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{'container': <UnauthorizedBinding: container>, 'context': <ZWikiPage 'Lab4' at 0x7f6a14c48690>, 'default': <object object at 0x7f6a7dd3ba20>, 'here': <ZWikiPage 'Lab4' at 0x7f6a14c48690>, 'loop': {u'sub': <Products.PageTemplates.Expressions.PathIterator object at 0x7f6a0467ff90>}, 'nothing': None, 'options': {'args': (<ZWikiPage 'Lab4' at 0x7f6a14c48690>, <HTTPRequest, URL=https://engineering.purdue.edu/people/mireille.boutin.1/ECE301kiwi/Lab4>), 'body': '<p>Discussions on Lab 4 goes here.\n\n</p>\n<p class="commentheading"><strong>4.3 Gamma Correction</strong> --mehmet.gunal.1, Wed, 13 Feb 2008 17:24:39 -0500 <a class="reference" href="https://engineering.purdue.edu/people/mireille.boutin.1/ECE301kiwi/Lab4?subject=4.3%20Gamma%20Correction&in_reply_to=%3C20080213172439-0500%40https%3A//engineering.purdue.edu%3E#bottom">reply</a></p>\n<p class="commentbody">This lab was pretty straight forward. The last part may be a little tricky.\nFor the first section of 4.3, once the Gamma is found from part 4.2, implement y and Gamma values to the inverse of equation (5) to find the Gamma corrected image.\nFor the second section, use equation (5), implement x and Gamma = 1.5. Finally, reprocess the data using y, and previously calculated Gamma on inverse of equation (5), and you should have the corrected image. Good luck!</p>\n<p class="commentheading"><strong>4.3 Gamma Correction</strong> --satyam.srivastava.1, Fri, 15 Feb 2008 13:40:48 -0500 <a class="reference" href="https://engineering.purdue.edu/people/mireille.boutin.1/ECE301kiwi/Lab4?subject=4.3%20Gamma%20Correction&in_reply_to=%3C20080215134048-0500%40https%3A//engineering.purdue.edu%3E#bottom">reply</a></p>\n<p class="commentbody">I am finding it hard to set the Black Point. Any tips?</p>\n<p class="commentheading"><strong>4.3 Gamma Correction</strong> --mehmet.gunal.1, Fri, 15 Feb 2008 14:41:08 -0500 <a class="reference" href="https://engineering.purdue.edu/people/mireille.boutin.1/ECE301kiwi/Lab4?subject=4.3%20Gamma%20Correction&in_reply_to=%3C20080215144108-0500%40https%3A//engineering.purdue.edu%3E#bottom">reply</a></p>\n<p class="commentbody">I believe minor Black Level setting deviations will not have strong effects on the final results as long as you stay close to the directions.</p>\n<p class="commentheading"><strong>no black level adjustment</strong> --karl.ostmo.1, Sat, 15 Mar 2008 01:08:36 -0400 <a class="reference" href="https://engineering.purdue.edu/people/mireille.boutin.1/ECE301kiwi/Lab4?subject=no%20black%20level%20adjustment&in_reply_to=%3C20080315010836-0400%40https%3A//engineering.purdue.edu%3E#bottom">reply</a></p>\n<p class="commentbody">My monitor is a newer Dell LCD model. It has no black level (contrast) setting - I assume they set it at the factory. The lab was completed without issue, though, so you can probably just ignore that part.</p>\n'}, 'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0x7f6a05df4cb0>, 'request': <HTTPRequest, URL=https://engineering.purdue.edu/people/mireille.boutin.1/ECE301kiwi/Lab4>, 'root': <Application at >, 'template': <ZopePageTemplate at /people/mireille.boutin.1/ECE301kiwi/wikipage.pt used for /people/mireille.boutin.1/ECE301kiwi/Lab4>, 'traverse_subpath': [], 'user': <SpecialUser 'Anonymous User'>}
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