57个明亮的HDR照片例子

HDR是High-Dynamic Range的缩写,即高动态范围。那么什么是动态范围?图像的动态范围是指图像的最明亮和最暗部分的比例

什么是HDR
HDR是High-Dynamic Range的缩写,即高动态范围。那么什么是动态范围?图像的动态范围是指图像的最明亮和最暗部分的比例。

生成一个场景的动态范围的能力受两种制约。
第一个限制-成像设备

数码相机所生成的图像一般认为是低动态范围的。如果把噪点和其它限制因素的影响考虑在内的话,大多数相机成像元件的最大动态范围大约为1000:1或更少。

第二个限制-再现媒介  标准计算机屏幕能再现的动态范围大约是100:1。

然而,现实世界场景的动态范围却高多了(自然世界的比例100000:1是常见的)。假定人的眼睛能够适应大约10000:1的动态范围,因此需要比每个颜色频道用8位压缩的图像的有限范围更高动态范围的图像。这被称为HDR图像,常常以32位图像格式存储。

数码摄影中的HDR运用就是用专门的软件把同一场景不同曝光的图像照片合成一张包含高动态范围信息的照片,即所谓 HDR照片。需要图像的数量取决于图像间的曝光级数和动态范围。如果图像含有非常高的动态范围(例如室内景又包含阳光灿烂的室外景),为覆盖整个动态范 围,至少要有两级曝光,这就决定拍摄的数量。
这些照片细节非常丰富,相当于提高了相机(胶片、CCD)的宽容度,有超现实绘画般的效果。

简单来说,HDR图像可以用3句话来概括:
1.亮的地方可以非常亮
2.暗的地方可以非常暗
3.亮暗部的细节都很明显

需要了解更多关于HDR的信息可以点击这里

Talybont Waterfalls – January 2010

Talybont Waterfalls - January 2010

Religious Reflection

Religious Reflection

Sunrise over Spinnaker Bay

Sunrise over Spinnaker Bay

Hauptbahnhof in Lila

Hauptbahnhof in Lila

Museu do Pão

Museu do Pão

Caldera by Old Faithful

Caldera by Old Faithful

Cromane boat

Cromane boat

Dranesville Tavern

Dranesville Tavern

Queensland Rail – Coal Train

Queensland Rail - Coal Train

Fraser Island sunset

Fraser Island sunset

Pont Neuf, Paris, France

Pont Neuf, Paris, France

When Gods Watch

When Gods Watch

Baixo guandu (es) – brazil

baixo guandu (es) - brazil

Sea House

Sea House

Golden Mountain Road

Golden Mountain Road

Virga over Phoenix

Virga over Phoenix

Abandoned House

Abandoned House

Oh Summer

Oh Summer

1 (20)

1 (20)

City Market

City Market

House in Buckingham, Lake County, CA

House in Buckingham, Lake County, CA

E5D2912 1000

E5D2912 1000

Park in Lakeport, CA

Park in Lakeport, CA

Tramonto ad Ostia

Tramonto ad Ostia

Mezzi meccanici

Mezzi meccanici

Cyprus Villa

Cyprus Villa

Fortress of cidadela

Fortress of cidadela

Amsterdamse Poort HDR

Amsterdamse Poort HDR

Twist

Twist

Heart of Satan

Heart of Satan

Looking out over the Thames

Looking out over the Thames

Ultimate Times Square 2

Ultimate Times Square 2

Plaça Catalunya – Barcelona HDR

Plaça Catalunya - Barcelona HDR

Pulau Ubin Sunrise

Pulau Ubin Sunrise

l’albada a Barcelona

l'albada a Barcelona

The Magic of Disney

The Magic of Disney

Brugge – Bruges, Belgium

Brugge - Bruges, Belgium

Time travel in color

time travel in color

Golden Gate HDR

Golden Gate HDR

Audi

audi

Greece is the word

Greece is the word

Taxi Newyork HDR

Taxi Newyork HDR

T & G Building – Mebourne CBD

T and G Building - Mebourne CBD

New York hdr 01

New York hdr 01

Pictures of Heaven

Pictures of Heaven

Chasing Blue Sky HDR

Chasing Blue Sky HDR

Wooden HDR

Wooden HDR

The Child in Us HDR

The Child in Us HDR

I Feel Dark Today HDR

I Feel Dark Today HDR

BMW in hdr

BMW in hdr

Craigdarroch Castle HDR

Craigdarroch Castle HDR

Hdr

hdr

HDR VIII

HDR VIII

Church at Night HDR

Church at Night HDR

Dream for eternity HDR

Dream for eternity HDR

Lost – HDR

Lost - HDR

Tractor HDR

Tractor HDR

原创文章,作者:emilo,如若转载,请注明出处:http://uuhy.com/html/7230.html