Wikipedia:Valued picture candidates/Chicago City Hall Green Roof

 
Original - Chicago City Hall green roof from the Richard J. Daley Center
 
Edit sheared in GIMP and cropped in Paint by TonyTheTiger (talk · contribs)
 
Edit 3 Rotated and Cropped less showing the tops of the other building's roof's per Elekhh suggestion, no distortion.
Reason
This is a high EV image. In fact, I have been contacted for permission to include a derivative of it in a publication.
Articles this image appears in
Chicago City Hall
Green roof
Architecture
Urban heat island
Creator
TonyTheTiger

You could not have just rotated the image. It is physically impossible unless you cloned some grey. This really looks like you just cropped and rescaled my final version.--TonyTheTiger (T/C/BIO/WP:CHICAGO/WP:FOUR) 08:06, 26 July 2010 (UTC)[reply]

Wait you clipped a little off the left. I am going to look more closely at this in the morning. I am trying to figure out what you did. I apologize. I might not be thinking clearly at this late hour.--TonyTheTiger (T/C/BIO/WP:CHICAGO/WP:FOUR) 08:15, 26 July 2010 (UTC)[reply]
The specific steps, in Photoshop, i drew a line with the ruler along the edge of the green roof building, I then did arbitrary rotation, which auto fills in the degree based on the rulers angle, this quickly and easily rotated it right, I then cropped it so there was no white on any corner... Theres a gazillion guides that tell you how on google. — raekyT 12:20, 26 July 2010 (UTC)[reply]
Since your algorithm seems to require more edge chopping, I am trying to see the distortion in my version that yours eliminated. Please help me.--TonyTheTiger (T/C/BIO/WP:CHICAGO/WP:FOUR) 14:02, 26 July 2010 (UTC)[reply]
My image overlaid over yours, with pink lines drawn over key prospective lines, the pink circle is where i used (setting mine to half transparent) to align the two images by (the weird architectural box thing on the top left of the building, stairwell probably).
Hiding the layer that was my image reveals that the lines don't match up right, there is distortion in your image throwing off the prospective.
Comparison of the two images with overlays.
What I did was I put my picture as a layer over yours in Photoshop, set transparency low on it so I could move it arround and align it. The area I thought I could best match the alignment was the area I circled in pink. I then drew pink lines over key prospective points on my picture then turned off the layer to see how those lines matched up on your image. They didn't match well at all, it looks as if there is distortion by the way you modified the image. If you want I can send you the .psd for this file so you can see for yourself. — raekyT 14:23, 26 July 2010 (UTC)[reply]
Yes the lines don't match up. A shear and a rotation will obviously cause different pixel adjustments. I am just saying that distortion is a strong word and that I don't like the extra bit clipped off the left to eliminate the lower left whitespace. In this case, the "distortion" is very minor and I am not sure worth arguing about, but if you think it is significant, you know more about photography than I.--TonyTheTiger (T/C/BIO/WP:CHICAGO/WP:FOUR) 15:21, 26 July 2010 (UTC)[reply]

Not promoted --Jujutacular talk 14:04, 4 August 2010 (UTC)[reply]