高階ict-u06-d02
The size in bytes of an uncompressed bitmap is approximately:
A. width x height x colour depth in bits, divided by 8✓ 答案
B. width + height
C. colour depth on its own
D. width x height divided by 8, ignoring colour depth
解說
Each pixel stores colour depth in bits, so total bits = width x height x depth, and dividing by 8 converts bits to bytes. Forgetting the colour depth or the division by 8 is the usual error.