My first HDR image.
Tonight just found this new thing (to me) , suddenly made me interested with it . HDR stand for High Dynamic Range , oh well , if you ask me what the meaning is it , I also don't know.But according to WIKI High dynamic range imagine (HDRI) is a set of techniques that allows a greater dynamic range of exposures (the range of values between light and dark areas) than normal digital imaging techniques.
I took 3 picture with different exposure combination but using same object.As you can see as photos below , the 1st photo was too dark , 2nd quite dark and the 3rd photo look quite okay , but actually this photo overexposed (Too bright) .
"EV" in the statements of photos below stand for "exposure value" . In simple word , larger EV give brighter image.
Oh well , I try to make a "hypothesis" (Not conclusion) with the experiment I made.
As you can see , the product have a average brightness which is same as the brightness when I took the picture . The HDRI is almost like average the brightness if image.
What it use for? MY photo is too suck I can't explain with it.Let use the picture below to explain.
Photograph by PentaxYong , a HDR image.
To make the sky with this brightness , you need a high shutter speed or big aperture (big F value) . Else , the sky (I mean the sun there) will overexpose (Too Bright) . But with high shutter speed or big aperture (big F value) , the image will too dark . You will unable to see the objects on the beach . To make the objects on beach visible , moderate shutter speed or big aperture (small F value) needed . So the photographer took 2 (or more) pictures of this with different EV combine them and made both sky and objects on beach can be seem.
I took 3 picture with different exposure combination but using same object.As you can see as photos below , the 1st photo was too dark , 2nd quite dark and the 3rd photo look quite okay , but actually this photo overexposed (Too bright) .
"EV" in the statements of photos below stand for "exposure value" . In simple word , larger EV give brighter image.
First photo , 1/13 sec , F/4 (EV 0)
Second photo , 1/40 sec , F/4.5 (EV -2)
Third photo , 1/3 sec , F/4 (EV 2)
Product , A HDR image , combined 1st , 2nd & 3rd photo.
Oh well , I try to make a "hypothesis" (Not conclusion) with the experiment I made.
As you can see , the product have a average brightness which is same as the brightness when I took the picture . The HDRI is almost like average the brightness if image.
What it use for? MY photo is too suck I can't explain with it.Let use the picture below to explain.
Photograph by PentaxYong , a HDR image.
To make the sky with this brightness , you need a high shutter speed or big aperture (big F value) . Else , the sky (I mean the sun there) will overexpose (Too Bright) . But with high shutter speed or big aperture (big F value) , the image will too dark . You will unable to see the objects on the beach . To make the objects on beach visible , moderate shutter speed or big aperture (small F value) needed . So the photographer took 2 (or more) pictures of this with different EV combine them and made both sky and objects on beach can be seem.
Comments
Wokay....all the same it's cool XD
Real cool lah the pictures.
The 1st and 3rd picture look nice ah XD
Eh...how much is a human eye mega pixel???