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POMerging 2 Images Using 2D Arrays as Pixels
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  1. POMerging 2 Images Using 2D Arrays as Pixels
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    copied!<p>I am trying to merge two B&amp;W images based on the following parameters. </p> <p>The new created array use the largest of the two image's width and height as it's own. The int at a specific point in the array contains a number which represents the gray scale amount. The new 2D array will merge the two images based on the following conditions.</p> <ul> <li>If the position exists in both arrays, the value in the results array is the average of the values in array a and b.</li> <li>if the position exists only in array a, the value in the results array is the value in array a</li> <li>if the position exists only in array b, the value in the results array is value in array b</li> <li>if the position is in neither array assign a value of 127 at that position in the results array.</li> </ul> <p>Here is my code. It will not run as it returns an <code>arrayIndexOutOfBounds: 167</code> for some reason. I'd appreciate if someone could look it over.</p> <pre><code>public static int[][] merge(int[][] a, int[][] b) { int biggerx = 0; int biggery = 0; if (a[0].length &gt; b[0].length) { biggery = a[0].length; } else { biggery = b[0].length; } if (a.length &gt; b.length) { biggerx = a.length; } else { biggerx = b.length; } int[][] merged = new int[biggerx][biggery]; for (int x = 0; x &lt; merged.length; x++) { for (int y = 0; y &lt; merged[x].length; y++) { if (x &lt;= a.length &amp;&amp; y &lt;= a[x].length &amp;&amp; x &gt; b.length &amp;&amp; y &gt; b[x].length) { merged[x][y] = a[x][y]; } else if (x &lt;= b.length &amp;&amp; y &lt;= b[x].length &amp;&amp; x &gt; a.length &amp;&amp; y &gt; a[x].length) { merged[x][y] = b[x][y]; } else if (x &lt;= b.length &amp;&amp; y &lt;= b[x].length &amp;&amp; x &lt;= a.length &amp;&amp; y &lt;= a[x].length) { merged[x][y] = ((a[x][y] + b[x][y]) /2); } else { merged[x][y] = 127; } } } return merged; } </code></pre>
 

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