Mio Jane Stanley | 6 Aug 21:12 2015
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raw2hdr Camera Response Function

All,

Does anyone know if there is a -r option (to write/use a camera response function) for raw2hdr like there is for hdrgen?  Using -r with raw2hdr now gives me an error message that states that -r is not a supported option. 

Thank you,
Mio Stanley
Graduate Student, University of Colorado Boulder
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Gregory J. Ward | 2 Jul 20:21 2015
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Re: raw2hdr Image Issues

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 <Mio.Stanley-4gSe3/lUWWk3r0Ub5QXD9Q@public.gmane.org>

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 <gregoryjward-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 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:


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:


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" <gregoryjward-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

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 <Mio.Stanley-4gSe3/lUWWk3r0Ub5QXD9Q@public.gmane.org>

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 <gregoryjward-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 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 <Mio.Stanley-4gSe3/lUWWk3r0Ub5QXD9Q@public.gmane.org>

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
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[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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Gregory J. Ward | 1 Jul 22:28 2015
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Re: raw2hdr Image Issues

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:


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.


Attachment (raw2hdr.pl): application/applefile, 665 bytes
Attachment (raw2hdr.pl): text/x-perl-script, 2887 bytes


The latest version of dcraw is always available from Dave Coffin's website:


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" <gregoryjward-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

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 <Mio.Stanley-4gSe3/lUWWk3r0Ub5QXD9Q@public.gmane.org>

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 <gregoryjward-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 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 <Mio.Stanley-4gSe3/lUWWk3r0Ub5QXD9Q@public.gmane.org>

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
HDRI-mVArnbgP/ra1OXqM+dc5E0B+6BGkLq7r@public.gmane.org
http://www.radiance-online.org/mailman/listinfo/hdri



[The attachment Archive.zip has been manually removed]

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Mio Jane Stanley | 30 Jun 22:29 2015
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raw2hdr Image Issues


​​
​​
​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
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Oguz Akyuz | 15 May 07:27 2015
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participants needed for an HDR experiment

Dear Friends and Colleagues,

We are conducting a research on the quality of high dynamic range (HDR) deghosting algorithms. We would greatly appreciate if you can take our experiment at the following link:


Thank you all for your contribution,
Ahmet Oğuz Akyüz

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Jacobus Pieter Overduin | 28 Apr 19:31 2015
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help exposure & VIEW

Dear Mr/Mrs,

We are working on a research including the DGP. We have made several fotos and combined this in an .hdr The problem we are facing is the low exposure level influencing the result. The values are low due to this fact. Trying to change something in the pcomb gives the failure "can't open pcomb" The problem is in the .hdr information, opening the file in photoshop gives the image we want to use. But Evalglare doenst uses the information of the .hdr, neccesito to type the information in the cmd. 

With the normal comand in cmd evalglare filename.hdr gives a failure "no valid view specified". Neccesary to type the command C:/HDRI>evalglare -vth -vh 140 -vv 80 filename.hdr to get an result. 

Maybe its the problem we cannot acces the pcomb. 

Thanks in advance. 

Jasper Overduin

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C. Walter Beamer IV | 3 Apr 22:35 2015
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FW: raw2hdr issue

All,

We are trying to use raw2hdr on some raw images we have, but keep getting the below error.  The ExifTool function is in the same folder, however it is exiftool and it is a unix executable file.  Does anyone have a suggestion how to resolve this issue?

Thanks for your help,

Walter

 

Loading NIKON D5200 image from DSC_0107.NEF ...

Scaling with darkness 0, saturation 16383, and

multipliers 1.000000 1.000000 1.000000 1.000000

AHD interpolation...

Building histograms...

Writing data to standard output ...

Can't locate Image/ExifTool.pm in <at> INC (you may need to install the Image::ExifTool module) ( <at> INC contains: /usr/local/raw2hdr/lib /Library/Perl/5.18/darwin-thread-multi-2level /Library/Perl/5.18 /Network/Library/Perl/5.18/darwin-thread-multi-2level /Network/Library/Perl/5.18 /Library/Perl/Updates/5.18.2 /System/Library/Perl/5.18/darwin-thread-multi-2level /System/Library/Perl/5.18 /System/Library/Perl/Extras/5.18/darwin-thread-multi-2level /System/Library/Perl/Extras/5.18 .) at /usr/local/raw2hdr/exiftool line 30.

BEGIN failed--compilation aborted at /usr/local/raw2hdr/exiftool line 30.

Executing: hdrgen -m 400 -e -a -r /tmp/raw2hdr.cjLDXN/sqr.rsp -o output11.hdr -c sRGB /tmp/raw2hdr.cjLDXN/DSC_0092.tif /tmp/raw2hdr.cjLDXN/DSC_0093.tif /tmp/raw2hdr.cjLDXN/DSC_0094.tif /tmp/raw2hdr.cjLDXN/DSC_0095.tif /tmp/raw2hdr.cjLDXN/DSC_0096.tif /tmp/raw2hdr.cjLDXN/DSC_0097.tif /tmp/raw2hdr.cjLDXN/DSC_0098.tif /tmp/raw2hdr.cjLDXN/DSC_0099.tif /tmp/raw2hdr.cjLDXN/DSC_0100.tif /tmp/raw2hdr.cjLDXN/DSC_0101.tif /tmp/raw2hdr.cjLDXN/DSC_0102.tif /tmp/raw2hdr.cjLDXN/DSC_0103.tif /tmp/raw2hdr.cjLDXN/DSC_0104.tif /tmp/raw2hdr.cjLDXN/DSC_0105.tif /tmp/raw2hdr.cjLDXN/DSC_0106.tif /tmp/raw2hdr.cjLDXN/DSC_0107.tif

     Cleaning Bad Pixels ******************************************************

engr2-6-171-dhcp:100D5200 WalterBeamer$ 

 

--

C. Walter Beamer IV, Ph.D.

Instructor – Lighting Program

Civil, Environmental and Architectural Engineering

Rocky Mountain Lighting Academy – http://rmla.colorado.edu

 

University of Colorado at Boulder

Campus Box 428

Boulder, CO 80309-0428

tel: +1 (303) 492-7603 

fax: +1 (303) 492-7317

 

 

 

 

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C. Walter Beamer IV | 15 Mar 04:54 2015
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Re: raw2hdr Missing -o output file specification

Hi Greg,
Thank you for taking a look at my issue. You’re right, the issue was resolved by retyping the command. As you mentioned there must have been a hidden character in the string. I was copy and pasting it from a text document due to the length, but it must have included something strange.
Thanks,
Walter
--

C. Walter Beamer IV, Ph.D.


Hi Walter,

It doesn't really make sense that you would get this error.  Are you sure there aren't some "hidden characters" or something else going on with your command line?  I can't reproduce this on my end.

-Greg

From: "C. Walter Beamer IV" <Walter.Beamer <at> Colorado.EDU>
Subject: [HDRI] raw2hdr Missing -o output file specification
Date: March 13, 2015 6:46:47 PM EDT
To: "hdri <at> radiance-online.org" <hdri <at> radiance-online.org>

All,
I am trying to use raw2hdr to compile an HDR image. In the process, I get the following error

raw2hdr -o output.hdr DSC_0092.NEF DSC_0093.NEF
Missing -o output file specification

I am unsure why this error occurs, my hdrgen works with the same format (when *.NEF are replaced by*.JPG images).


Sincerely,
Walter
--
C. Walter Beamer IV, Ph.D.
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C. Walter Beamer IV | 13 Mar 23:46 2015
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raw2hdr Missing -o output file specification

All,
I am trying to use raw2hdr to compile an HDR image. In the process, I get the following error

raw2hdr -o output.hdr DSC_0092.NEF DSC_0093.NEF
Missing -o output file specification

I am unsure why this error occurs, my hdrgen works with the same format (when *.NEF are replaced by*.JPG images).


Sincerely,
Walter
--

C. Walter Beamer IV, Ph.D.



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Oguz Akyuz | 11 Sep 14:26 2014
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volunteers needed for an HDR deghosting experiment

Dear HDRI List Members,

As part of a research project that we are engaged in, we are conducting a user study and we desperately need participants. The task involves comparing several images which are outputs of HDR deghosting algorithms.

This is a study which everyone can do in front of his or her computer and lasts for less than 30 minutes (most people finish it in 15-20 mins). The link to the user study is below:


All instructions are explained in that page. My student and I would greatly appreciate if you can be a participant in this user study. We would be further delighted if you can forward this link to anybody else who might be interested.

Thanks very much and all the best,
Ahmet Oguz Akyuz
METU - Department of Computer Engineering
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Marie-Claude Dubois | 19 Aug 16:37 2014
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Radiance ximage viewer

Hello,

Does anyone know where I can find the Radiance ximage viewer?

I would like to use the simple "t" command to pick a luminance value in a HDR image.

I used to have it but cannot locate it anymore and do not feel like a full program reinstallation....

Or can you suggest another way (apart from sending my image to pvalue)

Thx

 

<><><><><><><><><><><><>

Marie-Claude Dubois, M. Arch. PhD

Associate professor / Lektor

Energy and Building Design

+46 46 222 7629

www.ebd.lth.se

www.ides-edu.eu

<><><><><><><><><><><><>

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