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 Removing Vignette

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T O P I C    R E V I E W
Joerg Hansen Posted - Mar 27 2015 : 11:59:07
Hi all ,Hi ImageEn Team,

I have a picture from a camera that have a vignette. I have also a reference picture from the same camera but the picture is complete white and with the vignette.

I want correct the original picture.

Is there a simple way in ImageEn to do that?
Can anyone describe me the steps?

Thanks a lot
Joerg
6   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Mar 31 2015 : 11:32:06
Nice work, Roy!

Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
Joerg Hansen Posted - Mar 30 2015 : 06:24:28
Hello Roy,

that's looks perfect! Thanks a lot!


Regards
Jörg
rmklever Posted - Mar 30 2015 : 05:40:19
Hi Joerg,

Take a look at this demo:

http://imageen.com/ieforum/topic.asp?whichpage=3&TOPIC_ID=1446#7584

Hope it helps.


Roy M Klever
Klever on Delphi - www.rmklever.com
Joerg Hansen Posted - Mar 30 2015 : 02:13:13

Hello Roy, Hello Nigel,

thanks a lot for your answer. In the attachment you will find the reference picture (Ref1.jpg) and the original picture (Pic1.jpg).

What have I to do, to correct the vignette?

Thanks for your answers
and best wishes from Germany
Joerg
rmklever Posted - Mar 28 2015 : 06:18:58
Hi Joerg,

Without seeing an example it is not easy to come up with an answer, but I am guessing that this might work:

* Start by loading the images into two TIEBitmap
* Invert the white reference image
* Add it to the other image you want to correct.

I believe you could use TIEBitmap to do that, or you could use scanlines I guess.

Hope this helps


Roy M Klever
Klever on Delphi - www.rmklever.com
xequte Posted - Mar 27 2015 : 12:55:43
Hi Joerg

Can you attach an example image.


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com