BOT_CORNER       1485 src/image.c      img->corners[BOT_CORNER] = -1;  /* Full image */
BOT_CORNER       1655 src/image.c      if (corners && corners[BOT_CORNER] >= 0)
BOT_CORNER       1660 src/image.c          corner_pixels[2] = GET_PIXEL (pimg, corners[RIGHT_CORNER] - 1, corners[BOT_CORNER] - 1);
BOT_CORNER       1661 src/image.c          corner_pixels[3] = GET_PIXEL (pimg, corners[LEFT_CORNER], corners[BOT_CORNER] - 1);
BOT_CORNER       9222 src/image.c      img->corners[BOT_CORNER]
BOT_CORNER       9266 src/image.c      for (y = img->corners[BOT_CORNER]; y < height; ++y)
BOT_CORNER       9270 src/image.c      for (y = img->corners[TOP_CORNER]; y < img->corners[BOT_CORNER]; ++y)
BOT_CORNER       9865 src/image.c      img->corners[BOT_CORNER]