Posted: Wed Apr 10, 2013 3:30 pm
Hi EPurdueEPurdue wrote:No that's not how pixel counts work. A higher pixel count means the image is higher quality.
It's like if you make a sculpture out of .5 inch Lego blocks, it will look different than if you used blocks half that size. The sculpture is the same size.
Apple's site has some side by side examples showing this.
Apple have a higher resolution tablet (for example) than others on the market. However if you put two of them side by side you would not know this necessarily by their size. This is what I was trying to demonstrate. For example if you browse a website on a tablet device of the same dimensions, one of which is retina display and one which is not, you will find that text is sharp on the retina display, but images may be very blurry compared to the non-retina display image.
This is because fonts are vectors (not pixel based) and so can scale with ease. However images cannot, and as the retina display requires twice as many pixels per square centimeter (for example), images will be forced to stretch to attain a certain dimension.
My point was that it can be confusing to gel both of these two concepts sometimes when working with retina display devices. So although you have twice as many pixels this doesn't necessarily imply it is twice as easy to see the content on the screen. So it can be sometimes a bit illusory to just examine the pixel count.
EDIT
Basically what I mean is that if you require something to be fairly large, and an image, you will need it to be twice as large (in pixels) for retina as you would for other devices. The effect of packing more pixels in is that sharpness is improved, but this effectively means that something 100 pixels high will look half as high in retina display as in other devices. So although pixel counts are important, they can be illusory in terms of what exactly they are conveying to a user.
As an example imagine I fill the area the size of my thumbnail with thousands of pixels - the area you have to view what I have put there will still only be the size of my thumbnail, so at first glance saying my 'device' is 4000px x 3000px sounds a lot, it's still only the size of my thumbnail.