Nature Notes

October 26, 2008

Photoshop Tutorial- Fixing Perspective

Filed under: Landscape,Photoshop Tutorial — Tags: , — Harold Stiver @ 7:00 am

Original with "tipping" Boathouses

Yesterday I posted some images of these boathouses from Port Rowan. I mentioned that I had fixed the prospective. Above is the original with buildings on a slant towards the edge of the frame. This is due to the nature of how light hits the sensor or film through a standard lens. There are Tilt/Shift lens designed to correct this problem but they are not in most people’s camera bags.

While often the whole image is selected for correction, we are just going to work with the buildings. First we give ourselves room to work with by adding canvas all around the image (Image 2).

Image 2

Then we use the Rectangle Marquee tool to select the portion above the post. If we right click on the selected portion, we can choose “Free Transform” from the menu, and another right-click allows us to choose “Skew”. We now grab the corner handles on the selection at each top corner and drag them inward, and drag the bottom handles outward,  until the side of the buildings are vertical (Image 3). When satisfied, double-click or press enter.

Image 3

We crop the image to eliminate the border and do a bit of touch ups like cloning in the small empty triangles from the corrected portion and are image is ready (See final image below)

Final

Index to Photoshop Tutorials.

This tutorial is a part of the Photoshop Workflow Series

.


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October 25, 2008

Boathouses in the early morning

Filed under: Canada,HDR,Processing Tips,Scenic — Tags: , — Harold Stiver @ 7:00 am

Port Rowan Boathouses

In Port Rowan, Ontario, this interesting set of boathouses lines the tiny harbor, and makes an attractive subject. A touch of HDR treatment brings out more of the color and texture.

The biggest problem faced in processing was correcting the prospective, with the lens I used the houses were tipping towards the sides of the frame. In tomorrow’s post, I’ll give you a tutorial on Fixing Perspective in Photoshop.

Port Rowan Boathouses Port Rowan Boathouses


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October 24, 2008

Birding the Salton Sea, California

Filed under: Birds,California — Tags: , , — Harold Stiver @ 7:00 am
Salton Sea Sunset

Salton Sea Sunset

The Salton Sea is a large inland sea in southern California of high salinity. It was created after diversion schemes on the Colorado River ran into a major flood in 1905. This flooding event continued for two years resulting in millions of gallons of water pouring into the area which is the current Salton Sea.

It has become a major wintering area for many bird species. These include Western Sandpiper, Marbled Godwit, Willet, Long-billed Dowitcher, Red-necked Phalarope, Black-necked Stilt and American Avocet.

One of my favorite species was Burrowing Owl, which can be found by checking out the banks of the irrigation ditches which line the roads.Also found in the surrounding fields are White-faced IbisCattle and Great Egret, and Wood Stork.

Burrowing Owl

Burrowing Owl

In the drier areas you may see Western Kingbirds, Gambel’s Quail, and Abert’s Towhee.

The Yellow-footed Gull is rarely found anywhere else in the U.S. but here.

 

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October 18, 2008

Harbor Details, Maine

Filed under: Maine,Scenic — Tags: — Harold Stiver @ 7:00 am
Harbor Rope, Maine

Harbor Rope, Maine

If you find a working harbor, you can usually find some interesting elements to photograph. In Maine, this can include lobster pots as well as rope and floats.

How can you tell if it is a working harbor? It doesn’t have a Starbucks Coffee.

Lobster traps, Maine

Harbor Floats, Maine


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October 17, 2008

Golden Ferns, Maine

Filed under: Flowers,Maine — Tags: , — Harold Stiver @ 7:00 am

Golden Ferns, Maine

In the fall. there are great sweeps of golden ferns, in coastal Maine woodlands. I think this is Ostrich fern, Dryopteridaceae matteuccia. If anyone can confirm or correct, please do.

Golden Ferns, Maine


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October 1, 2008

Some good news from Argentina about the Albatross

Filed under: Argentina,Conservation — Tags: , , — Harold Stiver @ 7:00 am

Laysan Albatross

Laysan Albatross

Yesterday I posted about the dire state of the Albatross family who are facing extinction due to long line fishing practice.

Some recent news from Argentina is excellent. The Argentinean Federal Fisheries Council has started to require measures to reduce seabird mortality from long lining. These include:

  • Weights on the lines to keep them down in the water
  • Setting lines at night
  • Bird scaring devices (see above courtesy of Save the Albatross)
  • Releasing of captured birds

These items are fairly straight forward and should not cause economic burden to the fishing business but they go a long way towards solving the problem.

This, of course, is not effective against those who ignore the law, and that is another part of the solution. Policing of regulations.

See Birdlife Internationals article on the Argentina measures.


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