What is a "HD Crop"?

Chr1stof

Chr1stof

Messages
1,171
Name
Chris
Edit My Images
Yes
I asked someone on Flickr about the PP on a shot, among other things a "16x9 HD crop" in Apple Aperture was done. Can anyone shed any light on this? What differentiates this from a normal crop?
Sounds more like a video edit to me :)
 
I imagine that they just mean that it's cropped to the same aspect ratio as an HD TV, which is 16:9. The benefit would be that showing photos in this ration on a TV would mean they would not have letter boxing or pillar boxing.
 
Never heard of an "HD crop".
 
I would guess that it's an exact HD pixel dimension crop to 16:9, i.e. to the same number of vertical/horizontal pixels used for HD TV. Which from memory, isn't actually all that many compared to the number captured by a digital camera sensor.

I do this sometimes with stills for creative effect. Although I usually add back the letterbox to bring the image to a 4:3 aspect ration to exagerate the tv look.
 
16:9 is a standard format not exclusive to HD tv's. It's been used as a small format cinema ratio for over 30 years for example. Not sure why they'd use this phrase but it's likely that's what they meant but it's bad terminology! Or maybe they just meant a high res crop?

Who knows but it's certainly not a phrase used regularly among our community!
 
16:9 has been used for widescreen tvs for 15+ years.. but what "hd crop" may specifiy to the user is the exact pixel dimensions rather than just the aspect ratio.. but whether that's 720 or 1080 is then left unclear (but that should be obvious from the image properties on Flickr). It makes more sense than some of the titles I've given to LR presets over the years, most of which woulf have no meaning at all to anyone except me :D
 
Lol same here!
 
Thanks for the replies, what he said he does is a 16x9 HD crop etc in Aerture 3, Topaz de noise and sharpen in P.S
 
Still none the wiser as to what he means by an "HD crop" though!
 
You really out to link to the photopage.. not the static..
 
As other people have said, it's been cropped to a 16:9 aspect ratio image and resized to either 1280x720 pixels or 1920×1080 pixels. Then Flickr has resized it to its own image sizes.
 
Chr1stof said:
Soory for the faux pas :( thanks for the info
Click to expand...

Not really a faux pas, it's just that from the photopage we can access the statics in different sizes and see the exif.. all of which might help to answer your question (might.. depends whether or not the p-p exif was stripped).. and it's also more polite to the Flickr user when the link goes to the photo page ;)
 
Ah, I thought it was a posting pic without a permission type thing!
 
It is nothing more than a way to describe the aspect ratio. Aperture's standard list of aspect ratios includes: "2 x 3 (4 x 6)", "3 x 4", "16 x 9 (HD)", and "Square".

Doesn't imply any particular size in pixels, is purely a way to describe the aspect ratio, in the same way they explicitly describe 2x3 as being the same as 4x6 - presumably helps the mathematically challenged :D

David
 
You must log in or register to reply here.
Back
Top