Sunday, November 9, 2008

Bleu, Blanc, BIC: in praise of the "quatre couleurs"

I was grading papers and—oh how easy it is to get distracted—I realized that the inventor of the Bic four-color pen (aka quatre couleurs in French grade school parlance) must have been a nail biting, eraser-chewing, pen cap-eating child. That glorious little bite-sized finial that crowns the pen-of-many-colors is perfectly engineered for the orally fixated. As one who routinely destroys the tops of lesser pens, I marvel at how perfectly the teeth fit on top of this wonder, fearless of the ponderous bite or stressful gnaw.

The pen proudly declares MADE IN FRANCE. And on its side, the blue, white, and red form a tricolor flag. Now that more and more public places in France have adopted non-smoking policies, maybe more people should carry around the nerdy four-color pen. But chewer beware! Release the spring-loaded color changers onto your lip, and your reverie is gone in a burst of pain (not unlike falling asleep in a French grade school).

Saturday, November 8, 2008

Boy's (still) Life


If you are new to my blog, you should know that we explore a theme each month (called the "Monthly Special") and encourage people to participate and link back their results. This month's theme is "still life."

We were cleaning out the garage today (a Sisyphean task if ever there was one) and we came across boxes of personal memorabilia. We sorted through, weeded out, and then re-boxed our souvenirs. A few objects immediately took me back to my childhood room in Oregon. Proust called the phenomenon of sudden recollection la mémoire involontaire—a sudden and vivid memory that cannot be summoned at will, but that hits with full force the moment a certain sense is activated. In his case, it was the smell and taste of tea with madeleines. In mine, it was the "Men From Planet Earth" tile that sat in my windowsill since 1969.

I know nothing of its origins. Did space-age enthusiasm drive my parents to buy it right after the Apollo 11 landing? Did they ever wonder if I might dream of becoming an astronaut? (I didn't. I wanted to be a baker.) Even as a child, I was ambivalent about the aesthetic merit of the tile. But I never moved it. My room went through changes (including a very funky space-age theme—a testament to indulgent parenting) and the tile remained. And so, due to all those years of seeing it, the tile has soaked in my childhood. Strangely, it gives it back as much as any scrapbook.

I couldn't just put it back in the box. I took it, along with a little totem pole from a childhood visit to an Indian reservation, a compass and match holder (matches still inside) from bygone days of scouting, and I made a still life. Rather than photograph against a blank wall, I found a photo I took of Max (age 4—the same age I was when we moved from Berlin to Oregon) and used it as backdrop. All my childhood photo albums were lost when we moved here from Seattle, so he's the closest thing to a photo of myself that I can get—and he's wearing a hat I used to wear in Germany.

Do you have objects that create Proustian moments of involuntary memory for you? Do you have a box full of memories? Try creating your own still life, post it, and link back to the November Monthly Special.

Wednesday, November 5, 2008

Using curves in Photoshop to adjust tone and color in a portrait

This tutorial is the first in a series that will teach you a basic workflow for portrait retouching in Photoshop (some of the future tutorials will also work in Elements, but not this one). I will try to give you enough information to get good results without getting mired in pro-level details. Future posts will include blemish removal, teeth whitening, eye retouching, and so on, but before you do any of those things you need to fix the overall lightness and color.

1. Open a photo (Your next family Christmas card? A new Facebook profile picture?). Most photos will greatly benefit from the following simple adjustments. And unlike one-click automatic adjustments, the following method gives you customized control. Once you understand the basics, you can correct color with more precision or even stylize color in unexpected ways.

I will be using this engagement photo:

To be fair: Step 2 (in which you duplicate the background layer) is not strictly necessary in this tutorial
, but I think that step should be automatic (for reasons that will be apparent in future tutorials), so you may as well practice good habits now.

2. Hit Command-J (PC: Ctrl-J) to duplicate the background layer. You will now see "layer 1" in your layers palette just above the background layer.
Note: If the duplicate layer does not appear, double click on the word "background." This will bring up a dialog box to rename the layer and "unlock" it. Hit return to name it "layer 0" or you can rename it "original" or anything else. Some people do this as habit before duplicating a layer.

3. Open what is called a "curves adjustment layer" by clicking on the pull-down menu in the bottom of the layers palette:
Once you have done that, you will see a new layer (which should be active) that looks like this:

Notice that there is no thumbnail of your photo on your curves layer. That is because it does not actually contain your photo; it only contains the adjustments themselves. On the left side, that curvy line represents—surprise—the curves adjustment, and on the right, a layer mask (which will not be used in this tutorial (but for the curious: it allows you to selectively remove or "mask" adjustments).

4. Next, you will lighten or darken your photo on the curves adjustment layer to get better skin values. Double click the curve box on the left side of that layer to get a dialog box like this:
It looks intimidating, but we are going to keep it easy.
A quick explanation to demystify it: the horizontal axis represents the tonal information within the image, running from black (left) to white (right). The vertical axis shows how much information falls within various tones. For example, the two "mountains" show that my photo has a lot of light and dark tones, and the "valley" shows that it has fewer midtones. Naturally, your photo's histogram will differ. If too much information is on the far left, you probably have an underexposed image. And if too much information is on the far right, you probably have an overexposed image.

Pep talk digression:
I am not going to pretend that curves adjustment layers aren't powerful and complex tools. They are. But then, so are computers, right? And my three-year-old daughter enjoys playing Nick Jr. games without knowing how to program. So my point is, Dora now, programming later. Or not. You may never need to get very complicated.

And now, it's curves playtime. See that line cutting diagonally across your histogram? You can click anywhere on that line (top right is white, bottom left is black) and an adjustment point will appear. You can add as many points as you want, but let's just stick to one for now. Help! you say, I was too hasty and I've already made ten of those points on the line! No problem. You can click on a point and drag it off of the line (drag way off, out of the box) to make it disappear.

Since your photo will vary, this is a good time to experiment. You probably will want to stay away from the extreme ends. Also, don't go hog wild. Keep it subtle. Set a point and pull it toward the right and down to darken, or to the left and up to lighten. As long as your "preview" button is checked you can see the effect in your photo. Toggle the checked preview box on and off to compare. I decided to lighten my photo a little bit. Here is what my curves adjustment looks like:
A small, but not insignificant change. Depending on your photo, you may want a larger adjustment. When you have something you like, click OK.

5. Now it's time for another curves adjustment. Add another curves adjustment layer (so you can appreciate the changes for each step) just like you did in step 3. This new curves layer will appear on top. Double click as you did before to open your new adjustment layer.
In the dialog box at the top left it says "Channel RBG" along with a pull-down menu from which you can choose the red, green, or blue channel. Go ahead. Check them out. You can set a point and pull one way or the other on each of these channels as we did in step 4. Pull to the left and increase one color, pull to the right and bring out its opposite.
Red (left) is opposite Cyan (right).
Green (left) is opposite Blue (right).
Blue (left) is opposite Yellow (right).
Start with the Blue channel:
Since I want a nice warm photo, I will click in the dead center of the line and pull toward the bottom right (the yellow side).

With my preview box unchecked you can see the before:
And with it checked on again, the after:
The second one looks warmer, and in my opinion, more inviting. Now do your own blue channel adjustment, but don't click OK. You will want to move on to the Green channel before you're done.

6. Now that I've warmed up the blue channel, I am seeing a bit too much green. So in the Green channel, I am going to set a point in the middle (as I did before) and drag it a little to the blue side.
How do you know how much and which colors to change? Experiment and you will educate your eye. Some people seem to be able to look at a photo and say "too much blue" or "too much red" with no problem. If you are not one of those people, experiment with the channels and see what pleases your eye.

Another pep talk digression:
There is no right answer when it comes to color. For example, a lot of people are doing heavily yellowish looking photos right now. For those not into that trend the yellow may represent an ugly color cast. Similarly, as a rule, bluish skin is undesirable. But for a certain steely and desaturated look, it may be perfect. You decide what looks good. The important thing is that you are no longer at the mercy of an auto-adjust button.

7. I am leaving the red channel alone, but if you want to tweak it, you know how.

8. One final curves adjustment will give added contrast. Add another curves adjustment layer. Double click and leave the dialog box on all channels (as opposed to the individual R, B, or G ones). This time you are going to add what is called a classic "S" curve by manipulating two points. As you place and then pull a point somewhere in the top half (not too high up or you will clip highlights) to the left side, and another point in the bottom half (not too far down or you will lose shadow detail) to the right side, an S-shaped curve will appear, and more importantly, you will increase contrast. Here is what my subtle s-curve looks like (not much of an "s," is it?):
The more prominent your "s," the greater the contrast in the result. Try it on your photo.
That's it for now. If you practice this tutorial on several photos, it will soon become second nature.

Below are the before and after photos.
before (not bad, but not as warm as it should be)
after (warmer, with a little more contrast)

The differences you see may depend upon your computer monitor, but what I am seeing is an improvement that is not overstated. The more portrait retouching I do, the more I am a fan of restraint. Unless you are going for a highly stylized look (which I also love), you don't want something that screams out "Hey! I've been Photoshopped!"

Tuesday, November 4, 2008

Election Night Still Life

On television I see jubilant crowds in Times Square.
The news says We go now to Seattle.
Cue bird's-eye shot of streets packed with people taking in the historic moment.
I go outside to photograph what a democratic victory looks like in a red state...

Still life of leaf, puddle, and truck, November 4, 2008 (click on any of the photos to enlarge)

Still life of truck, November 4, 2008

Still life of leaf, November 4, 2008

I would much rather be in a large city right now. I love the energy of a crowd. When in Paris, I always go to the demonstrations to take photos. I have been lucky enough to be in Paris for the past two presidential elections.

But here I am in the quiet of Utah, where all but two elementary school students (my son, Lucas, tells me) "voted" for McCain, the streets are vacant.

Lately, I have been watching a lot of bleak, poetic Russian films by Tarkovsky. My photos of the empty, wet streets were no doubt influenced by his stark aesthetic.

There are no crowds to photograph here. But instead, the lone leaf or the isolated truck stood out to me as a different kind of still life.