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The HDR race continues as TrueHDR gets updated

We've been keeping a close eye on the race for the best HDR (high dynamic range) photo app for the iPhone. In my latest survey, I advised that progress would be fast as paid apps move to compete with the free Apple HDR software, and that's what's happened.

TrueHDR, a US$1.99 app, has been updated to add a fast Autocapture mode and a SemiAuto mode (where you can drag the exposure control points around to get the best picture).

I thought it was worth another quick look in order to see how the updated TrueHDR compares to Pro HDR ($1.99) and the built-in iPhone 4 camera (with and without the HDR processing).

My results were similar to the last test, although TrueHDR takes the photos faster. Sadly, it still lags in processing, taking 48 seconds to deliver a finished image. Pro HDR takes 24 seconds, and Apple's built in HDR delivers an image in under 2 seconds. Both Pro HDR and TrueHDR allow you to do the processing later, so if time is an issue, just keep shooting and make your HDR photos after the fact. TrueHDR also has a quicker processing mode, but color saturation suffers.

To test the cameras, I found a scene that had bright sky and dark shadows. My results were not surprising, but they were interesting. Without any HDR, the image had a pretty blown out sky and deep shadows with loss of detail. Using the built-in Apple HDR, the skies improved, and there was some detail recovered in shadows. I consistently find the Apple HDR to be subtle but natural.

With Pro HDR in auto mode, the shadows were recovered nicely, but there were some areas of the exposure that seemed a bit too overexposed. I suspect that manually choosing the exposure points would have fixed that, but since the Apple HDR has no manual mode, I wanted to test all of the apps using the automatic option.

TrueHDR seemed to have the best overall balance of exposure. In that respect, the app seems improved from the last version I tested, which was overly contrasty.

For many people, the built-in Apple HDR will be just fine. It is very natural, and I've never found it to oversaturate. Pro HDR brings richer colors, and it's the only app that lets you adjust saturation, brightness, contrast, and color balance after you have taken the image but before you save it. That allows you to adjust your image to taste. If you think your image is oversaturated, you can tame it. TrueHDR has an improved shooting mode, but it is still very slow in processing and tone mapping the image. It's twice as slow as Pro HDR, and neither one is as instant as the built-in Apple HDR. Of course, Apple has an advantage because it has complete access to the hardware, which is something that it hasn't offered to third parties.

You can see the images in the gallery and make your own decisions, because liking or not liking an image is a matter of taste. My images aren't full-sized (to keep them loading fast).

It's worth noting that TrueHDR and Pro HDR run on 3G the 3GS and the iPhone 4, but the Apple HDR processing requires an iPhone 4. We're going to keep an eye on all of these apps and watch for anything new that pops up. With Apple in the game things are going to be very competitive, and the developers of the paid apps believe that they can bring stronger features and better images as they continue to upgrade.



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We've been keeping a close eye on the race for the best HDR (high dynamic range) photo app for the iPhone. In my latest survey, I advised...
 

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Trevor

Readers might be misled by the sentence, "...TrueHDR and Pro HDR run on 3G iPhones."

I think it's worth clarifying: both Pro HDR and TrueHDR's descriptions indicate they only install/run on the iPhone 3GS and iPhone 4, so none of these apps is suitable for the original iPhone or iPhone 3G.

September 13 2010 at 7:07 PM Report abuse rate up rate down Reply
chrisallen

"Well, my opinion is more correcter than you're's"

September 13 2010 at 2:43 PM Report abuse rate up rate down Reply
Neil Kovac

Anyone who's into their photography understands the massive benefits of HDR; not just as a way of technically improving a photo but also making a photo more pleasing/creative to the eye. Of course there are occasions when an HDR image can appear over processed or occasions where HDR images (i.e. the combining of images at different exposures) don't look as nice as the original ... but that's the skill of a true photographer; knowing when and how much to apply. Obviously no one would use an iPhone seriously to discover the wonders of HDR, but as a piece of software on something as humble as a phone, to have this feature is a massive benefit ... providing users understand how it works and where best to apply.

I recommend viewing the following link:

http://www.youtube.com/watch?v=BlcLW2nrHaM

September 13 2010 at 2:31 PM Report abuse rate up rate down Reply
John

Can you PLEASE upload these in high resolution? The gallery just doesn't cut it.

September 13 2010 at 1:29 PM Report abuse rate up rate down Reply
SquishyBrain

"The only real "result" here is that the Pro HDR one is noticeably poorer than the rest."

I use all three programs and I believe that ProHDR gives you the best images. Remember that these sample images were all taken using the each program's auto mode. ProHDR's images can adjusted afterwards using their Brightness, Contrast, Saturation, Warmth and Tint controls.

Since HDR is not appropriate for every photo. I choose to use HDR for those photos that would benefit from this technique. Part of the fun of taking a pic using HDR is that you can use it to recover data from, what would normally be an underexposed or overexposed portion of the picture. Or you could use the post processing controls to create a dramatic image. That backlit photo of the family gets adjusted to make the image look natural. Whereas the pic taken of the the fire engine red bridge at the japanese garden gets the saturation boosted in order to bring out the rich colors. These options are not available with TrueHDR or the Apple HDR.

September 13 2010 at 1:07 PM Report abuse rate up rate down Reply
Andy S.

To my eye, the Apple HDR photo looks the best. In all of the others, the line of rocks is completely blown out and the detail is lost.

September 13 2010 at 12:17 PM Report abuse rate up rate down Reply
1 reply to Andy S.'s comment
mplaisance

I agree! Glad I am not the only one who noticed this:) I try to not focus too much on color because I was not there to take the photo, so I have no idea as to what color say the wall of the building was for sure. Instead I try to look at the shadows, edges, and details such as on the rocks. Clearly even to an untrained eye this is evident!

September 13 2010 at 11:42 PM Report abuse rate up rate down Reply
Steven

I suspect if you think TrueHDR and Apple's build HDR are "so close that it isn't worth arguing over", that maybe you need a new monitor or something.

They are very different in exposure and color values.

Which one is better is subjective, but that fact that they are quite different is not.

September 13 2010 at 11:18 AM Report abuse rate up rate down Reply
tyr.goossens

I must say I prefer the TrueHDR photo in the examples. It brings out the detail without loosing so much of the darks in the shadows which makes it more vibrant without going a bit unnatural like Pro HDR.

September 13 2010 at 10:18 AM Report abuse rate up rate down Reply
oz

It would be helpful if you could also post a histogram with each picture so you could easily see whether the highlights are blown out or whether to expect any details in the shadows. A Histogram gives you more a more quantitative way to compare the different apps. Of course, that doesn't guarantee that the image you actually like is technically the best.

September 13 2010 at 10:12 AM Report abuse rate up rate down Reply
Greg Smith

What keeps me from using the third party HDR apps is that they don't keep EXIF in the photos.

September 13 2010 at 10:08 AM Report abuse rate up rate down Reply
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