What is Image Resolution

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 • First we will understand the meaning of Resolution.

1) Resolution measures the number of Pixels in a digital image or display.

2) It is defined as width by height 

                          OR

• W * H 

->where W is number of horizontal rows or pixels

->And H is number of vertical columns or pixels.

• As we studied in earlier topic of what is Pixel that pixels are arranged in grid of horizontal and vertical form.

3) Let's take the example of Resolution 

• Image Resolution= 1920 * 1080.

4) You might have seen this resolution in your computer settings too.

5) Example: Image size(resolution)= 1000*750 then what is the total pixels?

• Total pixels = 1000*750

                        = 7,50,000 pixels

• Total memory Bytes= 7,50,000*3

                                       = 22,50,000 Bytes

Which is equivalent to 2.25MB

• Now you might think why we have multipled the total pixels with 3, because as I mentioned in pixel topic that to represent one pixel we require total 3 Bytes of memory allocation.


*You can leave a comment if you have doubt in it.





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