image and thumbnail display problem

[photodave]

In viewing a folder of tif images, some images (and their thumbnails) are displayed with what appears to be histogram equalization.
When I display these images in mac Preview app or using Photoshop, they display normally.
Also if I export the image using Preview app without making changes the subsequent image is displayed correctly.
Do you know the reason for this?

[xnview]

could you send me a sample?

[photodave]

how to send you image?
can't seem to attach one here...

[cday]

how to send you image?

Files can be sent as follows:

1. By adding to a post as an attachment, 2MiB current forum limit, in a ZIP archive if the file format isn't permitted for attachments.

2. By uploading to a file hosting service and posting a link.

3. By sending as an email attachment to the email address below.

1a.png (1.57 KiB) Viewed 964 times

[photodave]

Here are the image examples...one displays correctly (roi.0204746100.tif) the other not (roi.0204753800.tif).
They both display fine in Preview and Photoshop, but not in xnviewmp
macbook pro
osx 10.8.5
xnview 0.79

[Mixer]

Nice acidous colors. Screens made in XnView Classic 2.35. In other programs capable of opening .tif lower picture looks green-on-black like the one above. i know you here are discussing MP flaws, but MP users often post in Classic forum, so I thought, why not?

[XnTriq]

AWare Systems: AsTiffTagViewer

Code: Select all

Tag Code        | Data Type | Count | Value              
----------------+-----------+-------+--------------------
ImageWidth      |   Short   |   1   | 918                
ImageLength     |   Short   |   1   | 294                
BitsPerSample   |   Short   |   3   | 16, 16, 16         
Compression     |   Short   |   1   | Uncompressed       
Photometric     |   Short   |   1   | RGB                
StripOffsets    |   Long    |   1   | 8                  
Orientation     |   Short   |   1   | TopLeft            
SamplesPerPixel |   Short   |   1   | 3                  
RowsPerStrip    |   Short   |   1   | 294                
StripByteCounts |   Long    |   1   | 1619352            
MinSampleValue  |   Short   |   3   | 0, 0, 0            
MaxSampleValue  |   Short   |   3   | 65535, 65535, 65535
PlanarConfig    |   Short   |   1   | Contig             
SMinSampleValue |   Short   |   3   | 0, 0, 0            
SMaxSampleValue |   Short   |   3   | 0, 0, 0            

Code: Select all

Tag Code        | Data Type | Count | Value              
----------------+-----------+-------+--------------------
ImageWidth      |   Short   |   1   | 1020               
ImageLength     |   Short   |   1   | 300                
BitsPerSample   |   Short   |   3   | 16, 16, 16         
Compression     |   Short   |   1   | Uncompressed       
Photometric     |   Short   |   1   | RGB                
StripOffsets    |   Long    |   1   | 8                  
Orientation     |   Short   |   1   | TopLeft            
SamplesPerPixel |   Short   |   1   | 3                  
RowsPerStrip    |   Short   |   1   | 300                
StripByteCounts |   Long    |   1   | 1836000            
MinSampleValue  |   Short   |   3   | 0, 0, 0            
MaxSampleValue  |   Short   |   3   | 65535, 65535, 65535
PlanarConfig    |   Short   |   1   | Contig             
SMinSampleValue |   Short   |   3   | 0, 0, 0            
SMaxSampleValue |   Short   |   3   | 0, 0, 0            

GnuWin: Tiff for Windows
tiffinfo.exe needs jpeg62.dll (Jpeg for Windows » Binaries) and zlib1.dll (Zlib for Windows » Binaries).

Code: Select all

TIFF Directory at offset 0x18b5a0 (1619360)
  Image Width: 918 Image Length: 294
  Bits/Sample: 16
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Orientation: row 0 top, col 0 lhs
  Samples/Pixel: 3
  Rows/Strip: 294
  Min Sample Value: 0
  Max Sample Value: 65535
  SMin Sample Value: 0
  SMax Sample Value: 0
  Planar Configuration: single image plane

Code: Select all

TIFF Directory at offset 0x1c03e8 (1836008)
  Image Width: 1020 Image Length: 300
  Bits/Sample: 16
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Orientation: row 0 top, col 0 lhs
  Samples/Pixel: 3
  Rows/Strip: 300
  Min Sample Value: 0
  Max Sample Value: 65535
  SMin Sample Value: 0
  SMax Sample Value: 0
  Planar Configuration: single image plane

[xnview]

ok, i found the problem, min/max sample value not correctly readed....

[photodave]

You mean XnviewMP does not read the min max values correctly?
If so, will it be fixed in the next version?
When is next version?

Thanks.

[Mixer]

Windows users of XnView Classic already received repair in v2.36.

[photodave]

I'm using macbook pro w osx 10.8.5
xnviewmp version 0.79 x64 (Mar 22 2016)

looking forward to this fix.