diff --git a/deploy/android_demo/app/src/main/cpp/ocr_cls_process.cpp b/deploy/android_demo/app/src/main/cpp/ocr_cls_process.cpp
index d7200666..e7de9b0b 100644
--- a/deploy/android_demo/app/src/main/cpp/ocr_cls_process.cpp
+++ b/deploy/android_demo/app/src/main/cpp/ocr_cls_process.cpp
@@ -20,7 +20,7 @@
 #include <iostream>
 #include <vector>
 
-const std::vector<int> CLS_IMAGE_SHAPE = {3, 32, 100};
+const std::vector<int> CLS_IMAGE_SHAPE = {3, 48, 192};
 
 cv::Mat cls_resize_img(const cv::Mat &img) {
   int imgC = CLS_IMAGE_SHAPE[0];
diff --git a/deploy/android_demo/app/src/main/cpp/ocr_ppredictor.h b/deploy/android_demo/app/src/main/cpp/ocr_ppredictor.h
index 0ec458a4..588f25cb 100644
--- a/deploy/android_demo/app/src/main/cpp/ocr_ppredictor.h
+++ b/deploy/android_demo/app/src/main/cpp/ocr_ppredictor.h
@@ -98,7 +98,7 @@ private:
   * @param origin
   * @return
   */
-  cv::Mat infer_cls(const cv::Mat &origin, float thresh = 0.5);
+  cv::Mat infer_cls(const cv::Mat &origin, float thresh = 0.9);
 
   /**
    * Postprocess or sencod model to extract text
diff --git a/deploy/lite/cls_process.cc b/deploy/lite/cls_process.cc
index f522e4bc..9f5c3e94 100644
--- a/deploy/lite/cls_process.cc
+++ b/deploy/lite/cls_process.cc
@@ -17,7 +17,7 @@
 #include <memory>
 #include <string>
 
-const std::vector<int> rec_image_shape{3, 32, 100};
+const std::vector<int> rec_image_shape{3, 48, 192};
 
 cv::Mat ClsResizeImg(cv::Mat img) {
   int imgC, imgH, imgW;
diff --git a/deploy/lite/ocr_db_crnn.cc b/deploy/lite/ocr_db_crnn.cc
index f3c43ebd..cc06ce86 100644
--- a/deploy/lite/ocr_db_crnn.cc
+++ b/deploy/lite/ocr_db_crnn.cc
@@ -107,7 +107,7 @@ cv::Mat DetResizeImg(const cv::Mat img, int max_size_len,
 }
 
 cv::Mat RunClsModel(cv::Mat img, std::shared_ptr<PaddlePredictor> predictor_cls,
-                    const float thresh = 0.5) {
+                    const float thresh = 0.9) {
   std::vector<float> mean = {0.5f, 0.5f, 0.5f};
   std::vector<float> scale = {1 / 0.5f, 1 / 0.5f, 1 / 0.5f};