Hi Mio, I'm glad the new version of dcraw solved your problems. In future posts to the HDRI list, please link images to a URL as you did before or at most attach low-res JPEGs. The PNG files ended up being 10+ MBytes.
Cheers! -Greg > From: Mio Jane Stanley <[email protected]> > Subject: Re: [HDRI] raw2hdr Image Issues > Date: July 2, 2015 10:38:26 AM PDT > > Greg, > > Thank you, the new dcraw seemed to get rid of the green tint. It is still a > different color, it's a warmer white than the hydrogen image. With the -w > added, the raw2hdr image becomes a cooler white more similar to that of > hdrgen. > > I've attached png screenshots of the images for reference, just so I don't > have to send the large HDR files through email. > > Thanks, > Mio > > On Wed, Jul 1, 2015 at 2:28 PM, Gregory J. Ward <[email protected]> > wrote: > Hi Mio, > > I am not seeing the same problems as you are. Here is what I get using your > exact command with my version of raw2hdr: > > http://www.anyhere.com/gward/pickup/outputHalfOnF9RAW.hdr > > Have you updated your version of dcraw? Sometimes, there are improvements > and bug fixes (and new camera support) that require an update. I am > currently using dcraw v9.26, and the attached raw2hdr.pl script. > > > > > The latest version of dcraw is always available from Dave Coffin's website: > > https://www.cybercom.net/~dcoffin/dcraw/ > > Just download dcraw.c and compile with: > > cc -DNODEPS -O2 -o dcraw dcraw.c -lm > > Then (of course) copy the new version of dcraw to the appropriate executable > directory. > > The green cast could be a white balance issue. Sometimes, using raw2hdr -w > helps with this. I wasn't seeing it (at least not severely) in my run, > though. > > Best, > -Greg > > >> From: "Gregory J. Ward" <[email protected]> >> Subject: Re: [HDRI] raw2hdr Image Issues >> Date: July 1, 2015 9:39:17 AM PDT >> >> I mean for the NEF files. If you could upload as a ZIP, that would be >> great. I just found the JPEG archive attachment. >> >> Cheers, >> -G >> >>> From: Mio Jane Stanley <[email protected]> >>> Subject: Re: [HDRI] raw2hdr Image Issues >>> Date: July 1, 2015 7:57:29 AM PDT >>> >>> Greg, >>> >>> Below is the input I used to create the HDR images, the images are attached >>> in a zip file. >>> >>> raw2hdr -o outputHalfOnF9RAW.hdr DSC_0102.NEF DSC_0103.NEF DSC_0104.NEF >>> DSC_0105.NEF DSC_0106.NEF DSC_0107.NEF DSC_0108.NEF DSC_0109.NEF >>> DSC_0110.NEF DSC_0111.NEF DSC_0112.NEF DSC_0113.NEF DSC_0114.NEF >>> DSC_0115.NEF DSC_0116.NEF DSC_0117.NEF DSC_0118.NEF DSC_0119.NEF >>> DSC_0120.NEF >>> >>> >>> hdrgen -o outputHalfOnF9JPEG.hdr -a DSC_0102.JPG DSC_0103.JPG DSC_0104.JPG >>> DSC_0105.JPG DSC_0106.JPG DSC_0107.JPG DSC_0108.JPG DSC_0109.JPG >>> DSC_0110.JPG DSC_0111.JPG DSC_0112.JPG DSC_0113.JPG DSC_0114.JPG >>> DSC_0115.JPG DSC_0116.JPG DSC_0117.JPG DSC_0118.JPG DSC_0119.JPG >>> DSC_0120.JPG >>> >>> >>> On Tue, Jun 30, 2015 at 6:00 PM, Gregory J. Ward <[email protected]> >>> wrote: >>> Hi Mio, >>> >>> Can you send me the original exposures (JPEG & RAW) as well as the options >>> you are using for hdrgen and raw2hdr? >>> >>> Thanks. >>> -Greg >>> >>> >>>> From: Mio Jane Stanley <[email protected]> >>>> Subject: [HDRI] raw2hdr Image Issues >>>> Date: June 30, 2015 1:29:17 PM PDT >>>> >>>> >>>> >>>> All, >>>> >>>> I have recently been using hdrgen and raw2hdr in an effort to make >>>> comparisons between the quality of data between JPEG and RAW image files. >>>> However, I have come across a couple of issues with raw2hdr. The main one >>>> being that we are getting a consistent green tint to the RAW HDR images >>>> created with raw2hdr, which is not shown in its counterpart HDR image >>>> created with hdrgen. I have attached the images for reference. The two HDR >>>> images are composed of the same sets of LDR images taken at the same time >>>> except, of course, with one created with the JPEG files and one with the >>>> RAW files. >>>> >>>> A second issue, which has only happened once so far, is that I am getting >>>> a diagonal white bar in the final composed HDR image. I was able to create >>>> a corrected image by toggling on the -x setting, to remove over- and >>>> under-exposed images, but I was still curious what exactly is causing this >>>> type of error so I can avoid it moving forward. Again, image has been >>>> attached for reference. >>>> >>>> If the links to the images are not working, please let me know and I can >>>> send them directly. >>>> >>>> Any insight is much appreciated! >>>> Mio Stanley >>>> Graduate Student, University of Colorado Boulder >>>> _______________________________________________ >>>> HDRI mailing list >>>> [email protected] >>>> http://www.radiance-online.org/mailman/listinfo/hdri >>> >>> >>> >>> [The attachment Archive.zip has been manually removed] >>> > > > > > [The attachment hdrgen.png has been manually removed] > > > > [The attachment raw2hdr_whitebalanced.png has been manually removed] > > > > [The attachment raw2hdrNew.png has been manually removed] >
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