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import sys, os
from pathlib import Path
import numpy as np
from PIL import Image
# ==== 可按需改动的常量 ====
IMG_ROOT = "automatic_camera_test_demo"
ANN_ROOT = "automatic_camera_test"
TILE_WIDTH = 512 # 每张缩略图统一宽度
PADDING = 8 # 小图之间的间距（像素）
OUT_PATH = "thumb.png"
def load_rgba(path: Path):
return Image.open(path).convert("RGBA") if path.exists() else None
def resize_w(img: Image.Image, w: int):
if img is None: return None
ow, oh = img.size
if ow == w: return img
nh = int(round(oh * (w / ow)))
return img.resize((w, nh), Image.BICUBIC)
def load_depth_as_img(npy_path: Path, width: int):
if not npy_path.exists(): return None
d = np.load(npy_path)
# 你的深度处理：clip 到 [0, 2048]
np.clip(d, 0.0, 2048.0, out=d)
# 线性映射到 0~255 灰度（2048 对应 255）
d = (d / 2048.0 * 255.0).astype(np.uint8)
img = Image.fromarray(d, mode="L").convert("RGBA")
return resize_w(img, width)
def make_column(rgb, seg, depth, pad=PADDING):
tiles = [x for x in (rgb, seg, depth) if x is not None]
if not tiles: return None
w = max(t.size[0] for t in tiles)
h = sum(t.size[1] for t in tiles) + pad * (len(tiles) - 1)
col = Image.new("RGBA", (w, h), (255, 255, 255, 255))
y = 0
for t in tiles:
col.paste(t, (0, y))
y += t.size[1] + pad
return col
def main():
if len(sys.argv) < 3:
print("用法: python make_thumbs_simple.py <scene_name> <pose1,pose2,...> [out.png]")
print("示例: python make_thumbs_simple.py Hospital_A 0001,0007,0042 thumbs.png")
sys.exit(1)
scene = sys.argv[1]
poses = [p.strip() for p in sys.argv[2].split(",") if p.strip()]
out_path = Path(sys.argv[3]) if len(sys.argv) >= 4 else Path(OUT_PATH)
columns = []
for pose in poses:
rgb_path = Path(IMG_ROOT) / scene / pose / "lit.png"
seg_path = Path(ANN_ROOT) / scene / pose / "seg.png"
depth_path = Path(ANN_ROOT) / scene / pose / "depth.npy"
rgb = resize_w(load_rgba(rgb_path), TILE_WIDTH)
seg = resize_w(load_rgba(seg_path), TILE_WIDTH)
depth = load_depth_as_img(depth_path, TILE_WIDTH)
col = make_column(rgb, seg, depth, PADDING)
if col is None:
print(f"[WARN] 跳过 pose {pose}: 三种文件都缺失")
continue
columns.append(col)
if not columns:
print("[ERROR] 没有任何可用列，检查路径是否正确")
sys.exit(2)
total_w = sum(c.size[0] for c in columns) + PADDING * (len(columns) - 1)
max_h = max(c.size[1] for c in columns)
canvas = Image.new("RGBA", (total_w, max_h), (255, 255, 255, 255))
x = 0
for c in columns:
canvas.paste(c, (x, 0))
x += c.size[0] + PADDING
out_path.parent.mkdir(parents=True, exist_ok=True)
canvas.convert("RGB").save(out_path, "PNG")
print(f"[OK] 已保存: {out_path.resolve()}")
if __name__ == "__main__":
main() |