diff --git a/.gitignore b/.gitignore
index aab52d9..3b1b6d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-*.png
\ No newline at end of file
+*.png
+test_output
+test_output/*
\ No newline at end of file
diff --git a/cp_run.py b/cp_run.py
index 75c6dd6..49d6e43 100644
--- a/cp_run.py
+++ b/cp_run.py
@@ -1,5 +1,8 @@
-from cellpose import models
+from cellpose import models, plot
 from cellpose.io import imread, save_masks
+from PIL import Image
+import numpy as np
+import os, datetime
 
 def test():
     model = models.CellposeModel(gpu=True)
@@ -8,8 +11,21 @@ def test():
     masks, flows, styles = model.eval(
         imgs, flow_threshold=0.4, cellprob_threshold=0.0
     )
+    for i, m in enumerate(masks):
+        print(
+            f"[{i}] mask max={int(getattr(m, 'max', lambda: 0)()) if hasattr(m, 'max') else int(np.max(m))}, unique={np.unique(m)[:5]} ..."
+        )
 
-
+    ts = datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+    outdir = os.path.join(os.path.dirname(__file__), "test_output", ts)
+    os.makedirs(outdir, exist_ok=True)  # 自动创建目录
     for img, mask, flow, name in zip(imgs, masks, flows, files):
-        out = name.rsplit('.', 1)[0] + "_output"
-        save_masks(imgs, mask, flow, out, png=True)
+        base = os.path.join(outdir, os.path.splitext(os.path.basename(name))[0])
+        #使用内置绘图生成蒙版
+        out = base + "_output"
+        save_masks(imgs, mask, flow, out, tif=True)
+
+        # 用 plot 生成彩色叠加图（不依赖 skimage）
+        rgb = plot.image_to_rgb(img, channels=[0, 0])  # 原图转 RGB
+        over = plot.mask_overlay(rgb, masks=mask, colors=None)  # 叠加彩色实例
+        Image.fromarray(over).save(base + "_overlay.png")