diff --git a/api-mapper/src/main/java/com/heyu/api/data/utils/ImageInputUtils.java b/api-mapper/src/main/java/com/heyu/api/data/utils/ImageInputUtils.java
index 32498c2..d6ca99d 100644
--- a/api-mapper/src/main/java/com/heyu/api/data/utils/ImageInputUtils.java
+++ b/api-mapper/src/main/java/com/heyu/api/data/utils/ImageInputUtils.java
@@ -19,10 +19,6 @@ public final class ImageInputUtils {
     /** 百度 OCR 建议：Base64 urlencode 前建议不超过 4M */
     private static final int MAX_BASE64_LENGTH = 4 * 1024 * 1024;
     private static final Pattern BASE64_CHARS = Pattern.compile("^[A-Za-z0-9+/=]+$");
-    /** 百度 url 参数建议上限 */
-    private static final int MAX_URL_LENGTH = 1024;
-    /** 百度 image 参数 urlencode 前建议上限（字符数） */
-    private static final int MAX_BASE64_LENGTH = 4 * 1024 * 1024;
 
     private ImageInputUtils() {
     }