Simple question: pixels vs file size

Why would a 2510 by 1960 image take 14.1MB in its uncompressed mode?
What's the math?

 

****************
The math is:
2510 x 1960 x bit depth (8) x number of channels (3) / 8192 = Kilobytes
Divide that by 1000 for MB.

--sanders
e-mail?Please erase theboard

 

2510 x 1960 = 4919600 pixels.
One pixel is 3 bytes if the image is 8 bits per pixel, so
4919600 pixels = 14758800 bytes = 14.0751 MB.

 

What's 8192?

 

To be precise: There are 8,192 bits in a kilobyte, not 8,000
--sanders
e-mail?Please erase theboard

 

Oops. Read "if the image is 8 bits per COLOR", not per pixel.

 

I always thought there were 1024 bits in a kilobyte.

 

1024 bits in kilobit
bit=1/8Byte
so 1kilobyte=1024x8bits

--Aki Ahonen

 

Hi

That is correct.

This is incorrect. You must divide by 1024 for Mbytes.

Carlos

 

Hi

1 byte = 8 bits
1 Kbyte = 1024 bytes = 8 x 1024 bits = 8192 bits.

Carlos

 

You're right - I should know better.