Breaking News
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
Steam Kid
User Rank
Re: Huh?
Steam Kid   4/29/2014 1:28:02 PM
I'm am not a image processing expert, but my take on the resolution question is that if you double both horizontal and vertical components you end up with an image which can be quarter the size to fill 1 pixel e.g. a satellite picture able to see a 4 square metre table i.e. 2 metre by 2 metre, would then be able to see a 1 square metre table i.e. 1 metre by 1 metre or in other words an improvement in resolution of a factor of 4.

User Rank
zeeglen   4/29/2014 9:47:51 AM
Samsung says the GS5 "snaps photos with twice the resolution of the iPhone." That is correct -- the GS5 features a 16-megapixel camera, while the iPhone 5s has an 8-megapixel camera.

Maybe I am missing something obvious here, but I would think that double the pixel count in a 2D image would result in 1.414 times the resolution.  To get a true 'twice the resolution' would include both horizontal and vertical dimensions, requiring four times the pixel count.

I am no image processing expert, so if I'm in error here please throw some enlightenment my way.


<<   <   Page 2 / 2

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Vetinari Clock: Decisions, Decisions, Decisions …
Max Maxfield
Things are bouncing merrily along with regard to my uber-cool Vetinari Clock project. The wooden cabinet is being handcrafted by my chum Bob (a master carpenter) using an amazing ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...