There are digital images, film images etc. We can say resolution is the detail an image holds. The higher the resolution more will be the image details.
Image resolution can be
measured in various ways. Resolution counts how close the lines can be to each
other and while still visible. Resolution units can be according to its size.
Eg; lines per mm, lines per inch etc. To the overall size of a picture. Line pairs are often used instead of lines, A
line pair comprises a dark line and an adjacent light line. Both dark and light lines are counted. A
resolution of 10 lines per mm comprises 5 dark lines and 5 light lines. Eg: Photographic lens and film resolution.
PIXEL RESOLUTION
Resolution is the sensors capability to observe or measure the smallest
object clearly with distinct boundaries. While pixel is the smallest unit of the
digital image ; the resolution depends on the size of the pixel. At any given lens setting the smaller the
picture the higher the resolution will be and clearer will be the picture. Images having smaller pixel sizes might be consists
of more pixels. The amount of
information within the image depends on the quantity of pixels present.
For graphic monitors the screen
resolution of the graphic monitors can be explained as the number of dots
(pixels) on the entire screen. A 640 X 480 pixel screen is capable of
displaying 640 distinct dots on each of 480 lines or about 80300,000
pixels. This interpreted in to different
dpi measurements depending on the size of the screen. For example 15 “ VGA
monitor (640x480) displays about 50 dots per inch. With the time the resolution
of the screens or printer lowers with the enhancement of technology.
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