diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..aab7fe2
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,8 @@
+{
+    "recommendations": [
+        "vscjava.vscode-java-pack",
+        "esbenp.prettier-vscode",
+        "mosapride.zenkaku",
+        "streetsidesoftware.code-spell-checker"
+    ]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..c075fe7
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,17 @@
+{
+    "editor.formatOnSave": true,
+    "editor.codeActionsOnSave": {
+        "source.organizeImports": true
+    },
+    "[jsonc]": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+    // Extensions - Code Spell Checker
+    "cSpell.ignoreWords": ["endianness", "noflat", "nopix", "omexml"],
+    "cSpell.words": ["bioformats", "imageinfo", "neurodata", "riken"],
+    // Extentions - Prettier
+    "prettier.printWidth": 120,
+    "prettier.singleQuote": true,
+    "prettier.tabWidth": 4,
+    "java.configuration.updateBuildConfiguration": "interactive"
+}
diff --git a/README.md b/README.md
index 0f55a2c..0006fa9 100644
--- a/README.md
+++ b/README.md
@@ -1,27 +1,33 @@
 # BioFormatsImageInfo
+
 Metadata extraction tool based on Bio-Formats
 
 ### make package
+
 ```shell
 mvn package
 ```
 
 ### run
+
 ```shell
 ./target/dist/bin/bioformats-imageinfo "[path to image file]"
 ```
 
 ### run by jar
+
 ```shell
-java -jar ./target/dist/lib/bioformats-imageinfo-1.1.3.jar "[path to image file]"
+java -jar ./target/dist/lib/bioformats-imageinfo-1.1.4.jar "[path to image file]"
 ```
 
 ### run by fat jar
+
 ```shell
-java -jar ./target/bioformats-imageinfo-1.1.3-jar-with-dependencies.jar "[path to image file]"
+java -jar ./target/bioformats-imageinfo-1.1.4-jar-with-dependencies.jar "[path to image file]"
 ```
 
 ### library usage
+
 ```java
 import java.util.LinkedHashMap;
 import java.util.Map;
diff --git a/pom.xml b/pom.xml
index 74394a3..ef75182 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,15 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>jp.riken.neurodata.tools.BioFormatsImageInfo</groupId>
   <artifactId>bioformats-imageinfo</artifactId>
-  <version>1.1.3</version>
+  <version>1.1.4</version>
 
   <name>bioformats-imageinfo</name>
   <url>https://neurodata.riken.jp</url>
 
   <properties>
-    <bio-formats.version>6.12.0</bio-formats.version>
+    <bio-formats.version>6.14.0</bio-formats.version>
     <bioformats-imageinfo.mainClass>jp.riken.neurodata.tools.BioFormatsImageInfo</bioformats-imageinfo.mainClass>
 
     <maven.compiler.source>1.8</maven.compiler.source>
@@ -57,7 +59,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
-        <version>3.5.0</version>
+        <version>3.6.0</version>
         <executions>
           <execution>
             <id>copy-dependencies</id>
@@ -111,7 +113,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>3.5.0</version>
+        <version>3.6.0</version>
         <configuration>
           <descriptorRefs>
             <descriptorRef>jar-with-dependencies</descriptorRef>
@@ -138,7 +140,7 @@
       <plugin>
         <groupId>org.owasp</groupId>
         <artifactId>dependency-check-maven</artifactId>
-        <version>8.2.1</version>
+        <version>8.3.1</version>
         <executions>
           <execution>
             <goals>
@@ -178,4 +180,4 @@
     </repository>
   </repositories>
 
-</project>
+</project>
\ No newline at end of file
diff --git a/src/main/assembly/assembly.xml b/src/main/assembly/assembly.xml
index f117a78..f4bdf21 100644
--- a/src/main/assembly/assembly.xml
+++ b/src/main/assembly/assembly.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
   <id>bin</id>
   <formats>
@@ -32,4 +33,4 @@
       <outputDirectory>lib</outputDirectory>
     </dependencySet>
   </dependencySets>
-</assembly>
+</assembly>
\ No newline at end of file
diff --git a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java
index 9bc3091..0c4615b 100644
--- a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java
+++ b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java
@@ -142,14 +142,14 @@ public class BioFormatsImageInfo {
         final int seriesCount = reader.getSeriesCount();
         for (int j = 0; j < seriesCount; j++) {
             reader.setSeries(j);
-            final Hashtable<String, Object> seriesMagedata = reader.getSeriesMetadata();
-            if (!seriesMagedata.isEmpty()) {
-                final Map<String, Object> seriesMetadata = new LinkedHashMap<String, Object>();
-                final String[] keys = MetadataTools.keys(seriesMagedata);
+            final Hashtable<String, Object> seriesMetadata = reader.getSeriesMetadata();
+            if (!seriesMetadata.isEmpty()) {
+                final Map<String, Object> originalMetadata = new LinkedHashMap<String, Object>();
+                final String[] keys = MetadataTools.keys(seriesMetadata);
                 for (int i = 0; i < keys.length; i++) {
-                    seriesMetadata.put(keys[i], seriesMagedata.get(keys[i]));
+                    originalMetadata.put(keys[i], seriesMetadata.get(keys[i]));
                 }
-                metadata.put(String.format("series[%d]", j), seriesMetadata);
+                metadata.put(String.format("series[%d]", j), originalMetadata);
             }
         }
 
@@ -188,7 +188,7 @@ public class BioFormatsImageInfo {
             // json = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(map);
             json = mapper.writeValueAsString(map);
         } catch (final Throwable e) {
-            // return "null" if conversion error occured
+            // return "null" if conversion error occurred
             json = "null";
         }
 
diff --git a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java
index 94b7941..a820c85 100644
--- a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java
+++ b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java
@@ -27,7 +27,7 @@ import loci.formats.gui.BufferedImageReader;
 
 public class BioFormatsImageThumbnail {
 
-    protected static final float JPEG_QUORITY = 0.85f;
+    protected static final float JPEG_QUALITY = 0.85f;
     protected static final int BACKGROUND_COLOR = 0x000000;
     protected static final double MAXIMUM_SCALE = 2.0;
 
@@ -39,14 +39,14 @@ public class BioFormatsImageThumbnail {
         final double scaleHeight = (double) height / (double) imageHeight;
         double scale = Math.min(scaleWidth, scaleHeight);
         if (scale > MAXIMUM_SCALE) {
-            // limit scalling size to maximum scale
+            // limit scaling size to maximum scale
             scale = MAXIMUM_SCALE;
         }
         int resizeWidth = imageWidth;
         int resizeHeight = imageHeight;
         Image resizeImage = image;
         if (scale != 1.0) {
-            // resize image if dimension is different with requrested dimension.
+            // resize image if dimension is different with requested dimension.
             resizeWidth = (int) (scale * (double) imageWidth);
             resizeHeight = (int) (scale * (double) imageHeight);
             resizeImage = image.getScaledInstance(resizeWidth, resizeHeight, Image.SCALE_AREA_AVERAGING);
@@ -86,8 +86,8 @@ public class BioFormatsImageThumbnail {
     protected static byte[] getJpegByteArray(final BufferedImage image, final float quality, final int matColor)
             throws BioFormatsImageException {
         byte[] ret = null;
-        try (final ByteArrayOutputStream baos = new ByteArrayOutputStream();
-                final ImageOutputStream ios = ImageIO.createImageOutputStream(baos);) {
+        try (final ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                final ImageOutputStream ios = ImageIO.createImageOutputStream(bos);) {
             final ImageWriter writer = ImageIO.getImageWritersByFormatName("jpeg").next();
             final ImageWriteParam param = writer.getDefaultWriteParam();
             if (param.canWriteCompressed()) {
@@ -97,7 +97,7 @@ public class BioFormatsImageThumbnail {
             writer.setOutput(ios);
             writer.write(null, new IIOImage(removeAlphaChannel(image, matColor), null, null), param);
             writer.dispose();
-            ret = baos.toByteArray();
+            ret = bos.toByteArray();
         } catch (final IOException e) {
             throw new BioFormatsImageException(e);
         }
@@ -107,8 +107,8 @@ public class BioFormatsImageThumbnail {
 
     protected static byte[] getPngByteArray(final BufferedImage image) throws BioFormatsImageException {
         byte[] ret = null;
-        try (final ByteArrayOutputStream baos = new ByteArrayOutputStream();
-                final ImageOutputStream ios = ImageIO.createImageOutputStream(baos);) {
+        try (final ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                final ImageOutputStream ios = ImageIO.createImageOutputStream(bos);) {
             final ImageWriter writer = ImageIO.getImageWritersByFormatName("png").next();
             final ImageWriteParam param = writer.getDefaultWriteParam();
             if (param.canWriteCompressed()) {
@@ -118,7 +118,7 @@ public class BioFormatsImageThumbnail {
             writer.setOutput(ios);
             writer.write(null, new IIOImage(image, null, null), param);
             writer.dispose();
-            ret = baos.toByteArray();
+            ret = bos.toByteArray();
         } catch (final IOException e) {
             throw new BioFormatsImageException(e);
         }
@@ -133,7 +133,7 @@ public class BioFormatsImageThumbnail {
                 bytes = getPngByteArray(image);
                 break;
             case "image/jpeg":
-                bytes = getJpegByteArray(image, JPEG_QUORITY, BACKGROUND_COLOR);
+                bytes = getJpegByteArray(image, JPEG_QUALITY, BACKGROUND_COLOR);
                 break;
             default:
                 throw new BioFormatsImageException("Unsupported image format: " + mimeType);
@@ -178,12 +178,12 @@ public class BioFormatsImageThumbnail {
             // System.out.println("series count: " + seriesCount);
             // System.out.println("image count: " + reader.getImageCount());
             // System.out.println("resolution: " + reader.getResolutionCount());
-            // System.out.println("thubmail series: " + series);
+            // System.out.println("thumbnail series: " + series);
             ret = reader.openThumbImage(no);
             final boolean is16bit = reader.getBitsPerPixel() > 8;
             final boolean isGrayScale = ret.getSampleModel().getNumBands() == 1;
             if (is16bit || isGrayScale) {
-                // perform auto scalling if 16bit or gray scale thumbnail image.
+                // perform auto scaling if 16bit or gray scale thumbnail image.
                 ret = AWTImageTools.autoscale(ret);
             }
         } catch (final Throwable t) {