diff --git a/plugins/evaluation/main.py b/plugins/evaluation/main.py
index 62689b7..28acb23 100644
--- a/plugins/evaluation/main.py
+++ b/plugins/evaluation/main.py
@@ -12,7 +12,7 @@ from PyQt5.QtGui import QIcon
 from PyQt5.QtCore import Qt
 from osgeo import gdal
 from rscder.utils.icons import IconInstance 
-from rscder.utils.project import Project, SingleBandRasterLayer
+from rscder.utils.project import Project, ResultPointLayer
 
 def kappa(confusion_matrix):
     pe_rows = np.sum(confusion_matrix, axis=0)
@@ -99,12 +99,12 @@ class EvaluationPlugin(BasicPlugin):
         self.action.triggered.connect(self.show_dialog)
         ActionManager().postop_menu.addAction(self.action)
     
-    def run_alg(self, layer:SingleBandRasterLayer, gt):
+    def run_alg(self, layer:ResultPointLayer, gt):
         if layer is None or gt is None:
             return
         self.send_message.emit('正在进行精度评估...')
 
-        pred_ds = gdal.Open(layer.path)
+        pred_ds = gdal.Open(layer.result_path['path'])
         pred_band = pred_ds.GetRasterBand(1)
         gt_ds = gdal.Open(gt)
         gt_band = gt_ds.GetRasterBand(1)
@@ -137,13 +137,13 @@ class EvaluationPlugin(BasicPlugin):
             gt_block = gt_band.ReadAsArray(*block_offset, *block_size)
             pred_block = pred_block.astype(np.uint8)
             gt_block = gt_block.astype(np.uint8)
-            valid_mask = ((pred_block == 1) | (pred_block == 0)) & ((gt_block == 1) | (gt_block == 0))
+            valid_mask = ((pred_block == 1) | (pred_block == 0)) & ((gt_block >= 1) | (gt_block == 0))
             pred_block = pred_block[valid_mask]
             gt_block = gt_block[valid_mask]
 
             for k in range(2):
                 for l in range(2):
-                    cfm[k,l] += np.sum((pred_block == k) & (gt_block == l))
+                    cfm[k,l] += np.sum((pred_block == k) & (gt_block >= l))
         
         result_path = os.path.join(Project().other_path, f'{layer.name}_{os.path.basename(gt)}_evaluation.txt')
         with open(result_path, 'w', encoding='utf-8') as f:
@@ -178,9 +178,9 @@ class EvaluationPlugin(BasicPlugin):
         dialog.exec_()
         if dialog.result() == QDialog.Accepted:
             layer = dialog.layer_select.current_layer
-            if not isinstance(layer, SingleBandRasterLayer):
-                self.send_message.emit('请选择一个单波段栅格图层')
-                return
+            # if not isinstance(layer, SingleBandRasterLayer):
+            #     self.send_message.emit('请选择一个单波段栅格图层')
+            #     return
             t = Thread(target=self.run_alg, args=(layer, dialog.gt_file))
             t.start()
         
\ No newline at end of file
diff --git a/plugins/misc/table_layer.py b/plugins/misc/table_layer.py
index f3d0f70..0365432 100644
--- a/plugins/misc/table_layer.py
+++ b/plugins/misc/table_layer.py
@@ -39,7 +39,7 @@ def table_layer(pth:str,layer:BasicLayer, name, send_message = None):
                 center_y = center_y * geo[5] + geo [3]
                 f.write(f'{center_x},{center_y},{block_data_xy.mean() * 100},{int(block_data_xy.mean() > 0.5)}\n')
 
-    result_layer = ResultPointLayer(out_csv, enable=True, proj=layer.proj, geo=layer.geo,result_path={})
+    result_layer = ResultPointLayer(out_csv, enable=True, proj=layer.proj, geo=layer.geo,result_path=dict(path=pth))
     # print(result_layer.result_path)
     layer.layer_parent.add_result_layer(result_layer)
     if send_message is not None:
diff --git a/plugins/unsupervised_method/scripts/__init__.py b/plugins/unsupervised_method/scripts/__init__.py
index c432083..0854b37 100644
--- a/plugins/unsupervised_method/scripts/__init__.py
+++ b/plugins/unsupervised_method/scripts/__init__.py
@@ -89,6 +89,7 @@ class BasicCD(AlgFrontend):
             block_xy1 = (start1x, start1y+j * cell_size[1])
             block_xy2 = (start2x, start2y+j*cell_size[1])
             block_xy = (0, j * cell_size[1])
+            
             if block_xy1[1] > end1y or block_xy2[1] > end2y:
                 break
             block_size = (xsize, cell_size[1])
@@ -100,18 +101,24 @@ class BasicCD(AlgFrontend):
                 block_size1 = (xsize, end1y - block_xy1[1])
             if block_xy2[1] + block_size2[1] > end2y:
                 block_size2 = (xsize, end2y - block_xy2[1])
+            
+            if block_size1[0] * block_size1[1] == 0 or block_size2[0] * block_size2[1] == 0:
+                continue
+        
             block_data1 = ds1.ReadAsArray(*block_xy1, *block_size1)
             block_data2 = ds2.ReadAsArray(*block_xy2, *block_size2)
-
+            # if block_data1.shape[0] == 0:
+            #     continue
             if band == 1:
                 block_data1 = block_data1[None, ...]
                 block_data2 = block_data2[None, ...]
             # pdb.set_trace()
+
             block_diff = block_data1.sum(0) - block_data2.sum(0)
             block_diff = block_diff.astype(np.float32)
             block_diff = np.abs(block_diff)
-
-            min_diff = min(min_diff, block_diff[block_diff > 0].min())
+            
+            min_diff = min(min_diff, block_diff[block_diff >= 0].min())
             max_diff = max(max_diff, block_diff.max())
             out_ds.GetRasterBand(1).WriteArray(block_diff, *block_xy)
             if send_message is not None: