[LRflex] Re: TECH: Questions on quality and taste.
- From: Colin Howarth <colin@xxxxxxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Thu, 25 Jan 2007 22:47:34 +0100
Hi Philippe,
just saw the shot (very nice). It's an interesting example of
perspective. Normally you have one vanishing point on which all
horizontal lines converge. A square then gets distorted into a sort
of trapezium. Which can be corrected easily in photoshop.
You have two vanishing points! What you would need to do is two
corrections - one for each half.
I haven't done this myself yet - I may try it later. If you want to
try it type "perspective" into the help field.
Hope this helps.
colin
On 25.01.2007, at 18:20, Philippe Amard wrote:
> Thanks David,
> the shot was taken with the zoom at the shorter end, hence creating
> curved distortion - and the perspective correction feature in PS is
> not
> appropriate enough as it apparently moves straight lines.
> "Torsion" (DK
> if the English version uses this term, twist maybe?), helped a little
> better but not much. The outer walls are parallel to the frame, but
> there is still, and you're right in that respect, much to be
> desired in
> the final picture. I wish there was some (cheap or better, free)
> programme that would allow the curves to be reversed.
>
> Thanks again for all.
> Phileicangemix.
>
> David Young wrote:
>
>> Philippe showed:
>>
>>
>>
>>> 1) I recently posted a snap of Temple Bar on the LUG Gallery and
>>> David
>>> suggested the verticals were not what they should be - and I
>>> assume he
>>> was right.
>>> I have used PS to try and improve on it a bit.
>>> I'd like your comments on the results. The pictures can be found
>>> here.
>>> <http://gallery.leica-users.org/v/Phileica/IRELAND-2oo7/?g2_page=2>
>>>
>>>
>>
>> It looks much better, Philippe. Almost too much better. To my
>> (weird) eyes, it looks as if the building has been over corrected,
>> and is now falling outwards, at the top. Yet, if you look carefully,
>> the sign on the right and the windows on the left appear to be
>> perfect. Thus, the result I see is an optical "delusion".
>>
>> I cannot help with the staircase... sorry!
>>
>> Cheers!
>> ---
>>
>> David Young,
>> Logan Lake, CANADA
>>
>> Wildlife Photographs: http://www.telyt.com/
>> Personal Web-pages: http://www3.telus.net/~telyt
>>
>>
>>
>>
>> ------
>> Unsubscribe or change to/from Digest Mode at:
>> http://www3.telus.net/~telyt/lrflex.htm
>> Archives are at:
>> //www.freelists.org/archives/leicareflex/
>>
>>
>>
>
>
> ------
> Unsubscribe or change to/from Digest Mode at:
> http://www3.telus.net/~telyt/lrflex.htm
> Archives are at:
> //www.freelists.org/archives/leicareflex/
------
Unsubscribe or change to/from Digest Mode at:
http://www3.telus.net/~telyt/lrflex.htm
Archives are at:
//www.freelists.org/archives/leicareflex/
Other related posts:
