Snippet
// Primitive BMP to ASCII art generator // Reads source.bmp and outputs art.txt // Source must be 24-bit .bmp #include <iostream.h> #include <windows.h> #define MAX_SHADES 10 BITMAPFILEHEADER bfh; BITMAPINFOHEADER bih; RGBTRIPLE *image; DWORD written; HANDLE hfile; int imagesize; char shades[MAX_SHADES] = {'#','$','O','=','+','|','-','^','.',' '}; char return1 = 0x0D; char return2 = 0x0A; int needle = 0; int average_color = 0; int main() { // Open a channel to source file hfile = CreateFile("source.bmp",GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,NULL,NULL); // Read header ReadFile(hfile,&bfh,sizeof(bfh),&written,NULL); ReadFile(hfile,&bih,sizeof(bih),&written,NULL); // Read image imagesize = bih.biSizeImage; image = new RGBTRIPLE[imagesize]; ReadFile(hfile,image,imagesize*sizeof(RGBTRIPLE),&written,NULL); // Close source file CloseHandle(hfile); // Open channel to output hfile = CreateFile("art.txt",GENERIC_WRITE,NULL,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL); // Keeping in mind the image is upside down, convert and write it // It down-samples the image a bit in res too for(int y = bih.biHeight-1;y >= 0;y--) { for(int x = 0;x < bih.biWidth;x++) { // Get the average color average_color = (image[x+y*bih.biWidth].rgbtBlue+image[x+y*bih.biWidth].rgbtRed+image[x+y*bih.biWidth].rgbtGreen)/3; // Convert to a shade of 8 average_color /= (256/MAX_SHADES); if(average_color >= MAX_SHADES) average_color -= 1; // Output WriteFile(hfile,&shades[average_color],1,&written,NULL); //WriteFile(hfile,&shades[average_color],1,&written,NULL); } WriteFile(hfile,&return1,1,&written,NULL); WriteFile(hfile,&return2,1,&written,NULL); } // Close handle to output CloseHandle(hfile); return 0; }
Copy & Paste
|
|