3 REPLIES
Master navigator

Re: Reverse Vignetting Problem

Here's vignetting corrections applied to our sensor vs. another users sensor that is functioning properly... 

 

https://drive.google.com/open?id=0B7DYmh6qMkMMMmc1dzU0WEh6dVE

 

The lighter image is our camera, the darker image is another users camera. Correction is done using EXIF data. If you notice, the edges in our image get brighter than they already are (They should be darker). In the other users image, the edges are darker in the original image and get perfectly even with the rest of the image after the corrections, as it should be doing.

Master navigator

Re: Reverse Vignetting Problem

When I email Parrot, they advise me  to use this customer support forum, however, There is no reponses. Why is the customer service and support with this company so terrible? Who can I speak with about a potential hardware issue we have? These are not low cost disposable cameras, these are expensive multi-spectral sensors and I would expect the company to support their products and respond to issues and requests within reasonable time frames.

Master navigator

Re: Reverse Vignetting Problem

Parrot Support,

 

Any help on this? Any suggestions?

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Master navigator

Reverse Vignetting Problem

Hello,

 

I am experiencing a very strange effect with my Parrot Sequoia. It seems almost like it is a reverse vignetting effect on all bands. Only my camera is displaying this issue and when I have asked other users to share photos from their sensor, it does not have the same issue. Any help would be great in diagnosing this issue.

 

Here's some example data of a white panel to see the effect.

 

https://drive.google.com/open?id=0B7DYmh6qMkMMMTJXYjVrLVFIV2s