputascii (Const Char* FileName,intWinth) About { theFILE *file=fopen (filename,"W"); the     intx = width/W; the     inty = height/h; +      for(inti =0; i < height; i + =y) -     { the          for(intj =0; J < width; J + =x)Bayi         { theRgbquad color =GetColor (J, I, X, y); thefprintf (file,"%c", Colortocharacter (color)); -             //printf ("%c", Colortocharacter (color)); -         } thefprintf (file,"\ n"); the         //printf ("\ n"); the     } the } - intMain () the { the     if(Openbitmap ("a.bmp")) theOutputascii ("a.txt", width/6, height/ A);94     return 0; the}

24-bit bitmap bmp converted to characters