From the category archives:

Processing Technique

Twas the Night Before Christmas

by Tim Dempsey on December 24, 2009

Merry Christmas to All!!, originally uploaded by TimDD.


‘Twas the night before Christmas, when all through the house

Not a creature was stirring, not even a mouse;

The stockings were hung by the chimney with care,

In hopes that St. Nicholas soon would be there;

The children were nestled all snug in their beds,

While visions of sugar-plums danced in their heads;

And mamma in her ‘kerchief, and I in my cap,

Had just settled down for a long winter’s nap,

When out on the lawn there arose such a clatter,

I sprang from the bed to see what was the matter.

Away to the window I flew like a flash,

Tore open the shutters and threw up the sash.

The moon on the breast of the new-fallen snow

Gave the lustre of mid-day to objects below,

When, what to my wondering eyes should appear,

But a miniature sleigh, and eight tiny reindeer,

With a little old driver, so lively and quick,

I knew in a moment it must be St. Nick.

More rapid than eagles his coursers they came,

And he whistled, and shouted, and called them by name;

“Now, Dasher! now, Dancer! now, Prancer and Vixen!

On, Comet! on Cupid! on, Donder and Blitzen!

To the top of the porch! to the top of the wall!

Now dash away! dash away! dash away all!”

As dry leaves that before the wild hurricane fly,

When they meet with an obstacle, mount to the sky,

So up to the house-top the coursers they flew,

With the sleigh full of toys, and St. Nicholas too.

And then, in a twinkling, I heard on the roof

The prancing and pawing of each little hoof.

As I drew in my head, and was turning around,

Down the chimney St. Nicholas came with a bound.

He was dressed all in fur, from his head to his foot,

And his clothes were all tarnished with ashes and soot;

A bundle of toys he had flung on his back,

And he looked like a peddler just opening his pack.

His eyes — how they twinkled! his dimples how merry!

His cheeks were like roses, his nose like a cherry!

His droll little mouth was drawn up like a bow,

And the beard of his chin was as white as the snow;

The stump of a pipe he held tight in his teeth,

And the smoke it encircled his head like a wreath;

He had a broad face and a little round belly,

That shook, when he laughed like a bowlful of jelly.

He was chubby and plump, a right jolly old elf,

And I laughed when I saw him, in spite of myself;

A wink of his eye and a twist of his head,

Soon gave me to know I had nothing to dread;

He spoke not a word, but went straight to his work,

And filled all the stockings; then turned with a jerk,

And laying his finger aside of his nose,

And giving a nod, up the chimney he rose;

He sprang to his sleigh, to his team gave a whistle,

And away they all flew like the down of a thistle.


But I heard him exclaim, ere he drove out of sight,


“Happy Christmas to all, and to all a good-night.”

… and to all a happy and healthy 2010!

This has been a challenging year for many… so here’s to a positive year of growth, good fortune, and good health to all of my friends, family!

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Expand Dynamic Range from a Single Raw

by Tim Dempsey on February 7, 2009

Surf Hotel Block Island

There are plenty of occasions when I simply don’t have the tripod, or perhaps even the time, to set up the perfect HDR. I have had this image on my hard drive since August, and I hadn’t yet uncovered the techniques that would transform the raw file into a better reflection of what the scene had ‘recorded’ in my memory.

Surf Hotel, Block Island, Rhode Island

Here’s the “after” [by "after" I mean after the image has been recorded on the sensor. In my lexicon, "before" is what I saw and persists in my imagination, i.e. like the image above].

There are several issues we will address one at a time.

First, the shadows on the porch. This porch has a fantastic compass rose painted on the surface, and one of those sky-blue ceilings (to keep the bees away, I’m told). As captured by the sensor, the compass rose looks like a weather-worn indoor outdoor remnant from railroad salvage, and the ceiling is just too muddy. I also find that wood features like shingles, the decking, and the white fence love the effect of the LucisArt or Topaz Adjust filters.

Surf Hotel, Block Island

In this case I worked with Topaz Adjust. But first I had to isolate the sea, bluffs, sky and clouds from the hotel structure, so I turned to the Polygonal Lasso Tool in Photoshop, and created this selection, which I hastened to save as a channel. I won’t go into details (experiment! try! err!), but the Refine Edge dialog is essential, and is an option introduced in CS3 and available when any selection tool is active.

I tweeked the “Adaptive Exposure” slider, and its “Regions” slider to .4, and 14 for this project. I also boosted the “Highlight” slider to .06 in order to protect that beautiful railing.

The “Details” settings were: “Strength” 1.8; “Boost” 1.1. This enhances local contrast, giving the wood surfaces the texture that I think of when remembering New England cottage style buildings.

I “stamped” the layers to consolidate the work so far: (Ctrl-Alt-Shift-E).

Second fix is the sea, sky, clouds, and bluffs in the distance. In the original RAW file, they simply lack the saturation and richness I remember from the moment I pressed the shutter release.

Surf Hotel, Block IslandThis one was an easy fix — and I’ve used this loads of times since I first experimented with it. I grabbed my selection (highlighted it on the channels panel, clicked on “load channel as selection”, then went to my new top “stamped” layer, and clicked on the “Create Mask” icon in the layers panel. This creates a mask and applies the current selection — the area outside that selection is masked “out,” the selection area is now available for adjustment.

After experimenting, I found that simply applying the “multiply” blend mode did the trick. It restored the vibrance I remembered without introducing the extreme pixel damage of heavy saturation adjustments.

Surf Hotel, Block IslandFinal tweek: adjust that horizon line to make the final composition look just right.

So: If you have an extra $6,000,000, this is a great real estate opportunity! If not, you can see why Block Island is one of my favorite places by checking out the BI sets on my Flickr photostream.

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Kinkade Painting in My Own Back Yard!

by Tim Dempsey on January 30, 2009

Kinkade Painting in My Own Back Yard!

Totally Cool On Black
The recent storm left these smooth and cool undulations on the snow in our back yard. So as the sun set, the shadows became deeper and deeper blue. This got a kitchen sink full of processing:
1) seven frame HDR to start
2) photomatix with white point, black point, luminosity jacked pretty high
3) one original exposure blended to restore sense to the sky
4) Topaz Adjust to trick out the moguls
5) Surface blur to mellow out the distraction of the tree line at the edge of the property
6) slight (yes… slight) saturation boost to reds and yellows to make that sun just weep with sadness as it leaves this beautiful setting.

As for the Kinkade reference: my landscaper’s wife commented on some processed photos I made for his sight: “These look like a Thomas Kinkade painting.” I’m just listening to my customers…

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