Resolution
Resolution
measures the number of pixels in a digital image or display. It is defined as
the width or W x H by height, where W is the number of horizontal pixels and H
is the number of vertical pixels. For example, the resolution of HDTV is 1920 x
1080.
Image Resolution
2320 pixels high 3088 pixels wide
digital photo resolution is 3088 x 2320. Multiplying this number together gives
a total of 7164160 pixels. The photo has only seven million pixels, it is
considered a "7-megapixel" image. Digital camera resolution is often
measured in megapixels, which is another way to express image resolution.
"Resolution" is often used synonymously with
"size" when describing the dimensions of a digital image. However,
the word "shape" can be a bit ambiguous, as the size of the image may
or may not be the same. Therefore, it is better to use "resolution"
when describing the dimensions of a digital image.
Display Resolution
Each monitor and screen has a
specific resolution. As mentioned above, the resolution of the HD display is
1920 x 1080 pixels. The 4K display has twice the resolution of HD or 3840 x
2160 pixels. It's called "4K" because the screen is about 4,000 pixels
across horizontally. The total number of pixels in the 4K display is 8,294,400
or just over eight megapixels.
The monitor resolution defines how
many pixels the screen can display, but does not describe how thin the image
is. For example, the 27 "iMac 5K display has a resolution of 5120 x 2880,
while the older 27" Apple Thunderbolt display has a resolution of 2560 x
1440. The 27 "IMAC Thunderbolt is the same physical size as the display
but twice the resolution, it has a pixel density of two inches, measured in
pixels per inch, or in ppi.
NOTE:
Unlike monitor resolution, the resolution of a printer or scanner is more
consistent with the pixel density than the total pixels. Printer and scanner
resolution is measured in dots per inch or dpi.
The display resolution or display
mode of digital television, computer monitor, or display device is a number of
different pixels in each dimension. This can be an ambiguous term, especially
since the display resolution is controlled by different components through a
cathode ray tube (CRT) display, a flat-panel display (with a liquid-crystal
display) and a projection display using a fixed picture-element (pixel) array.
It is usually quoted with units in
pixels as width × height: for example, 1024 × 768 means width is 1024 pixels
and height is 768 pixels. This example is commonly called "ten twenty-four
by seven sixty-five" or "ten twenty-four by seven six eight".
Display resolution A term used to
refer to fixed-pixel-array displays such as plasma display panels (PDPs),
liquid-crystal displays (LCDs), digital light processing (DLP) projectors, OLED
displays, and similar technologies. The actual number of columns and rows of
these pixels (E.g. 1920 × 1080). The
result of having a fixed-grid display is that, for multi-format video input,
all displays require a "scaling engine" (a digital video processor
that includes a memory array) to match the display of the incoming picture.
Phones, tablets, monitors, and televisions
For device
displays such as phones, tablets, monitors, and televisions, it is incorrect to
use the term display resolution as described above. The term display resolution
is commonly used for the pixel dimension, that is, the maximum number of pixels
in each dimension.
(E.g. 1920 × 1080), on which the
image does not say anything about the pixel density of the display actually
created: resolution correctly refers to the density of pixels, the number of
pixels per unit distance, or a number of areas, not the total number of pixels. In
digital measurement, the display resolution will be given in pixels per inch
(ppi). In analog measurements, if the screen is 10 inches high, the horizontal
resolution is measured in squares 10 inches wide.
For television standards, this is
commonly referred to as "height per picture, line horizontal resolution";
For example, analog NTSC TVs can typically display approximately 340 lines of
"height per picture" through an over-the-dist air source, which is
equivalent to about 440 total lines of actual picture information from left to
right edge.
Some commentators also use the
display to show a range of input formats. Which includes formats larger than the
original grid size of the screen, even though the display's input will accept
electronics and is often down-scaled to match the screen's parameters. (E.g.
1920 accepting native 1366 × 1080 input on display with 768-pixel array). In
the case of television inputs, many manufacturers take the input and increase
it by 5% to "overscan" it by reducing the zoom so that the input
resolution is not required to be displayed.
See image resolution and optical
resolution. One factor is the rectangular shape of the display screen, which is
expressed in proportion to the height of the physical picture and the width of
the physical picture. This is known as the aspect ratio. The physical aspect
ratio of the screen and the pixel ratio of individual pixels cannot be the
same. The 12: × 720 arrays on the 16: 9 display have square pixels, but the 16: 9 display has 1024 × 768 array pixels.
Pixel size "Resolution" or
Sharpness Impressive Example For example: use higher resolution More clear
information "more clear" or "sharp". However, the latest
screen technology is sure; Reducing the resolution on such screens will greatly
reduce the sharpness, as the interpolation process is used to "fix"
the non-native resolution input in the display's native resolution output.
Some
CRT-based displays may use digital video processing. Which involves scaling the
image using a memory array, ultimately the same effect between spot size and
focus, display angles in a CRT-type display due to different parameters. Color
displays include phosphor pitch shadow masks (such as Trinitron) and video
bandwidth.
What are the different resolutions for monitors?
All manufacturers today produce widescreen or
ultrawide monitors. Examples of their different solutions are shown in the
tables below.
Common widescreen resolution
Monitor
size |
Resolution |
19-inch |
1680
x 1050 |
21-inch |
1920
x 1080 |
23-inch |
1920
x 1080 to 2560 x 1440 |
27-inch |
2560
x 1440 to 3840 x 2160 |
Common ultra-wide resolution
Monitor
size |
Resolution |
25-inch |
2560
x 1080 |
29-inch |
2560
x 1080 |
34-inch |
2560
x 1080 to 3440 x 1440 |
Resolution is a term used to
describe a set of steps or processes used to correct a problem with a product.
4K, 8K, DPI, Fix, PPI, Video terms,
Maximum resolution, Workaround, Measurement, etc.