Understand The Image Resolution!

by Fairul Hafifi

Post image for Understand The Image Resolution!

What is pixel?

Pixels are the building blocks of each digital image. Clearly outlined squares of light and color data are stacked up next to one another both horizontally and vertically. Each picture element (pixel for short) has a dark to light value from 0 (solid black} to 255 (pure white). That is, there are 256 defined value. A gradient is the gradual transition from one value to another in sequence. At the heart of any convincing photographic rendering is a smooth, seamless and stunning gradation.

What is image resolution ?

Resolution refers to the quantity of pixels in a picture. Resolution is sometimes identified by the width and height of the image furthermore the overall variety of pixels in the image. For example, an image that is 2048 pixels wide and 1536 pixels high (2048X1536) contains (multiply) 3,145,728 pixels (or 3.1 Megapixels).  You may decision it a 2048X1536 or a 3.1 Megapixel image.  As the megapixels in the pickup device in your camera increase so will the potential maximum size image you’ll be able to turn out.  This means that a 5 megapixel camera is capable of capturing a larger image than a 3 megapixel camera.
How does image resolution play out on pc monitor?

The computer screen you’re wanting at right currently is set at a explicit resolution also.  The larger the screen, the larger you possible have your screen resolution set.  If you have got a 17″ monitor, likely you have got it set at 800X600 pixels.  If you have got a 19″ screen it is probably set at 1024X768.  You’ll change the settings but these are optimum for those screen sizes.

Now, if your monitor is set to 800X600 and you open up an image that’s 640X480, it will only extra service a part of your screen.   If you open up a picture that is 2048X1536 (3.1 megapixels) then you may notice yourself moving the slider bar around to determine all the different elements of the image.  It simply won’t fit.  Add to that the fact that the PC monitor has a finite number of pixels per inch out there (like 72) so if you’re going to show your image on a monitor only, you would want to drop the standard right down to 72 to save file house.  If you’re going to put your image on a webpage or email it to an admirer then you may wish to 1st build it a useful size.  Not too big, not too tiny.  Maybe 200-300 pixels high would be a nice size.  You can also scale back the size of the file (not necessarily the size of the image) thus it hundreds faster.  You reduce the file size by compressing the image (see the subsequent question).

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{ 3 comments… read them below or add one }

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