diff --git a/mmcv/ops/csrc/pytorch/npu/pixel_group_npu.cpp b/mmcv/ops/csrc/pytorch/npu/pixel_group_npu.cpp
index eb937d50fa..075ecf561a 100644
--- a/mmcv/ops/csrc/pytorch/npu/pixel_group_npu.cpp
+++ b/mmcv/ops/csrc/pytorch/npu/pixel_group_npu.cpp
@@ -6,27 +6,34 @@ using namespace std;
 vector<vector<float>> pixel_group_npu(Tensor score, Tensor mask, Tensor embedding,
                                       Tensor kernel_label, Tensor kernel_contour,
                                       int kernel_region_num, float distance_threshold) {
-    TORCH_CHECK(score.dim() == 2, "score.dim() must be 2, but got: ", score.dim());
-    TORCH_CHECK(mask.dim() == 2, "mask.dim() must be 2, but got: ", mask.dim());
-    TORCH_CHECK(embedding.dim() == 3, "embedding.dim() must be 3, but got: ", embedding.dim());
-    TORCH_CHECK(kernel_label.dim() == 2, "kernel_label.dim() must be 2, but got: ", kernel_label.dim());
-    TORCH_CHECK(kernel_contour.dim() == 2, "kernel_contour.dim() must be 2, but got: ", kernel_contour.dim());
+  TORCH_CHECK(score.dim() == 2,
+              "score.dim() must be 2, but got: ", score.dim());
+  TORCH_CHECK(mask.dim() == 2, "mask.dim() must be 2, but got: ", mask.dim());
+  TORCH_CHECK(embedding.dim() == 3,
+              "embedding.dim() must be 3, but got: ", embedding.dim());
+  TORCH_CHECK(kernel_label.dim() == 2,
+              "kernel_label.dim() must be 2, but got: ", kernel_label.dim());
+  TORCH_CHECK(
+      kernel_contour.dim() == 2,
+      "kernel_contour.dim() must be 2, but got: ", kernel_contour.dim());
 
-    auto label_size = kernel_label.sizes();
-    auto height = label_size[0];
-    auto width = label_size[1];
+  auto label_size = kernel_label.sizes();
+  auto height = label_size[0];
+  auto width = label_size[1];
 
-    c10::SmallVector<int64_t, 8> point_vector_size = {kernel_region_num, 2};
-    c10::SmallVector<int64_t, 8> label_updated_size = {height, width};
-    at::Tensor point_vector = at::zeros(point_vector_size, score.options());
-    at::Tensor label_updated = at::empty(label_updated_size, kernel_label.options());
+  c10::SmallVector<int64_t, 8> point_vector_size = {kernel_region_num, 2};
+  c10::SmallVector<int64_t, 8> label_updated_size = {height, width};
+  at::Tensor point_vector = at::zeros(point_vector_size, score.options());
+  at::Tensor label_updated =
+      at::empty(label_updated_size, kernel_label.options());
 
-    EXEC_NPU_CMD(aclnnPixelGroup, score, mask, embedding, kernel_label, kernel_contour,
-                 kernel_region_num, distance_threshold, point_vector, label_updated);
+  EXEC_NPU_CMD(aclnnPixelGroup, score, mask, embedding, kernel_label, kernel_contour,
+               kernel_region_num, distance_threshold,
+               point_vector, label_updated);
 
-    std::vector<std::vector<float>> pixel_assignment(kernel_region_num);
-    at::Tensor point_vector_cpu = point_vector.to(at::kCPU);
-    at::Tensor label_updated_cpu = label_updated.to(at::kCPU);
+  std::vector<std::vector<float>> pixel_assignment(kernel_region_num);
+  at::Tensor point_vector_cpu = point_vector.to(at::kCPU);
+  at::Tensor label_updated_cpu = label_updated.to(at::kCPU);
 
     for (int32_t l = 0; l < kernel_region_num; l++) {
         pixel_assignment[l].push_back(point_vector_cpu[l][0].item<float>());
@@ -48,8 +55,10 @@ vector<vector<float>> pixel_group_npu(Tensor score, Tensor mask, Tensor embeddin
     return pixel_assignment;
 }
 
-vector<vector<float>> pixel_group_impl(Tensor score, Tensor mask, Tensor embedding,
-                                       Tensor kernel_label, Tensor kernel_contour,
-                                       int kernel_region_num, float distance_threshold);
+vector<vector<float>> pixel_group_impl(Tensor score, Tensor mask,
+                                       Tensor embedding, Tensor kernel_label,
+                                       Tensor kernel_contour,
+                                       int kernel_region_num,
+                                       float distance_threshold);
 
-REGISTER_NPU_IMPL(pixel_group_impl, pixel_group_npu);
\ No newline at end of file
+REGISTER_NPU_IMPL(pixel_group_impl, pixel_group_npu);