Slide 32
Slide 32 text
Image Compression with Haar Filters
Encoding
• 4. The quantized 4 × 4 matrix is converted to a 1 × 16 vector by
arranging the values in the zigzag order (to help getting a high
run-length of zeros).
• The approximation coefficients are followed by the H, V, and D
detail coefficients.
{48, 55, 56, 63, −5, 0, 0, 0, −1, −1, −1, 0, −1, 1, 0, 0}
NHSM - 4th year: Digital Image Processing - Compression (Week 6) - M. Hachama (hachamam@gmail.com) 11/14