Threads of light.

Lurie Reflecting Pool, North Campus
University of Michigan
April 27, 2013
Stump details from cut crab apple trees.
One of several trees that were cut down during 2012 in order to remove non-prairie specimens from Dow Prairie.
.
Dow Prairie, Nichols Arboretum, Ann Arbor
April 5, 2013
Stump details from cut crab apple trees
The green really was present in the wood, not just in this stump but in a couple of others as well.  The processing has emphasized it primarily via levels and contrast adjustments, not by saturation adjustments.
.
Dow Prairie, Nichols Arboretum, Ann Arbor
April 5, 2013
Stump details from cut crab apple trees.
This one was cut several years ago and clearly was either dead or dying at the time.
.
Dow Prairie, Nichols Arboretum, Ann Arbor
April 5, 2013
Stump details from cut crab apple trees.
From the presence of sawdust, you can tell this is a relatively recent cutting.
.
Dow Prairie, Nichols Arboretum, Ann Arbor
April 5, 2013
D091-2013  Mother Nature's April Fool's Day joke on us here in the Great Lakes region - ice in puddles and ditches instead of blooms on trees and in the grass.
.
Nichols Arboretum, Ann Arbor
April 1, 2013
Ice abstract with a touch of green...getting in the mood for St. Patrick's Day.
(FYI, the colors are all real.  They are simple objects that were either reflected by the ice, or whose colors were transmitted by the semi-translucent ice.)

DP075-2013.  Posted March 16; processed March 15

Taken March 14 from the back deck of the house.  This is nothing more than the dome of a bird feeder with a wire mesh ball filled with peanuts under the dome, and a hanging feeder with a green metal top also hanging under the dome.  More pictures of the same subject are available starting with this image:  http://smu.gs/14cn0Qd
A study in the color that can be hidden in nearly monochrome images, especially in "white" light such as that from the sun.  Simply amping up the saturation in photoshop brings the colors vividly to life.  In contrast, doing a BW conversion, and seeing little detectable change re-enforces just how 'hidden' the colors were.
The starting image (referered to as the original below) is a closeup of the perforations of a "sun-brella" that is blocking the sun, which is itself being screened by low thin clouds.

DP071-2013.  Posted March 12; processed March 11; taken March 10.

The four frames, clockwise, starting in the upper right, are:
(1)  Original full color;  (2)  100% saturation applied to (1);   (3) BW conversion of (1), rotated 180 degrees;  (4) Two filter layers, Fresco and Plastic Wrap, applied at reduced opacity to (2), followed by a 180 degree rotation.

The full sized images of these four frames, all in the same orientation, can be see in my 'Fun with Filters' gallery here.  In those images you can get a better sense of details of the colors brought out in (2), and the effect of the filters, which is somewhat difficult to see in this composite.  http://arctangent.smugmug.com/Photography/Creative-Alterations/Fun-with-filters/10668106_75xhP9  (They're image set #38, currently at the end of the gallery)
Sun-brella.
Shot looking up through the perforated molded metal sun shade mounted over an outdoor table.  Converted to BW.  The sun was mostly masked by thin clouds at the time of this shot, but you can see it as a ghostly spot.

North Campus, University of Michigan
Ann Arbor
March 10, 2013
Threads of light.

Lurie Reflecting Pool, North Campus
University of Michigan
April 27, 2013
Threads of light.

Lurie Reflecting Pool, North Campus
University of Michigan
April 27, 2013
Threads of light.

Lurie Reflecting Pool, North Campus
University of Michigan
April 27, 2013
See photo in original gallery.