Friday, March 30, 2007

Green Lake


This squirrel at Green Lake seemed to have no sense of fear.
Maybe a lot of people feed him peanuts.

Squirrel.


Squirrel walking on hind legs carrying leaves in his front paws.

Squirrel carrying leaves.


A duck.

Duck.


More ducks.
More ducks.

PixiPort

PixiPort is a website for photographers. While it has galleries much like other sites, it also has a lot of useful information to help further a photographers career. Information on marketing, techniques, etc.

The sites strengths are in it's aesthetics, it is artistic in it's very design, and in the wealth of information and artwork that it carries.

The sites weaknesses are it's lack of organization and the fact that most of the gallery photographs are really low resolution.

One of the first items in the menu is, "A Venturing into the Labyrinth - a seeker's guide to Pixiport", which is not a bad description of the site, a Labyrinth in which it is easy to get lost. It's described as a portal to portals, and it is structured that way, broad category takes you to a page, various artists on that page take you to other pages. And then unlike other sites, where each artists space is similarly structured, what you find at the artist level is entirely individual. This necessitates learning to navigate every artists space individually, but the flip side to that each artist has the freedom to arrange their space the way they like.

Educational, entertaining, and editorial articles appear to be strewn about more or less randomly.

Overall it's a pleasant experience but one which can eat a lot of time, and owing to the lack of any sort of linear organization, it's difficult continue where you left off because there is no clear path, direction, or journey. It's rather like life in that sense.

Wednesday, March 28, 2007

PaintShop Pro

I've read a number of reviews regarding PaintShop Pro XI and since I've used PaintShop Pro X for several months and then PaintShop Pro XI for a month I thought I'd kick in my two ¢ents worth.

In that time I've done quite a lot of editing of photos and I can tell you this program is worth it's weight in gold. I can't afford the golden standard, PhotoShop, which if you follow the link you can see sells for a hefty $649.

That put Photoshop out of my reach, I suppose it within the reach of people who can afford $5,000 DSLR camera systems with all the accessories.

That said, PaintShop Pro does most of what I need for less than $100. PaintShop Pro allows me to fix a lot of common problems with photographs. For example, taking a photo of items that should be vertical or horizontal, waterlines, buildings, it's difficult when shooting hand held to get the photo straight, sometimes even with a tripod it's difficult. But paintshop has a straightening tool that makes correcting that very easy.

When shooting with the a wide angle lens there is a certain amount of fisheye distortion, PaintShop Pro has a tool that does a pretty good job of that.

Sometimes perspective results in what should be parallel not being parallel. Sometimes this is desirable for things to look natural from a viewers perspective, railroad tracks being an example, other times it is not, shooting the edge of a forest, or buildings in a downtown area. In those situations a perspective tool makes it easy to correct.

Now, I have a problem using things as they were intended to be used and I discovered that there are also some fun abuses one can do with the perspective tool to create impossible situations in photographs. Here is an example:

Carl and friends from a non-existent perspective.


We always try to get exposures right but various real world conditions and human errors sometimes messes that up. Paintshop Pro has a wide variety of ways to alter brightness, contrast, areas that are too dark or too light.

One of the most interesting tools that alters contrast and brightness is the Clarify tool. Clarify increases contrast in areas of uniform brightness, increases brightness in dark areas, and overall gives a photograph a more vivid interesting appearance. Like all good things this tool too can be abused for unrealistic effects.

Mangled Hallway


This is a hallway in my house. This is what happens when you take an image and run it through Clarify at maximum strength four times. Massively exaggerated detail contrast, and strange coloring. It's kind of like Disney and Goth got blended and then took acid.

This also demonstrates the fisheye tool though I didn't tweak it exactly, the vertical items are a lot more vertical than they would have been without using it at all. It has an adjustment from 1-100 that determines how much it adjusts the image and it's something that you have to gauge visually and try. The preview window in this case is really too small to be useful so to really get it right you have to apply and if it's not good, control-Z which undoes the last thing you did, change the value and re-apply.

Another thing that it has that is really cool is a scratch remover and an object remover.

House with wiring removed.


The original photograph had a telephone pole and wires all over the place. I decided I wanted to see what it would look like with underground wiring.

The scratch removal tool can remove any thin straight item, scratches, wires, doesn't matter. I used it to remove the wires. I tried to use the object removal tool to remove the telephone pole but filling in that large of area from surrounding material didn't really work, so I used the clone brush, which allows you to clone a part of the image, to clone in a fake tree. I didn't want it to look like an exact clone of another tree however so I cloned in branches and parts of branches to make it unique.

The object removal tool, the scratch remover, and the clone tool, together can allow you to remove many undesirable elements from an image.

Another tool that is often useful is a high pass sharpening tool. If you get a photo where the detail is a little bit soft, you can crispin it up with this tool and if the noise is low in the original you can create some significant resolution gains.

I have found that what can work well is to apply it multiple times with different pixel settings. For example, perhaps first with eight pixels, then four, then two. Each step brings out finer detail. Doing this only works if the original photo was low noise, but it can really improve detail.

There is a noise removal tool that it calls one step noise removal in the enhance menu that can be really helpful. Under many situations it can remove a large amount of image noise without removing image detail. It is particularly good at not removing noise without hurting detail from things with linear features. It tends to be less kind to detail if the detail has a lot of randomness to it, and on the beach, trees with a gazillion small leaves, etc.

The down side to the one-step noise removal tool is that it can creates something that that resembles jpeg artifacts. There is a jpeg artifact removal tool but it works marginally at best. The contrast of the artifacts it creates is not high, but if you run the resulting image through clarify, they become very visible.

Most negative reviews I have seen of this product come from people who have use Jasp Photoshop before Jasp was acquired by Corel. Those people don't like the fact that a photo organizer product that was previsiouly included is gone.

For me it doesn't matter, I have tools for that which I prefer for photo organization. People also complain about the photo browser. I agree it's somewhat hostile.

Another issue I have with my Camera, a Canon PowerShot S2 IS, is that the camera has some issues with chromatic aberration, particularly when zoomed, PaintShop has an abberation removal tool that works quite well. It also has a purple fringe removal tool that works nicely when purple fringe happens.

These tend to be the features I use most often at present. I will elaborate more perhaps when I've used it long enough to sample some of the other features.

Wednesday, March 21, 2007

What is Art?

These aren't my photos, they are photographs by other artists that I am posting here in relation to come things I'd like to express about photographic art in general.



Ariel-2 by *vahid-naziri on deviantART


Envy by ~xasylumx on deviantART

In the pursuit of things artistic many artists will intentionally commit technical sins like gross over exposure (above).


Bedroom 3 by ~BlackChampayne on deviantART


universal by ~nwm664-09 on deviantART

Or gross under-exposure.


In the artistic context photography has a number of functions. Photographs are a way to communicate an emotion or idea. For me, a way to not only show other people how I see something, but how seeing something made me feel, or that I resonate somehow with something.

When I see photographs like the above, what goes through my mind is wondering, does the photographer actually see the world this way?

Another function is to capture something transient beauty. The sun splitting just before it dives below the horizon, a lightning strike, bird in flight, or a smile. Some would say their value lies in the very fact that they are temporary, that we value them more because we know they will be gone soon, and perhaps then photographs are actually doing a disservice.

That's a value judgment that people will have to make individually. It is an aspect of photography I enjoy perhaps since I have not really come to grips with the transient nature of life yet.

The grossly over exposed, under exposed, inverted, digitally manipulated, they have their purposes. They can draw awareness to a point of interest and force us to look at things differently, or they can just be used to distract from a bad pose or otherwise uninteresting subject.

Personally, I like photographs that are clear and vivid and make me feel like I was present where the photograph was taken.



couple 2 by ~aprilarevalo on deviantART


Mark and Rachel wedding 3 by =wildplaces on deviantART


I like color and intensity too. I wish I could create anything remotely comparable to those last two here. The first by April Arevalo and the second by Andy (last name not given).

I'm working on my own photography as time and funds permit. Lately been too broke to waste any time or money to get out just for that. Hopefully things will get better in this lifetime.

Sunday, March 18, 2007

Night Photography Noise

Night photography involves low light and long exposures which present special problems for digital photography.

Digital cameras suffer from random noise resembling snow on a television. A high ISO setting results in a high noise image.

Digital cameras may have some defective pixels. Normally the camera software works around these issues and you don't even notice. At night with low light and long exposures, the camera software seems to be unable to differentiate between noise and image data does not remove this.

There are a number of techniques you can use to reduce this in the final image. First shoot with the lowest ISO permitted by the subject. The random noise that does remain can be greatly reduced by software. Photoshop seems to be the gold standard in photo processing software but I'm broke so instead use Paintshop Pro which is less expensive. Paintshop Pro has a smart noise reducer does an excellent job of removing this type of noise usually without sacrificing image detail.

To get rid of the stuck pixel dots there are a couple of techniques you can use. They rely on taking a flaw picture to capture this fixed noise without the image. Just put the lens cap back on and shot for the same duration.

One technique detailed in the Digital Photography Review, involves using the reference frame to select the points on the real frame (using the magic wand selection tool) and then use the scratch and ding filter to remove them (uses surrounding pixels to replace them).

Another method is to invert the reference frame, add to the original, then tweak the resulting histogram back to where you want it. I've played with this a bit but not really got it to where I am happy. I think it's because the stuck pixels tend to be "ON" not at some intermediate value so underlying image data is lost.

With my camera there usually aren't more than two or three noticeable goofed pixels so I usually just use the clone brush to clone in undamaged data over them.

An annoying problem I haven't found a good solution to is bleed, on films a brightly exposed area may bleed into the area around it. This varies greatly from film to film. I've also experienced bleed with digital, and because of high contrast at night it is hard to avoid.

There are some trade-offs, for example, I've found I can reduce bleed by underexposing slightly and then stretching the resulting data. This reduces bleed but at the expense of noise.

One more problem I've run into, "stars" resulting from point sources, Point sources of light get radial streaks leading away from them. The iris on my camera has six leaves, point light sources get six radial streaks.

Normally night photography requires a tripod. The Canon Powershot S2 IS includes image stabilization and I have found this actually makes hand-held night photography doable in situations where an exposure of one second or less will suffice and there isn't wind or other factors causing involuntary movement.

Tuesday, March 13, 2007

Trees at Carkeek Park

I stopped by Carkeek Park to re-shoot the solar installation at the Carkeek Environmental Learning Center. I had a couple of book publishers contact me regarding existing photos that I had taken previously and those were of so-so quality so I thought I'd get some better shots.

While I was there I shot some photos of the park. Some turned out to dark as did this one initially but playing with paintshop pro gave it a surreal look. Click on the image to see a larger view. If you would like to see other images take a look at my gallery.

Trees at Carkeek Park Seattle

Thursday, March 8, 2007

Colors

These are not my creations. I've always been fond of saturated colors. These are some photographs on Deviant Art by various photographers that I enjoyed.


Artists' Block: Taking It All by =Catwoman69y2k on deviantART
I think this one will damage your retinas if you look for too long.


Over Her Shoulder by ~usuakari on deviantART
Her skin tones fit so well with the rock.

This post used to have a few more exceptional photos from Deviant Art, but the artists have since removed them. Seems silly to provide links specifically for using in a blog if they photo isn't going to remain permanently.

Tuesday, March 6, 2007

Circumstantial Sunset


I was trapped in a traffic jam on Lake Washington Blvd in Kirkland and
snapped this out of the car window while waiting for traffic to move.
Google