{"id":76,"date":"2008-01-21T14:30:25","date_gmt":"2008-01-21T20:30:25","guid":{"rendered":"http:\/\/www.tkseminars.com\/site\/?p=76"},"modified":"2008-01-21T15:29:46","modified_gmt":"2008-01-21T21:29:46","slug":"controlling-digital-noise-for-free","status":"publish","type":"post","link":"https:\/\/www.tkseminars.com\/site\/2008\/01\/21\/controlling-digital-noise-for-free\/","title":{"rendered":"Controlling &#8220;Digital Noise&#8221; (for Free)"},"content":{"rendered":"<p>We talk alot about digital noise in images, and sometimes there&#8217;s nothing like a good example to really drive it home.  A few weeks ago, a former student emailed me about &#8220;noisy&#8221; images and wanted details on what could be done to control it.<\/p>\n<p>First, a little background on what noise is.  Whenever you increase the ISO on your digital camera, you are increasing its sensitivity to light &#8211; it is the same as shooting with a different film speed in the analog film world.  The benefits of doing this are clear :<\/p>\n<ul>\n<li>allowing hand-holdable shutter speeds in lower light situations (usually about 1\/50th or 1\/60th of a second )<\/li>\n<li>allowing indoor (and outdoor) photography with reduced flash power or no flash at all<\/li>\n<li>allowing broader depth of field with higher shutter speeds, especially in lower light situations<\/li>\n<\/ul>\n<p>The list could go on, but these are a few quick reasons.<\/p>\n<p>Now what does this digital grain look like and how can it be controlled?  I&#8217;ll take a look at the first question.<\/p>\n<p>Here is a photo taken at ISO 1600. Notice the graininess and color  patches on the underside of the body of the sea gull.  There isn&#8217;t anything wrong with the image &#8211; that&#8217;s digital noise!  Notice how the noise seems more prominent in the shadow under the right wing (bird&#8217;s left).  This is a common problem with noise &#8211; it likes to lurk in the shadows!<\/p>\n<p><a href=\"http:\/\/www.tkseminars.com\/site\/wp-content\/uploads\/2008\/01\/20071230_img_3764_400d_edited-noisy.jpg\" title=\"Noisy Image Example @ ISO 1600\"><img decoding=\"async\" src=\"http:\/\/www.tkseminars.com\/site\/wp-content\/uploads\/2008\/01\/20071230_img_3764_400d_edited-noisy.jpg\" alt=\"Noisy Image Example @ ISO 1600\" \/><\/a><\/p>\n<p>Imagenomic&#8217;s Noiseware &#8220;Community Edition&#8221; Standalone 2.6 is a freeware software tool that you can try out and see if it improves your shadows.  <a href=\"http:\/\/www.imagenomic.com\/\" title=\"Imagenomic Home Page\">Imagenomics<\/a> makes several variants of this tool, and you can compare them all here : <a href=\"http:\/\/www.imagenomic.com\/nwsa.aspx\" title=\"Noiseware Comparison and Overview\" target=\"_blank\">http:\/\/www.imagenomic.com\/nwsa.aspx.<\/a><\/p>\n<p>After running the Community Edition of the standalone tool, here is the side-by-side comparison.<\/p>\n<p><a href=\"http:\/\/www.tkseminars.com\/site\/wp-content\/uploads\/2008\/01\/20071230_img_3764_400d_edited-noisy_side-by-side.jpg\" title=\"Noisy Image Example @ ISO 1600 Side-By-Side\"><img decoding=\"async\" src=\"http:\/\/www.tkseminars.com\/site\/wp-content\/uploads\/2008\/01\/20071230_img_3764_400d_edited-noisy_side-by-side.jpg\" alt=\"Noisy Image Example @ ISO 1600 Side-By-Side\" \/><\/a><\/p>\n<p>You can see, the noise has really been improved without loss of details.  Now the noiseless image is amazingly smooth and clear!<\/p>\n<p>Shooting at high ISOs can be a tremendous creative tool for your photography.  Now you can feel more confident about shooting at those higher ISOs without worrying about that annoying digital noise!<\/p>\n<p>There are plenty of tools out there to remove noise and <a href=\"http:\/\/www.imagenomic.com\/\" title=\"Imagenomic Home Page\">Imagenomic&#8217;s Noiseware<\/a> is just one of many good tools to consider in your digital photo editor&#8217;s toolbox!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Noise or digital grain, can be controlled with a variety of tools.  In this article, I&#8217;ll show you the results of one specific freeware tool : Imagenomic&#8217;s Noiseware Community Edition 2.6.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[21],"class_list":["post-76","post","type-post","status-publish","format-standard","hentry","category-tips-and-tricks","tag-noise-plugins-iso"],"_links":{"self":[{"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/posts\/76","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/comments?post=76"}],"version-history":[{"count":0,"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/posts\/76\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/media?parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/categories?post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tkseminars.com\/site\/wp-json\/wp\/v2\/tags?post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}