Post Processing

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Selective Color in Minutes

Friday, July 9th, 2010
Trail closed, selective color

Trail closed, selective color

Or seconds, as the case may be. You may remember this post from a few days ago. It was also posted to my photostream on Flickr, where one of the comments expressed surprise that the selective coloring took no more than a few minutes relative to the rest of the image (total time was two hours).

The trick to getting the selective color so quickly was twofold:

  1. I was fortunate in that the image is almost monochrome already (remember me saying that before?).
  2. I was using Photoshop CS5

To explain: if I were to do this quickly, without the editing out of distracting objects and fine-tuned sharpening, the steps to create this would boil down to:

  • Duplicate the original layer;
  • Convert new (top) layer to B&W;
  • Add a layer mask, showing all grey;
  • Punch holes in the mask to let some color through;

Looking at it like this, you would think that I hand-painted each bit of color.  This should take a lot of time, no? Well, doing it that way would take a lot of time.

I did it a better way.  Remember that this is essentially a monochrome image.  Mostly green, with some blue and some orange.  That means we can almost safely use the Color Select tool in Photoshop to select the individual elements.  The sign, for example:

  • Open Photoshop.
  • Click “Select” in the menu, then “Color Range.”
  • Click anywhere on the orange areas.
  • Move the “Fuzziness” slider until all oranges are selected (you’ll get part of the trail and a few trees, too).
  • Use the lasso tool (or marquis, which is what I used) to unselect (alt-click & drag) everything that I don’t want.

Repeat for the blues.

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Photoshop CS5 and Content-Aware Fill

Sunday, June 13th, 2010

The transition from CS4 to CS5 seems to be going pretty well – there are a few changes, but nothing that’s really thrown me for a loop. A couple things are extremely (potentially) cool, in the sense that it takes very little time to issue certain fixes.  Take the image below, for example:

A View from the Kihei Boat Harbor

A View from the Kihei Boat Harbor

This is a crop from the original, but it has the important part (I’ll post the non-cropped version in a day or two).  Take a close look at the palm trees: looks like a great silhouette of a lone palm, right?  Well, the reality wasn’t so: there were two bunches of palms, one just to the left of the ones you see here.  I didn’t like these extra palms – I felt it distracted from the overall feeling of individual oneness: one set of palms, one Molokini, One Kaho’olawe, one ocean… so the extra palms needed to go.

Click to continue »

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HDR Merging comparison

Sunday, June 6th, 2010
Underwater HDR, Redux

Underwater HDR, Redux

Following up on the thoughts on this post, witness the  image to right.  Now, I’m not claiming it’s the best image, nor am I trying to even state that I’m done with post-processing.  I am, but only because I’ve decided I’m not happy with the composition.

But I am happy with the results of my tests.  In this case, I now know: when doing handheld bracketed shots, Photoshop CS5′s “Merge to HDR Pro” function is incredibly more useful than Photomatix 3.2.  It’s not just the ghosting, although that sure cleaned up a lot.

No, it’s how easily CS5 finds like components and merges them together.  Seriously, it’s just incredible: this is a three-frame HDR, in JPG.  Compare the sharpness (not the contrast) and the merging to this: Click to continue »

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Evening HDR in CS5

Saturday, June 5th, 2010
Evening HDR

Evening HDR

Just a test shot that I thought I’d post. I may be putting up a couple more over this evening. Testing CS5′s “Merge to HDR Pro” function, comparing it to Photomatix Pro. This one is an excercise in rescuing a screwed up frame: I had the color balance set to tungsten when I took this, so everything was hyper-blue. Arguably still is, but that’s the HDR saturation effect. Click to continue »

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A Couple of Crops

Wednesday, March 17th, 2010

Continuing on from yesterday’s thoughts: some crops of the reflectins and thoughts on why they would have made a better photo. Click to continue »

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Complexity in Photographs

Tuesday, March 16th, 2010
Reflections at the Koi Pond

Koi Pond Reflections

Permit me, if you will, the opportunity to share a failure with you.  The image (to the right) is to what I refer to: abuilding reflected on a koi pond.

This was taken at sunset on our recent trip to Hawaii.  The sun had just passed behind a building and the reflections were strikingly strong.  There is no amplification of the effect here. A quick shot and on I went, chasing a tired 5-year old.

Looking at it later, I noticed that something was… missing.  But what? Click to continue »

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The One Thing that sets your photos apart, technically

Sunday, January 31st, 2010

It’s not your camera. It’s not your lens.  It’s not the paper, or the printer, or the print lab.

It’s your post processing. Click to continue »

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Print Shop Review: Adorama Pics

Monday, January 11th, 2010

Disclaimer: anything I put into this entry is purely based on my own experience.  All content is my personal opinion.

Continuing with online printers: this is the last company that I’ll review, and my favorite.  You’ll see why:

Color shifting: Want to avoid it altogether?  Download their color profiles (one per paper/print type). Output your images with that color profile, and what you’ll see, you’ll get.  Take that back: one time their printers were out of calibration.  They re-printed free of charge. Thumbs up, obviously.

Crops: for smaller pics, maybe a pixel.  Larger pics (up to 16×20, in my experience): maybe three pixels. As good as it gets.

Paper quality: all quality papers (Kodak, usually), and you get your choice of finish.  Includes metallics, glossy, others… More thumbs up.

Sharpness: I’ve generally had it hit or miss with them until the most recent print job.  I finally found that they’re considered a “contone print shop”, and you do “contone sharpening”. More about that another day, though.

Overall: AdoramaPix has pretty much earned my loyalty.  Some prices might be higher than with competitors, but the quality is there and they cater to the more advanced amateur & pro alike.

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Print Shop Review: MPIX

Sunday, January 10th, 2010

Disclaimer: anything I put into this entry is purely based on my own experience.  All content is my personal opinion.

Another continuation.  Yesterday was CostCo, today MPIX.  MPIX, in my opinion, has the best Metallic prints of all companies that I’ve used.  I’m not sure it’s appropriate for all outputs, but it seems to work pretty well.  Sometimes it seems to lack smoothness, though.

So, to jump into it:

Color: So long as you follow instructions, no color shifts. That means uploading images in sRGB.  I messed this up once, and the quality was still good – but doing sRGB made it much, much better.  Big thumbs up here.

Crops: no discernible cropping to the edges.  Maybe a pixel or two, but easily acceptable.  Another big thumb up.

Paper quality: decent heft, Kodak endura.  Some may prefer something else, but it’s acceptable.  Still thumbs up.

Sharpening: Oooh, so close.  Big failure here – they flat-out recommend not sharpening the photos. I have a real problem with this – the output needs to be to my spec, not their automated one. Any sharpening at all, in any way, shape, or form seems to give horrible halos

Overall: I’ve used them for the last two years in a row for my personal holiday cards.  After this year, where I deliberately kept sharpening to a minimum, I may not do it again.  They halos are barely there, but… well, they’re there.

Still, the price is right.  And their metallic prints?  Gorgeous.  By mid-year, I may have changed my mind on these guys!

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Print Shop Review: CostCo

Saturday, January 9th, 2010

Disclaimer: anything I put into this entry is purely based on my own experience.  All content is my personal opinion.

Continuing on from yesterday’s topic, a review of CostCo’s print service. To keep things fair, I’ll use the same criteria: color skewing, sharpness, paper quality, and cropping. And before I go in to trashing the CostCo online printing, let me state: most people that I know like their service & see nothing wrong with it.  My problems could conceivably be due to my own behavior (which works fine with other print shops), or it could be the location nearest me.

Color: good God, possibly the worst coloring I’ve ever seen.  Take a nice, warm scene with green grass and a smiling, pink baby.  Got it in mind?  Now turn the grass dull (light) grayish green, the skin tones more yellowish, and remove any character from dirt in the pic.  That’s what happened to me.  I’d say that it’s like submitting an AdobeRGB photo when they’re expecting sRGB – only I’ve done that, and it’s no worse.  And other printers don’t skew it so badly.

The color problem appears to be specific to large prints, BTW.  But in this day & age, that’s all I do, so it hurts.

Crops: Again, one heck of a crop that I’ve seen.  One year I used their 5×7″ photos for our holiday cards.  There was “Happy Holidays” in script towards the bottom, and made sure there was plenty of padding between the edges and the letters.

They still chopped into it.

Paper quality: decent.  Kodak, pretty good weight.  Felt like a waste of quality paper after seeing the color shift.

Sharpness: to their credit, they didn’t add any sharpening.  The end results were more or less what I expected.

Overall: I won’t touch their photo service with a ten-foot pole. YMMV.

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