How many minutes would it take to transmit a 512 512 image with 256 gray levels at 300 baud?

Answer 1

To calculate the time it would take to transmit the image, we first need to determine the total number of bits in the image. With 256 gray levels, we need 8 bits (1 byte) to represent each pixel. So, for a 512x512 image, we have 512 x 512 x 8 = 2,097,152 bits. At a baud rate of 300 baud, this means 300 bits are transmitted per second. Therefore, it would take 2,097,152 bits / 300 bits per second = 6,990.51 seconds to transmit the image. Converting this to minutes, it would take approximately 116.51 minutes.

Answer 2

The total amount of data (including the start and stop bit) in an 8-bit, 1024×

1024 image, is (1024)2×[8+2] bits. The total time required to transmit this image

over a 56K baud link is (512)^2 ×[8+2]/300 =8738.1 sec or about 145.6 min.