HDR or Not?

(Note: Click on all images to enlarge.)

It is condemnatory that the hefty investment of my camera gear has not turned into a wise one due to severe practice shortage. Deterred by wintry blizzard earlier of the year, I am now excuse-less since the summer has been blistering hot. Encouraged also by my imminent travel to Egypt, I dusted my camera and headed to Greenwich Park earlier this week with a purpose – to shoot bracketed photos for HDR, or high dynamic range images.

HDR image is a photographic technique where three or more images taken under different exposure settings are combined to form a single picture, in a scene where the contrast is starkly different for it to be properly exposed by the camera.

However, as I was editing post-processing my photographs taken under a mildly disappointing and thus less dramatic weather, I couldn’t help but began to wonder, how much control do we have to perfecting our images before they become, erm, unrealistic?

Royal Naval College, 0EV Royal Naval College, -2EV Royal Naval College, +2EV

The first of the three photos above was the ‘correctly’ exposed photo as interpreted by the camera. It is evident that the foreground (the building) in this photo was underexposed and the background (the cloudy sky) was washed-out. In order to preserve both the dramatic sky and the details of the building, a HDR solution has to be summoned.

So by combining the normally exposed photo, with one severely underexposed (for details in the sky) and another extremely overexposed (for the details in the building) photos, the following HDR image is produced and is compared to its original image on the left.

Royal Naval College, 0EV Royal Naval College, HDR

It is undoubted that the HDR image was processed compulsively. Nevertheless, very few people will deny that such an image is actually very pleasing to the eyes and even when they do, they are often amazed by the details preserved in a picture using HDR technique. However, here comes the question: When it comes to photography, are we striving to capture a photo that could genuinely represent a real scene even when the end result is slightly disappointing, or are we trying to gimmick-ly processed photos and so the details are retained?

Challenging question. But what if we tone down the processing method and produce a closer-to-life image that is capable of preserving details? (Take a look on the following photos.) Now we notice that the sky is less dramatic but the clouds are clearly distinguishable from each other as opposed to the original image. The details of the building has also become sharper. The overall tone of the image is warmer and thus eliminated the hazy feeling of the original image due to perhaps incorrect white balance setting.

Royal Naval College, 0EVRoyal Naval College, Light HDR

Now another question: If presented only the lightly HDR image, will you suspect it is processed? And if given the last couple of images, which one would you have preferred in general?

I understand and share the same perspective as many of you, photos are best left untouched. But what if HDR image, if realistically processed – if that ever exists – could significantly enhanced the details of an image and bring it closer-to-life, which is highly impossible to be captured using a camera solely? Take a look on the following example, could you tell it is processed?

NOR06 0003


5 comments:

Sid said...
This comment has been removed by the author.
Sid said...

A very relevant post for many people and actually quite philosophical. I feel it ultimately boils down to two different issues.

First - there is the photographer's need to represent in his picture what his eye sees. Our eyes will perceive the details of the building as well as the details of the sky...but without the stark contrast that the HDR image offers - an inherent dilemma introduced in ths very basic step of eye-to-photograph.

Second - The photographer's need to express what not just his eye but his mind sees (perspective, in other words). In that case - the photograph is not meant to 'represent reality' but rather to highlight certain aspects of the scene - I would call it a photographer's way of painting. Like in the picture of the boat...or in an HDR image, where certain colours are highlighted.

Not sure if I've said anything meaningful there, though it is long-winded!

Of the pictures you've shown - the second with a 'softer HDR' would seem better, but I somehow prefer the first one coz I feel that is more...honest!

Excellent work - Im looking forward to your Egypt trip! :)

Cheers,

Sid

Jiann Chyuan said...

Yes, it is certainly the incapability of cameras, even how advanced they have become, to preserve details in highly contrast scenes. But you would rather prefer honesty than beauty? I highly doubt if any of the award winning pictures is actually honest.

But I am actually surprised that you thought the boat picture is surreal. I actually thought it is quite realistic. I haven't had the opportunity to shoot photos in such lighting condition, but I strongly believe it is achievable.

Anyway, I am planning a visit to the Lake District, near the Derwent Water in September, just in time for autumn. Would you be interested to participate?

Sid said...

Lake District! Sounds very very tempting but I'll have no idea how free I'll be in Sept until I actually get to Soton...

When I said "I prefer the first pic coz its more honest" I meant the first HDR - it is obviously HDR and therefore more honest than an HDR image masquerading as a normal one.

Jiann Chyuan said...

Oh! Haha! But I didn't want HDR image. Erm, I mean I've no intention to make my photos look completely surreal. I just want them to look, err, normal. Not even sure what I am talking about here. :-P

Come on Sid, the Lake District in autumn, reddish leaves, mirror lake, golden sunrise, purplish sunset, what could get better than that, huh?