So i am just learning about the hdr technique.I find this to be a very fun little trick.But i was wondering if anyone has or know how to hdr a single image in photoshop. I tried to open two new files and copy the single image into them. Then messed with the exposure rates and merged them but was stumped when a message came up on photoshop 3.
Permalink Reply by Gary on October 16, 2008 at 12:34pm
Psuedo HDR... What you need to do is take the Original Raw file of .Jpg and adjust the exposure over "1" and save it with a different file name... then open the original again and adjust the exposure under "1" and save it with a different file name. Now you have 3 exposures of the same shot to work with..
Permalink Reply by Paul on October 16, 2008 at 3:33pm
Try this as well with a jpeg. Duplicate the background twice.(just to preserve the original image) With the top layer active change image, mode to lab color. Dont flatten. Go to Channels and select lightness. Click filters, other, high pass. Set to 1.2 - 1.5 Ok. Click on lab and then layers. Still with the top layer selected set the blending mode to overlay. Not as drastic but richer colours. to save change back to rgb. Dont flatten.
best thing is too use dynamic photo hdr it allows you to use a single image or if you cant get that just make a copy of your image dont bother changing the ev as it makes no difference unless actually taken at different ev settings but to be honest photoshop is not that good at hdr
1) Just because producing a true HDR requires combining multiple exposures doesn't mean you have to take more than one picture. You can take a raw image at a normal exposure, adjust the exposure in photoshop to make it darker then save it. Do the same for the brighter exposure and save it. Now you have 3 pictures with 3 different exposures. Go into photomatix (or which ever program you use for producing your HDR image) and combine them like you would normally. It may ask you to manually input the exposure levels in which case you would put -2 0 2 and presto! You have yourself and HDR from a single shot.
OR
2) You can just do a single file conversion. I know those of you that are using photomatix have the option on creating an HDR image from by doing a single file conversion with 1 RAW image. Granted it won't look as good as it would with multiple exposures, and it won't be a "true" HDR, but it will still have a definitive HDR look to it.