diff --git a/google/cloud/vision/v1/image_annotator.proto b/google/cloud/vision/v1/image_annotator.proto
index e75ca766..7f13e35c 100644
--- a/google/cloud/vision/v1/image_annotator.proto
+++ b/google/cloud/vision/v1/image_annotator.proto
@@ -664,6 +664,16 @@ message WebDetectionParams {
   bool include_geo_results = 2;
 }
 
+// Parameters for text detections. This is used to control TEXT_DETECTION and
+// DOCUMENT_TEXT_DETECTION features.
+message TextDetectionParams {
+
+  // By default, Cloud Vision API only includes confidence score for
+  // DOCUMENT_TEXT_DETECTION result. Set the flag to true to include confidence
+  // score for TEXT_DETECTION as well.
+  bool enable_text_detection_confidence_score = 9;
+}
+
 // Image context and/or feature-specific parameters.
 message ImageContext {
   // Not used.
@@ -687,6 +697,9 @@ message ImageContext {
 
   // Parameters for web detection.
   WebDetectionParams web_detection_params = 6;
+
+  // Parameters for text detection and document text detection.
+  TextDetectionParams text_detection_params = 12;
 }
 
 // Request for performing Google Cloud Vision API tasks over a user-provided
diff --git a/google/cloud/vision/v1p1beta1/image_annotator.proto b/google/cloud/vision/v1p1beta1/image_annotator.proto
index 4f5ada70..daf6a2d2 100644
--- a/google/cloud/vision/v1p1beta1/image_annotator.proto
+++ b/google/cloud/vision/v1p1beta1/image_annotator.proto
@@ -490,6 +490,16 @@ message WebDetectionParams {
   bool include_geo_results = 2;
 }
 
+// Parameters for text detections. This is used to control TEXT_DETECTION and
+// DOCUMENT_TEXT_DETECTION features.
+message TextDetectionParams {
+
+  // By default, Cloud Vision API only includes confidence score for
+  // DOCUMENT_TEXT_DETECTION result. Set the flag to true to include confidence
+  // score for TEXT_DETECTION as well.
+  bool enable_text_detection_confidence_score = 9;
+}
+
 // Image context and/or feature-specific parameters.
 message ImageContext {
   // lat/long rectangle that specifies the location of the image.
@@ -510,6 +520,9 @@ message ImageContext {
 
   // Parameters for web detection.
   WebDetectionParams web_detection_params = 6;
+
+  // Parameters for text detection and document text detection.
+  TextDetectionParams text_detection_params = 12;
 }
 
 // Request for performing Google Cloud Vision API tasks over a user-provided
diff --git a/google/cloud/vision/v1p2beta1/image_annotator.proto b/google/cloud/vision/v1p2beta1/image_annotator.proto
index 87ae9f2c..eaf5abf0 100644
--- a/google/cloud/vision/v1p2beta1/image_annotator.proto
+++ b/google/cloud/vision/v1p2beta1/image_annotator.proto
@@ -521,6 +521,16 @@ message WebDetectionParams {
   bool include_geo_results = 2;
 }
 
+// Parameters for text detections. This is used to control TEXT_DETECTION and
+// DOCUMENT_TEXT_DETECTION features.
+message TextDetectionParams {
+
+  // By default, Cloud Vision API only includes confidence score for
+  // DOCUMENT_TEXT_DETECTION result. Set the flag to true to include confidence
+  // score for TEXT_DETECTION as well.
+  bool enable_text_detection_confidence_score = 9;
+}
+
 // Image context and/or feature-specific parameters.
 message ImageContext {
   // Not used.
@@ -541,6 +551,9 @@ message ImageContext {
 
   // Parameters for web detection.
   WebDetectionParams web_detection_params = 6;
+
+  // Parameters for text detection and document text detection.
+  TextDetectionParams text_detection_params = 12;
 }
 
 // Request for performing Google Cloud Vision API tasks over a user-provided
diff --git a/google/cloud/vision/v1p3beta1/image_annotator.proto b/google/cloud/vision/v1p3beta1/image_annotator.proto
index b63aa2b2..c865ff53 100644
--- a/google/cloud/vision/v1p3beta1/image_annotator.proto
+++ b/google/cloud/vision/v1p3beta1/image_annotator.proto
@@ -549,6 +549,16 @@ message WebDetectionParams {
   bool include_geo_results = 2;
 }
 
+// Parameters for text detections. This is used to control TEXT_DETECTION and
+// DOCUMENT_TEXT_DETECTION features.
+message TextDetectionParams {
+
+  // By default, Cloud Vision API only includes confidence score for
+  // DOCUMENT_TEXT_DETECTION result. Set the flag to true to include confidence
+  // score for TEXT_DETECTION as well.
+  bool enable_text_detection_confidence_score = 9;
+}
+
 // Image context and/or feature-specific parameters.
 message ImageContext {
   // Not used.
@@ -572,6 +582,9 @@ message ImageContext {
 
   // Parameters for web detection.
   WebDetectionParams web_detection_params = 6;
+
+  // Parameters for text detection and document text detection.
+  TextDetectionParams text_detection_params = 12;
 }
 
 // Request for performing Google Cloud Vision API tasks over a user-provided
diff --git a/google/cloud/vision/v1p4beta1/image_annotator.proto b/google/cloud/vision/v1p4beta1/image_annotator.proto
index 9c18cccd..07217f39 100644
--- a/google/cloud/vision/v1p4beta1/image_annotator.proto
+++ b/google/cloud/vision/v1p4beta1/image_annotator.proto
@@ -620,6 +620,16 @@ message WebDetectionParams {
   bool include_geo_results = 2;
 }
 
+// Parameters for text detections. This is used to control TEXT_DETECTION and
+// DOCUMENT_TEXT_DETECTION features.
+message TextDetectionParams {
+
+  // By default, Cloud Vision API only includes confidence score for
+  // DOCUMENT_TEXT_DETECTION result. Set the flag to true to include confidence
+  // score for TEXT_DETECTION as well.
+  bool enable_text_detection_confidence_score = 9;
+}
+
 // Image context and/or feature-specific parameters.
 message ImageContext {
   // Not used.
@@ -646,6 +656,9 @@ message ImageContext {
 
   // Parameters for web detection.
   WebDetectionParams web_detection_params = 6;
+
+  // Parameters for text detection and document text detection.
+  TextDetectionParams text_detection_params = 12;
 }
 
 // Request for performing Google Cloud Vision API tasks over a user-provided