Hugin produces unuseable .hdr files

[jepz11]

I am trying to work with HDR images produced by Hugin.
Hugin seems to combine the images fine, but no matter if I use TIF or EXR output, no program can open the hdr images.

For the .exr files it is obvious they are not valid images as the file size is way too small, like 40 KB for a hires image.
The tiff file sizes seem OK but the .TIF files can't be used either.
Artizen HDR or HDR Workshop for example can't open them.

Are others having the same problem?

[Harry van der Wolf]

Which Hugin version and on which operating system?

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[jepz11]

On Thursday, June 25, 2015 at 7:17:54 PM UTC+2, Harry van der Wolf wrote:

Which Hugin version and on which operating system?

Hugin 2013.0.0.0d404a7088e6 on 64bits Windows 7.

[jepz11]

On Thursday, June 25, 2015 at 9:33:33 PM UTC+2, jepz11 wrote:

On Thursday, June 25, 2015 at 7:17:54 PM UTC+2, Harry van der Wolf wrote:

Which Hugin version and on which operating system?

Hugin 2013.0.0.0d404a7088e6 on 64bits Windows 7.

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Update: just installed the new 64bits Hugin 2014.0.0.5da69bc383dd.

The issue is gone for .exr, it works fine. However, not for the (uncompressed) .tif, it still can't be read.

[jepz11]

On Thursday, June 25, 2015 at 10:11:10 PM UTC+2, jepz11 wrote:

On Thursday, June 25, 2015 at 9:33:33 PM UTC+2, jepz11 wrote:

[HDR-TIFF output of Hugin is 'non-image data']

Again: are others having this issue too?

[T. Modes]

Am Freitag, 26. Juni 2015 12:17:39 UTC+2 schrieb jepz11:

[HDR-TIFF output of Hugin is 'non-image data']

Again: are others having this issue too?

No. Hugin produces valid TIFF files, also when using HDR output.

tiffinfo reports:
tiffinfo testhdr_hdr.tif
TIFF Directory at offset 0x4fb58 (326488)
  Subfile Type: (0 = 0x0)
  Image Width: 237 Image Length: 128
  Resolution: 300, 300 pixels/inch
  Position: 0.116667, 0.0966667
  Bits/Sample: 32
  Sample Format: IEEE floating point
  Compression Scheme: LZW
  Photometric Interpretation: RGB color
  Extra Samples: 1<unassoc-alpha>
  Orientation: row 0 top, col 0 lhs
  Samples/Pixel: 4
  Rows/Strip: 1106
  Planar Configuration: single image plane

Xnview, Luminance HDR and Picturenaut open the TIFF files without problem.
So it seems your HDR programs does not support floating point tiffs (what also the error message indicates). This can't be fixed by Hugin.

[jepz11]

On Friday, June 26, 2015 at 4:48:46 PM UTC+2, T. Modes wrote:

Am Freitag, 26. Juni 2015 12:17:39 UTC+2 schrieb jepz11:

[HDR-TIFF output of Hugin is 'non-image data']

Again: are others having this issue too?

Xnview, Luminance HDR and Picturenaut open the TIFF files without problem.

I found Picturenaut, and it opens the .tif fine.

Thank you for your advise.

Picturenaut is a great little program too! Easy to understand and use. So thanks for that tip, too.