Merge pull request datalogics#60 from datalogics-mdawson/OCRAddText

Update Optical Character Recognition samples
datalogics-pgallot · Jun 1, 2021 · 8ecf7ea · 8ecf7ea
2 parents 6ad0293 + 8a3231e
commit 8ecf7ea
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diff --git a/DotNET/Sample_Source/OpticalCharacterRecognition/AddTextToDocument/AddTextToDocument.cs b/DotNET/Sample_Source/OpticalCharacterRecognition/AddTextToDocument/AddTextToDocument.cs
@@ -85,6 +85,12 @@ static void Main(string[] args)
                  //langList.Add(languageTwo);
                  ocrParams.Languages = langList;
 
+                // If the resolution for the images in your document are not
+                // 300 dpi, specify a default resolution here. Specifying a
+                // correct resolution gives better results for OCR, especially
+                // with automatic image preprocessing.
+                // ocrParams.Resolution = 600;
+
                 using (OCREngine ocrEngine = new OCREngine(ocrParams))
                 {
                     //Create a document object using the input file

diff --git a/DotNET/Sample_Source/OpticalCharacterRecognition/AddTextToImage/AddTextToImage.cs b/DotNET/Sample_Source/OpticalCharacterRecognition/AddTextToImage/AddTextToImage.cs
@@ -55,6 +55,11 @@ static void Main(string[] args)
                 //langList.Add(languageTwo);
                 ocrParams.Languages = langList;
 
+                // If your image resolution is not 300 dpi, specify it here. Specifying a
+                // correct resolution gives better results for OCR, especially with
+                // automatic image preprocessing.
+                // ocrParams.Resolution = 600;
+
                 using (OCREngine ocrEngine = new OCREngine(ocrParams))
                 {
                     //Create a document object

diff --git a/DotNETCore/Sample_Source/OpticalCharacterRecognition/AddTextToDocument/AddTextToDocument.cs b/DotNETCore/Sample_Source/OpticalCharacterRecognition/AddTextToDocument/AddTextToDocument.cs
@@ -85,6 +85,12 @@ static void Main(string[] args)
                 //langList.Add(languageTwo);
                 ocrParams.Languages = langList;
 
+                // If the resolution for the images in your document are not
+                // 300 dpi, specify a default resolution here. Specifying a
+                // correct resolution gives better results for OCR, especially
+                // with automatic image preprocessing.
+                // ocrParams.Resolution = 600;
+
                 using (OCREngine ocrEngine = new OCREngine(ocrParams))
                 {
                     //Create a document object using the input file

diff --git a/DotNETCore/Sample_Source/OpticalCharacterRecognition/AddTextToImage/AddTextToImage.cs b/DotNETCore/Sample_Source/OpticalCharacterRecognition/AddTextToImage/AddTextToImage.cs
@@ -55,6 +55,11 @@ static void Main(string[] args)
                 //langList.Add(languageTwo);
                 ocrParams.Languages = langList;
 
+                // If your image resolution is not 300 dpi, specify it here. Specifying a
+                // correct resolution gives better results for OCR, especially with
+                // automatic image preprocessing.
+                // ocrParams.Resolution = 600;
+
                 using (OCREngine ocrEngine = new OCREngine(ocrParams))
                 {
                     //Create a document object

diff --git a/...acterRecognition/AddTextToDocument/src/com/datalogics/PDFL/Samples/AddTextToDocument.java b/...acterRecognition/AddTextToDocument/src/com/datalogics/PDFL/Samples/AddTextToDocument.java
@@ -90,6 +90,12 @@ public static void main(String[] args) {
 
             ocrParams.setLanguages(langList);
 
+            // If the resolution for the images in your document are not
+            // 300 dpi, specify a default resolution here. Specifying a
+            // correct resolution gives better results for OCR, especially
+            // with automatic image preprocessing.
+            // ocrParams.setResolution(600);
+
             OCREngine ocrEngine = new OCREngine(ocrParams);
             // Open a document with a single page.
             Document doc = new Document(sInput);

diff --git a/...alCharacterRecognition/AddTextToImage/src/com/datalogics/PDFL/Samples/AddTextToImage.java b/...alCharacterRecognition/AddTextToImage/src/com/datalogics/PDFL/Samples/AddTextToImage.java
@@ -65,6 +65,11 @@ public static void main(String[] args) {
             //langList.add(languageTwo);
             ocrParams.setLanguages(langList);
 
+            // If your image resolution is not 300 dpi, specify it here. Specifying a
+            // correct resolution gives better results for OCR, especially with
+            // automatic image preprocessing.
+            // ocrParams.setResolution(600);
+
             OCREngine ocrEngine = new OCREngine(ocrParams);
             // Open a document with a single page.
             Document doc = new Document();