We actually support column vector in 2D mode.

src/main/java/azgracompress/cli/ParsedCliOptions.java

@@ -259,10 +259,8 @@ public class ParsedCliOptions {
                             if ((vectorDimension.getX() > 1) && (vectorDimension.getY() == 1)) {
                                 quantizationType = QuantizationType.Vector1D;
                             } else if ((vectorDimension.getX() == 1) && (vectorDimension.getY() > 1)) {
-                                errorOccurred = true;
-                                errorBuilder.append("There is nothing wrong with the vector ").
-                                        append(vectorDimension.toString()).append(
-                                        " but we do not support column vectors yet").append('\n');
+                                // This is actually Vector1D, but Vector2D implementation works here just fine.
+                                quantizationType = QuantizationType.Vector2D;
                             } else {
                                 quantizationType = QuantizationType.Vector2D;
                             }

src/main/java/azgracompress/data/Chunk2D.java

@@ -243,7 +243,6 @@ public class Chunk2D {
         for (int i = 0; i < vectorCount; i++) {
             assert (chunks[i].data.length == vectorSize);
             System.arraycopy(chunks[i].data,0,imageVectors[i],0, vectorSize);
-            //imageVectors[i] = Arrays.copyOf(chunks[i].data, vectorSize);
         }
         return imageVectors;
     }