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<blockquote data-quote="kiwijunglist" data-source="post: 915996" data-attributes="member: 76888">yeah scaling/overscan/underscan scales the picture by shrinking or adding a border, but it doesn't change the output resolution just the picture resolution. To achieve 1:1 pixel mapping (which is what you mean by pixel perfect&quot; you have to set overscan/underscan to 0%, then adjust any TV settings so that you can see the whole picture. On A samsung TV this is called &quot;Just Scan&quot; in the picture settings menu.&nbsp;Here is the best test pattern&nbsp;<img src="http://www.post76.com/discuss/attachments/forumid_5/0812240919c4060853512dad48.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />&nbsp;<a href="http://www.post76.com/discuss/attachments/forumid_5/0812240919c4060853512dad48.gif" target="_blank">http://www.post76.com/discuss/attachments/forumid_5/0812240919c4060853512dad48.gif</a>&nbsp;The best way to view the tiger dave test pattern is to set it as the desktop background (as you have to view at 100% zoom for it to actually work.&nbsp;[ATTACH=full]111054[/ATTACH]^ view this 1:1 picture on your desktop PC using your LCD monitor (which I assume has 1:1 mapping, and you will be able to see what the test pattern should look like on your TV with and without 1:1 mapping.&nbsp;<a href="http://upload.wikimedia.org/wikipedia/commons/1/15/Effects_of_overscan_on_fixed-pixel_displays.png" target="_blank">http://upload.wikimedia.org/wikipedia/commons/1/15/Effects_of_overscan_on_fixed-pixel_displays.png</a></blockquote>

[QUOTE="kiwijunglist, post: 915996, member: 76888"] yeah scaling/overscan/underscan scales the picture by shrinking or adding a border, but it doesn't change the output resolution just the picture resolution. To achieve 1:1 pixel mapping (which is what you mean by pixel perfect" you have to set overscan/underscan to 0%, then adjust any TV settings so that you can see the whole picture. On A samsung TV this is called "Just Scan" in the picture settings menu. Here is the best test pattern [IMG]http://www.post76.com/discuss/attachments/forumid_5/0812240919c4060853512dad48.gif[/IMG] [url]http://www.post76.com/discuss/attachments/forumid_5/0812240919c4060853512dad48.gif[/url] The best way to view the tiger dave test pattern is to set it as the desktop background (as you have to view at 100% zoom for it to actually work. [ATTACH=full]111054[/ATTACH] ^ view this 1:1 picture on your desktop PC using your LCD monitor (which I assume has 1:1 mapping, and you will be able to see what the test pattern should look like on your TV with and without 1:1 mapping. [url]http://upload.wikimedia.org/wikipedia/commons/1/15/Effects_of_overscan_on_fixed-pixel_displays.png[/url] [/QUOTE]

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