Bit =0 or 1 = it is hte smallest memory storage unit in a computer

Byte = 8 bits grouped together ---> 256 possibilities (2^8 means 2 to the power of 8)= values from 0 to 255

Thus, if we have N bits per pixel ==> there are 2^N or 2 to the Nth power possible values

Types of Images: bits/pixel

Greyscale Image= 8 bits/pixel = 0 - 255 levels

Full colorimage = 24 bits/pixel = 16.7 million colors

• 8 bits/ pixel Red: 256 : 0-255
• 8 bits/ pixel Green : 256: 0- 255
• 8 bits/ pixel Blue : 256 : 0- 255
  

Serial Transmission of an Image

baud rate = bits per second that can be transfered

Time to transfer (in seconds) = [(#of pixels)*(bits per pixel)]/ baud rate