EXIF data partially corrupted

resolve technical issues related to use of Neat Image
Post Reply
fsmur
Posts: 2
Joined: Mon Apr 19, 2010 5:18 am

EXIF data partially corrupted

Post by fsmur »

Hi all, the problem I've encountered is the following.

The EXIF data in the output image is changed, but only some of them. The best is to look at an example.

Before Neat Image, original data:
<exif:ExposureTime>1/400</exif:ExposureTime>
<exif:FNumber>56/10</exif:FNumber>
<exif:ShutterSpeedValue>565248/65536</exif:ShutterSpeedValue>

After Neat Image:
<exif:ExposureTime>111848/44739201</exif:ExposureTime>
<exif:FNumber>11744051/2097152</exif:FNumber>
<exif:ShutterSpeedValue>69/8</exif:ShutterSpeedValue>

Numerical changes:
0.0025 -> 0.0024999...
5.6 -> 5.5999...
8.625 -> 8.625 (no change, but different fraction)

This is a minor problem but the fact that Neat Image changes the data is strange and unneccessary. Has anyone else encountered this? Devs, please investigate it! Thanks!

As input image I tried: jpeg from Canon XSI, jpeg from DPP, tiff from DPP.

As output image I tried: jpeg, tiff.

System: Windows 7, Neat Image 6.0 Standalone
NITeam
Posts: 3173
Joined: Sat Feb 01, 2003 4:43 pm
Contact:

Post by NITeam »

Thank you for letting us know, we will investigate. I guess those minor differences are caused by differences in EXIF reading/writing codes used in NI and reader software. It is legal for a writer to change the fraction values. It is a bit strange that there is a small change though.

Thank you,
Vlad
fsmur
Posts: 2
Joined: Mon Apr 19, 2010 5:18 am

Post by fsmur »

Hey Vlad,
Thanks for the reply. I hope to see this fixed in the next version.

Keep up the good work!
Post Reply