iPad High Resolution Test Images

I bought a high resolution iPad

by Michael Sinz

The prospect of a real 2048 x 1536 resolution display was just
too much for me and I bought an iPad (and one for my wife too).
But, after having ordered it, I wondered what types of tests that I
could put together to test the iPad display when it came in. After
all, I really do want to be sure that the display is of some level of
quality.

So, I put together some optimized 2048 x 1536 resolution images
that I could load on the iPad to check out the display. These images
are full resolution but are rather small, thanks to the wonders of
run-length encoding. After all, they are very regular in design.

I put them on my web server such that I could try out the iPad
directly but it turns out that the web browser resamples the image
and you don’t get the full resolution. However, if you ask Safari
to save the images into the camera roll, you get the full resolution
image and they do what I want.

So, what is it that I wanted to use these images for? Well, first,
they are fully saturated Red, Green, Blue, Red-Green, Red-Blue,
Green-Blue, Red-Green-Blue, and full-off. But not only that, there
are variations of these where alternating lines are black and where
alternating lines are full-on white. (Obviously the black-black
and white-white version does not actually exist)

There are two reasons for the alternating lines:

• Such a high resolution display should make those look like a
  solid color that is a mix of the two.
• Such a pattern will make pixel flaws really show up.

Using the images

• First, you must download the images and save them to the iPad
  as Safari does not display them in full resolution. Plus you
  want to see them in full screen.
• The images are all designed for landscape viewing. This also
  happens to provide the best test. Do not assume that they can
  used in other resolutions or aspect rations. They are all for
  2048 x 1536 resolution displays.
• View the images – they should all look like a solid color. The
  striped images may be able to be seen as stripes if you have
  very good eyes and/or you have a quality magnifying glass.
• On the striped images, you should also view them with the iPad
  rotated 180 degrees. This gets the “other” alternating lines
  in the display. The image should look the same in both
  orientations.
• And pixel flaws will show up in one or more of the images but
  may not show up in all of them. This is why there are as
  many images as shown.

The Images

To download, view this pages on your iPad and tap and hold on
each of the images and select the “Save Image” option.
The images are each under 2K in size (yes, just 2K or less or
under 40k for the whole set of 22 images.)

 
___-Solid
___-Stripes-W
R__-Stripes-B
R__-Solid
R__-Stripes-W
RG_-Stripes-B
RG_-Solid
RG_-Stripes-W
_G_-Stripes-B
_G_-Solid
_G_-Stripes-W
_GB-Stripes-B
_GB-Solid
_GB-Stripes-W
__B-Stripes-B
__B-Solid
__B-Stripes-W
R_B-Stripes-B
R_B-Solid
R_B-Stripes-W
RGB-Stripes-B
RGB-Solid