diff --git a/generatorRasterSlicesTools/SpacetyTIFFDataStretch2PNG_AC.py b/generatorRasterSlicesTools/SpacetyTIFFDataStretch2PNG_AC.py
index ee34e58..10debc6 100644
--- a/generatorRasterSlicesTools/SpacetyTIFFDataStretch2PNG_AC.py
+++ b/generatorRasterSlicesTools/SpacetyTIFFDataStretch2PNG_AC.py
@@ -70,6 +70,38 @@ def write_envi(im_data, im_geotrans, im_proj, output_path):
     dataset = None  # 关闭文件
 
 
+def write_allExtend(im_data, im_geotrans, im_proj, output_path):
+    """
+    将数组数据写入ENVI格式文件
+    :param im_data: 输入的numpy数组（2D或3D）
+    :param im_geotrans: 仿射变换参数（6元组）
+    :param im_proj: 投影信息（WKT字符串）
+    :param output_path: 输出文件路径（无需扩展名，会自动生成.dat和.hdr）
+    """
+    im_bands = 1
+    im_height, im_width = im_data.shape
+
+    create_options=[
+        "COMPRESS=DEFLATE",
+        "PREDICTOR=2",
+        "ZLEVEL=6",
+        "TILED=YES",
+    ]
+
+    # 创建ENVI格式驱动
+    driver = gdal.GetDriverByName("GTiff")
+    dataset = driver.Create(output_path, im_width, im_height, 1, gdal.GDT_Byte,options=create_options)
+
+    if dataset is not None:
+        dataset.SetGeoTransform(im_geotrans)  # 设置地理变换参数
+        dataset.SetProjection(im_proj)  # 设置投影
+
+    dataset.GetRasterBand(1).WriteArray(im_data)
+
+    dataset.FlushCache()  # 确保数据写入磁盘
+    dataset = None  # 关闭文件
+
+
 def write_tiff(im_data, im_geotrans, im_proj, output_path):
     """
     将数组数据写入ENVI格式文件
@@ -476,7 +508,8 @@ def stretchSliceProcess(infilepath, outfolder,portfilestr, strechmethod):
     im_data = im_data.astype(np.uint8)
     rootname=Path(infilepath).stem
     allImagePath=os.path.join(allpngfolder, rootname+"_all.png")
-    Image.fromarray(im_data).save(allImagePath,compress_level=0)
+    Image.fromarray(im_data).save(allImagePath,compress_level=9)
+    # write_allExtend(im_data, im_Geotrans, im_proj, allImagePath)
     slice_ID=0
     slice_ID=sliceShipDataset(rootname,im_data, src_im_data,im_Geotrans, im_proj, outfolder) # 舰船切片
     slice_ID=slice_ID+1