Virtual Labs

1. Which of the following transformations expands the value of dark pixels while the higher-level values are being compressed?

a) Log transformations

b) Inverse-log transformations

c) Negative transformations

d) None of the mentioned

2. Image compression comprised of

a) encoder

b) decoder

c) frames

d) Both a and b

3. Compression is done for saving

a) storage

b) bandwidth

c) money

d) Both a and b

4. In the formula 1-(1/C), C is the

a) complex ratio

b) compression ratio

c) constant

d) condition

5. Decoder is used for

a) image enhancement

b) image compression

c) image decompression

d) image equalization

Image Compression: (a) Run-Length Encoding (b) Lossless-Huffman Coding (c) Sine and Cosine Transform-Based (d) JPEG