diff --git a/src/MaaCore/Vision/Config/OCRerConfig.cpp b/src/MaaCore/Vision/Config/OCRerConfig.cpp
index 5e27c58109..f37e6b05ee 100644
--- a/src/MaaCore/Vision/Config/OCRerConfig.cpp
+++ b/src/MaaCore/Vision/Config/OCRerConfig.cpp
@@ -61,6 +61,12 @@ void OCRerConfig::set_bin_expansion(int expansion)
     m_params.bin_expansion = expansion;
 }
 
+void asst::OCRerConfig::set_bin_trim_threshold(int left, int right)
+{
+    m_params.bin_left_trim_threshold = left;
+    m_params.bin_right_trim_threshold = right;
+}
+
 void OCRerConfig::_set_task_info(OcrTaskInfo task_info)
 {
     set_required(std::move(task_info.text));
diff --git a/src/MaaCore/Vision/Config/OCRerConfig.h b/src/MaaCore/Vision/Config/OCRerConfig.h
index da387fe480..f753902ba3 100644
--- a/src/MaaCore/Vision/Config/OCRerConfig.h
+++ b/src/MaaCore/Vision/Config/OCRerConfig.h
@@ -22,6 +22,8 @@ namespace asst
             int bin_threshold_lower = 140;
             int bin_threshold_upper = 255;
             int bin_expansion = 2;
+            int bin_left_trim_threshold = 0;
+            int bin_right_trim_threshold = 0;
         };
 
     public:
@@ -42,6 +44,7 @@ namespace asst
 
         void set_bin_threshold(int lower, int upper = 255);
         void set_bin_expansion(int expansion);
+        void set_bin_trim_threshold(int left, int right);
 
     protected:
         virtual void _set_roi(const Rect& roi) = 0;
diff --git a/src/MaaCore/Vision/Miscellaneous/OperBoxImageAnalyzer.cpp b/src/MaaCore/Vision/Miscellaneous/OperBoxImageAnalyzer.cpp
index cc642746f3..2eaf3650df 100644
--- a/src/MaaCore/Vision/Miscellaneous/OperBoxImageAnalyzer.cpp
+++ b/src/MaaCore/Vision/Miscellaneous/OperBoxImageAnalyzer.cpp
@@ -8,8 +8,8 @@
 #include "Vision/BestMatcher.h"
 #include "Vision/Matcher.h"
 #include "Vision/MultiMatcher.h"
-#include "Vision/TemplDetOCRer.h"
 #include "Vision/RegionOCRer.h"
+#include "Vision/TemplDetOCRer.h"
 
 bool asst::OperBoxImageAnalyzer::analyze()
 {
@@ -63,6 +63,8 @@ bool asst::OperBoxImageAnalyzer::opers_analyze()
 
     oper_name_analyzer.set_task_info("OperBoxFlagLV", "OperBoxNameOCR");
     oper_name_analyzer.set_replace(ocr_replace->replace_map, ocr_replace->replace_full);
+    oper_name_analyzer.set_bin_expansion(4);
+    oper_name_analyzer.set_bin_trim_threshold(4, 0);
     const auto& all_opers = BattleData.get_all_oper_names();
     oper_name_analyzer.set_required(std::vector(all_opers.begin(), all_opers.end()));
     if (!oper_name_analyzer.analyze()) {
@@ -84,7 +86,10 @@ bool asst::OperBoxImageAnalyzer::opers_analyze()
         box.own = true;
 
 #ifdef ASST_DEBUG
-        cv::rectangle(m_image_draw, make_rect<cv::Rect>(flag_rect), cv::Scalar(0, 255, 0), 2);
+        cv::rectangle(m_image_draw, make_rect<cv::Rect>(flag_rect), cv::Scalar(0, 255, 0), 1);
+        cv::putText(m_image_draw, std::to_string(oper.flag_score), cv::Point(flag_rect.x + 10, flag_rect.y),
+                    cv::FONT_HERSHEY_SIMPLEX, 0.5, cv::Scalar(0, 0, 255), 1);
+        cv::rectangle(m_image_draw, make_rect<cv::Rect>(oper.rect), cv::Scalar(0, 255, 0), 1);
 #endif
 
         m_result.emplace_back(std::move(box));
@@ -152,6 +157,8 @@ bool asst::OperBoxImageAnalyzer::elite_analyze()
         box.elite = std::stoi(elite);
 #ifdef ASST_DEBUG
         cv::rectangle(m_image_draw, make_rect<cv::Rect>(roi), cv::Scalar(0, 255, 0), 1);
+        cv::putText(m_image_draw, std::to_string(box.elite), cv::Point(roi.x, roi.y - 10), cv::FONT_HERSHEY_SIMPLEX,
+                    0.5, cv::Scalar(0, 0, 255), 2);
 #endif // ASST_DEBUG
     }
     return true;
@@ -182,6 +189,8 @@ bool asst::OperBoxImageAnalyzer::potential_analyze()
         box.potential = std::stoi(potential);
 #ifdef ASST_DEBUG
         cv::rectangle(m_image_draw, make_rect<cv::Rect>(roi), cv::Scalar(0, 255, 0), 1);
+        cv::putText(m_image_draw, std::to_string(box.potential), cv::Point(roi.x, roi.y - 10), cv::FONT_HERSHEY_SIMPLEX,
+                    0.5, cv::Scalar(0, 0, 255), 2);
 #endif // ASST_DEBUG
     }
     return true;
diff --git a/src/MaaCore/Vision/OCRer.h b/src/MaaCore/Vision/OCRer.h
index 73a9e39bd2..48517ef4cb 100644
--- a/src/MaaCore/Vision/OCRer.h
+++ b/src/MaaCore/Vision/OCRer.h
@@ -28,6 +28,7 @@ namespace asst
         // Not working for OCR with detection
         using OCRerConfig::set_bin_expansion;
         using OCRerConfig::set_bin_threshold;
+        using OCRerConfig::set_bin_trim_threshold;
 
     protected:
         void postproc_rect_(Result& res) const;
diff --git a/src/MaaCore/Vision/RegionOCRer.cpp b/src/MaaCore/Vision/RegionOCRer.cpp
index 44d31b33bc..13c614c306 100644
--- a/src/MaaCore/Vision/RegionOCRer.cpp
+++ b/src/MaaCore/Vision/RegionOCRer.cpp
@@ -11,6 +11,10 @@ RegionOCRer::ResultOpt RegionOCRer::analyze() const
     cv::cvtColor(img_roi, img_roi_gray, cv::COLOR_BGR2GRAY);
     cv::Mat bin;
     cv::inRange(img_roi_gray, m_params.bin_threshold_lower, m_params.bin_threshold_upper, bin);
+
+    bin_left_trim(bin);
+    bin_right_trim(bin);
+
     cv::Rect bounding_rect = cv::boundingRect(bin);
     bounding_rect.x += m_roi.x;
     bounding_rect.y += m_roi.y;
@@ -19,7 +23,6 @@ RegionOCRer::ResultOpt RegionOCRer::analyze() const
     if (new_roi.empty()) {
         return std::nullopt;
     }
-    // todo: split
 
     int exp = m_params.bin_expansion;
     if (exp) {
@@ -45,3 +48,53 @@ RegionOCRer::ResultOpt RegionOCRer::analyze() const
     m_result = result->front();
     return m_result;
 }
+
+void asst::RegionOCRer::bin_left_trim(cv::Mat& bin) const
+{
+    if (!m_params.bin_left_trim_threshold) {
+        return;
+    }
+
+    int pre_white_col = 0;
+    for (int i = 0; i < bin.cols; ++i) {
+        bool has_white = false;
+        for (int j = 0; j < bin.rows; ++j) {
+            if (bin.at<uchar>(j, i)) {
+                has_white = true;
+                break;
+            }
+        }
+        if (has_white) {
+            pre_white_col = i;
+        }
+        else if (i - pre_white_col > m_params.bin_left_trim_threshold) {
+            bin.colRange(0, i).setTo(0);
+            break;
+        }
+    }
+}
+
+void asst::RegionOCRer::bin_right_trim(cv::Mat& bin) const
+{
+    if (!m_params.bin_right_trim_threshold) {
+        return;
+    }
+
+    int pre_white_col = bin.cols - 1;
+    for (int i = bin.cols - 1; i >= 0; --i) {
+        bool has_white = false;
+        for (int j = 0; j < bin.rows; ++j) {
+            if (bin.at<uchar>(j, i)) {
+                has_white = true;
+                break;
+            }
+        }
+        if (has_white) {
+            pre_white_col = i;
+        }
+        else if (pre_white_col - i > m_params.bin_right_trim_threshold) {
+            bin.colRange(i, bin.cols).setTo(0);
+            break;
+        }
+    }
+}
diff --git a/src/MaaCore/Vision/RegionOCRer.h b/src/MaaCore/Vision/RegionOCRer.h
index 48504908ad..b28875e42d 100644
--- a/src/MaaCore/Vision/RegionOCRer.h
+++ b/src/MaaCore/Vision/RegionOCRer.h
@@ -21,6 +21,9 @@ namespace asst
         using OCRerConfig::set_without_det;
         virtual void _set_roi(const Rect& roi) override { set_roi(roi); }
 
+        void bin_left_trim(cv::Mat& bin) const;
+        void bin_right_trim(cv::Mat& bin) const;
+
     private:
         // FIXME: 老接口太难重构了，先弄个这玩意兼容下，后续慢慢全删掉
         mutable Result m_result;