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Results

In our experiment, we take three groups of LDR pictures and try to construct three HDR pictures from them. For each group of these pictures, we take 6 LDR pictures with different exposure times. We’ll display the response curve for each color channel: red, blue and green and our final HDR picture.

Group 1

Figure1.
Response Function for Channel Red

Figure2.
Response Function for Channel Green

Figure3.
Response Function for Channel Blue

Figure4.
LDR picture with exposure time 1/50s

Figure6.
LDR picture with exposure time 1/125s

Figure6.
LDR picture with exposure time 1/320s

Figure7.
LDR picture with exposure time 1/800s

Figure8.
LDR picture with exposure time 1/1600s

Figure9.
LDR picture with exposure time 1/4000s

Figure10.
Final HDR picture for Group 1

Comment: It’s impressive to see the details both of the light and of the clothes. For these kind of pictures, it’s always easy to lose the details of the light since the pixel values of the area around the light will get saturated. But, through HDR, we could keep the details of the light without losing any other details.

Group 2

Figure11.
Response function for Channel Blue

Figure12.
Response function for Channel Green

Figure13.
Response function for Channel Red

Figure14.
LDR Picture with exposure time 1/50s

Figure15.
LDR Picture with exposure time 1/100s

Figure16.
LDR Picture with exposure time 1/400s

Figure17.
LDR Picture with exposure time 1/1000s

Figure18.
LDR Picture with exposure time 1/2000s

Figure19.
LDR Picture with exposure time 1/4000s

Figure20.
Final HDR picture for Group 2

Comment: Once again, we almost see the details of the lamb. Although it’s distorted a bit, we know there’s something in it, instead of just completely white for the whole area. What’s amazing is that we could clearly see what’s going on in the background. All the details of the bags are clearly revealed.

Group 3

Figure21.
Response Function for Channel Blue

Figure22.
Response Function for Channel Green

Figure23.
Response Function for Channel Red

Figure24.
LDR Picture with exposure time 1/160s

Figure25.
LDR Picture with exposure time 1/320s

Figure26.
LDR Picture with exposure time 1/640s

Figure27.
LDR Picture with exposure time 1/1250s

Figure28.
Final HDR Picture for Group 3

Comment: Once again, we could see a lot of details both in over-exposed area and in under-exposed area. For example, we could see some words on the white container on the right hand side of the lamb. It’s impossible for us to see those words when we take a picture with relatively large exposure time. Similarly, we could see the details in the dark area. For example, we could see that there’s a purple/blue stuff lying on the black bag. However, it’s likely that we’ll barely see it when the exposure time of the picture is relatively small.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, High dynamic range imaging. OpenStax CNX. Dec 18, 2012 Download for free at http://cnx.org/content/col11471/1.1
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