{"id":741,"date":"2006-10-17T01:34:50","date_gmt":"2006-10-17T01:34:50","guid":{"rendered":"http:\/\/glaringnotebook.com\/?p=741"},"modified":"2006-10-17T01:34:50","modified_gmt":"2006-10-17T01:34:50","slug":"how-to-make-compressed-hdr-images-in-adobe-photoshop-7-0cs","status":"publish","type":"post","link":"https:\/\/glaringnotebook.com\/?p=741","title":{"rendered":"How to make compressed HDR images in Adobe Photoshop 7.0\/CS"},"content":{"rendered":"

Ever taken night scenes, only to be frustrated how the pictures turned out? If the buildings were dark, you’d increase the EV setting to make it brighter… but the lights would become too bright. If you decreased the EV setting to show the beautiful lamps, the buildings would disappear into blackness!<\/p>\n

Fortunately, there is a way around it, by shooting the same scene, with different EV settings, and combining the best of those pictures. This trick is commonly known as HDR (though it isn’t technically correct.)<\/p>\n

Photoshop CS2 already has a HDR function built in, but CS2 seems to be quite the memory hog, so I kept to Photoshop CS. Still, it is doable with a little effort.<\/p>\n


\nFirst off, get a tripod.<\/p>\n


\nPick a nice dark place with lots of highlights and shadows.<\/p>\n


\nPut camera on tripod, on self-timer, on a long exposure. Remember not to move the camera or risk screwing up your shot like so!<\/p>\n

If a scene needs 2 seconds to expose properly, shoot one at 4 times its length (8 seconds) and one shot 1\/4th of its length (0.5 seconds). If your camera does not have an adjustable shutter speed, just shoot one shot normally, one shot with the EV at +2, and one shot with the EV at -2.<\/p>\n


\nLoad all the pictures in Photoshop.<\/p>\n


\nClick on the second brightest image. Ctrl-A (Select All) and then Ctrl-C (Copy) it. Click on the brightest image. Press Ctrl-V (Paste). In the Layers bar, choose Difference, so you can align the image over it. Once done, change the blending mode back to Normal. Ctrl-A (Select All) and then Ctrl-Shift-C (Copy Merged) on the top-most layer.<\/p>\n


\nClick on Add vector mask<\/b> to add a vector mask.<\/p>\n


\nHold down the Alt<\/b> key while clicking inside the white box (the vector mask). Press Ctrl-V (Paste).<\/p>\n


\nDo the same for the next darker image until all of them are on one image.<\/p>\n

If you’re more experienced with Photoshop, adjust the Levels of the vector mask (right after pasting the vector mask). This allows greater control over how much of the lights seep through.<\/p>\n

You can also copy any image with lots of shadows and highlights, and do the same method onto itself, to decrease the difference between highlights and shadows.<\/p>\n


\nFinished product, with a bit of tweaking. Remember to crop off the edges where the pictures do not align!<\/p>\n


\nAnother example, by the pool.<\/p>\n


\nMasjid Jamek (gotta work on the saturation a bit.)<\/p>\n

\"\"<\/a>
\nClick on the image for a bigger version.<\/p>\n


\nOf course, you could camp around for the right time when the lights turn on, but the building is still lit by sky light.<\/p>\n


\nAsia’s largest high court.<\/p>\n


\nGiant leaves.<\/p>\n


\nA pathway to the balcony. All pictures (except Masjid Jamek) shot at Hartamas Regency.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ever taken night scenes, only to be frustrated how the pictures turned out? If the buildings were dark, you’d increase the EV setting to make it brighter… but the lights would become too bright. If you decreased the EV setting to show the beautiful lamps, the buildings would disappear into blackness! Fortunately, there is a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,19],"tags":[],"class_list":["post-741","post","type-post","status-publish","format-standard","hentry","category-geek","category-pictures"],"_links":{"self":[{"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=\/wp\/v2\/posts\/741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=741"}],"version-history":[{"count":0,"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=\/wp\/v2\/posts\/741\/revisions"}],"wp:attachment":[{"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/glaringnotebook.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}