IEEE Transactions on Image Processing, vol. 20, pp. 1885-1894, July 2011. Text of submitted manuscript. IEEE Xplore citation
Software and images are provided so that results can be reproduced by the reader. Updated July 13, 2011.
Metrics download: CMSE, CPSNR, and CIELAB calculators.
Software download: lslcd.zip.
This web page provides the 24 original and demosaicked images corresponding to TABLE II in the paper (plus two additional cases, I and J). Images are provided in TIFF format (uncompressed) and in JPG format (saved with ‘quality’ 90 in MATLAB). Each cell shows the CPSNR (dB) and the S-CIELAB metric. Methods A to J are described below the table.
| No. | Thumb | Original | A | B | C | D | E | F | G | H | I | J |
| 1 | 
|
TIFF | TIFF
38.51 1.108 |
TIFF
34.98 1.248 |
TIFF
38.13 1.156 |
TIFF
38.59 1.105 |
TIFF
39.71 1.009 |
TIFF
38.28 1.198 |
TIFF
38.67 1.133 |
TIFF
39.55 1.052 |
TIFF
37.92 1.190 |
TIFF
38.17 1.193 |
| 2 | 
|
TIFF | TIFF
40.92 0.648 |
TIFF
39.11 0.801 |
TIFF
40.01 0.671 |
TIFF
40.12 0.744 |
TIFF
41.41 0.612 |
TIFF
39.84 0.718 |
TIFF
40.81 0.642 |
TIFF
41.54 0.581 |
TIFF
40.65 0.664 |
TIFF
40.84 0.628 |
| 3 | 
|
TIFF | TIFF
42.73 0.479 |
TIFF
40.91 0.574 |
TIFF
41.65 0.534 |
TIFF
42.67 0.518 |
TIFF
43.21 0.491 |
TIFF
42.10 0.548 |
TIFF
43.37 0.509 |
TIFF
43.22 0.481 |
TIFF
42.22 0.512 |
TIFF
42.76 0.490 |
| 4 | 
|
TIFF | TIFF
41.08 0.671 |
TIFF
38.73 0.851 |
TIFF
40.62 0.688 |
TIFF
40.60 0.757 |
TIFF
42.02 0.623 |
TIFF
40.85 0.706 |
TIFF
41.34 0.644 |
TIFF
42.01 0.610 |
TIFF
41.09 0.666 |
TIFF
41.38 0.639 |
| 5 | 
|
TIFF | TIFF
38.09 1.070 |
TIFF
35.26 1.309 |
TIFF
37.85 1.052 |
TIFF
37.91 1.063 |
TIFF
38.81 0.935 |
TIFF
38.01 1.117 |
TIFF
38.30 1.024 |
TIFF
38.78 0.941 |
TIFF
37.92 1.071 |
TIFF
38.09 1.021 |
| 6 | 
|
TIFF | TIFF
40.25 0.774 |
TIFF
37.36 0.864 |
TIFF
40.03 0.777 |
TIFF
40.06 0.780 |
TIFF
40.10 0.829 |
TIFF
39.84 0.851 |
TIFF
40.42 0.771 |
TIFF
41.01 0.721 |
TIFF
39.95 0.784 |
TIFF
40.04 0.794 |
| 7 | 
|
TIFF | TIFF
42.38 0.574 |
TIFF
40.36 0.686 |
TIFF
42.12 0.537 |
TIFF
42.25 0.614 |
TIFF
43.30 0.513 |
TIFF
42.43 0.577 |
TIFF
42.86 0.526 |
TIFF
43.59 0.468 |
TIFF
42.52 0.556 |
TIFF
42.87 0.533 |
| 8 | 
|
TIFF | TIFF
36.06 1.332 |
TIFF
33.60 1.434 |
TIFF
35.22 1.482 |
TIFF
36.45 1.282 |
TIFF
36.42 1.405 |
TIFF
36.02 1.400 |
TIFF
35.66 1.449 |
TIFF
36.16 1.433 |
TIFF
35.32 1.475 |
TIFF
35.45 1.561 |
| 9 | 
|
TIFF | TIFF
42.84 0.569 |
TIFF
40.71 0.649 |
TIFF
42.06 0.591 |
TIFF
43.12 0.574 |
TIFF
43.09 0.573 |
TIFF
42.07 0.648 |
TIFF
42.85 0.581 |
TIFF
43.05 0.569 |
TIFF
42.57 0.585 |
TIFF
42.61 0.583 |
| 10 | 
|
TIFF | TIFF
42.61 0.544 |
TIFF
40.45 0.620 |
TIFF
42.21 0.549 |
TIFF
42.48 0.575 |
TIFF
42.89 0.536 |
TIFF
42.47 0.601 |
TIFF
42.85 0.541 |
TIFF
43.00 0.532 |
TIFF
42.63 0.547 |
TIFF
42.70 0.543 |
| 11 | 
|
TIFF | TIFF
40.08 0.737 |
TIFF
37.25 0.856 |
TIFF
39.74 0.759 |
TIFF
39.69 0.784 |
TIFF
40.19 0.779 |
TIFF
39.70 0.800 |
TIFF
40.33 0.731 |
TIFF
40.43 0.725 |
TIFF
39.81 0.758 |
TIFF
39.85 0.760 |
| 12 | 
|
TIFF | TIFF
43.51 0.461 |
TIFF
41.53 0.520 |
TIFF
43.05 0.464 |
TIFF
43.43 0.491 |
TIFF
43.67 0.484 |
TIFF
43.19 0.519 |
TIFF
43.46 0.479 |
TIFF
43.72 0.472 |
TIFF
43.14 0.488 |
TIFF
43.23 0.482 |
| 13 | 
|
TIFF | TIFF
34.80 1.560 |
TIFF
31.02 1.943 |
TIFF
35.07 1.583 |
TIFF
34.89 1.588 |
TIFF
35.31 1.531 |
TIFF
34.84 1.625 |
TIFF
34.89 1.573 |
TIFF
36.57 1.421 |
TIFF
34.20 1.629 |
TIFF
34.69 1.804 |
| 14 | 
|
TIFF | TIFF
37.01 0.981 |
TIFF
35.12 1.202 |
TIFF
35.85 1.079 |
TIFF
36.61 1.081 |
TIFF
37.77 0.948 |
TIFF
36.10 1.079 |
TIFF
36.75 0.991 |
TIFF
37.82 0.923 |
TIFF
36.77 1.001 |
TIFF
37.25 0.955 |
| 15 | 
|
TIFF | TIFF
39.87 0.657 |
TIFF
37.57 0.798 |
TIFF
39.67 0.659 |
TIFF
39.83 0.675 |
TIFF
40.92 0.600 |
TIFF
39.89 0.685 |
TIFF
40.03 0.636 |
TIFF
40.67 0.584 |
TIFF
39.83 0.648 |
TIFF
40.06 0.618 |
| 16 | 
|
TIFF | TIFF
43.81 0.531 |
TIFF
41.22 0.587 |
TIFF
43.66 0.531 |
TIFF
43.77 0.551 |
TIFF
43.47 0.582 |
TIFF
43.24 0.593 |
TIFF
44.09 0.526 |
TIFF
44.45 0.497 |
TIFF
43.63 0.537 |
TIFF
43.68 0.530 |
| 17 | 
|
TIFF | TIFF
41.84 0.517 |
TIFF
38.93 0.612 |
TIFF
41.57 0.524 |
TIFF
41.47 0.574 |
TIFF
41.84 0.529 |
TIFF
41.49 0.559 |
TIFF
42.00 0.507 |
TIFF
42.17 0.501 |
TIFF
41.63 0.517 |
TIFF
41.70 0.534 |
| 18 | 
|
TIFF | TIFF
37.47 1.008 |
TIFF
34.39 1.290 |
TIFF
37.44 1.022 |
TIFF
37.21 1.064 |
TIFF
37.88 0.957 |
TIFF
37.47 1.033 |
TIFF
37.80 0.965 |
TIFF
37.89 0.983 |
TIFF
37.28 0.997 |
TIFF
37.34 1.023 |
| 19 | 
|
TIFF | TIFF
40.90 0.752 |
TIFF
38.18 0.874 |
TIFF
40.35 0.790 |
TIFF
41.02 0.757 |
TIFF
41.04 0.755 |
TIFF
40.01 0.844 |
TIFF
40.87 0.755 |
TIFF
41.04 0.735 |
TIFF
40.53 0.771 |
TIFF
40.56 0.771 |
| 20 | 
|
TIFF | TIFF
41.27 0.545 |
TIFF
38.88 0.642 |
TIFF
40.39 0.601 |
TIFF
41.29 0.557 |
TIFF
41.51 0.564 |
TIFF
41.00 0.594 |
TIFF
41.25 0.567 |
TIFF
41.44 0.524 |
TIFF
40.97 0.578 |
TIFF
41.05 0.542 |
| 21 | 
|
TIFF | TIFF
39.16 0.901 |
TIFF
36.32 1.030 |
TIFF
38.74 0.935 |
TIFF
39.30 0.901 |
TIFF
39.62 0.884 |
TIFF
39.22 0.940 |
TIFF
39.28 0.892 |
TIFF
39.65 0.868 |
TIFF
38.79 0.917 |
TIFF
38.91 0.931 |
| 22 | 
|
TIFF | TIFF
38.44 0.964 |
TIFF
36.17 1.215 |
TIFF
38.09 0.940 |
TIFF
38.20 1.028 |
TIFF
38.73 0.911 |
TIFF
38.29 0.972 |
TIFF
38.67 0.908 |
TIFF
38.86 0.884 |
TIFF
38.57 0.930 |
TIFF
38.61 0.914 |
| 23 | 
|
TIFF | TIFF
43.28 0.495 |
TIFF
41.46 0.614 |
TIFF
42.12 0.506 |
TIFF
42.77 0.566 |
TIFF
43.83 0.467 |
TIFF
42.35 0.536 |
TIFF
43.15 0.479 |
TIFF
44.25 0.440 |
TIFF
42.98 0.497 |
TIFF
43.67 0.461 |
| 24 | 
|
TIFF | TIFF
35.53 1.018 |
TIFF
32.47 1.312 |
TIFF
35.39 1.012 |
TIFF
35.23 1.057 |
TIFF
35.72 1.011 |
TIFF
35.57 1.055 |
TIFF
35.60 0.969 |
TIFF
35.75 0.990 |
TIFF
35.34 0.989 |
TIFF
35.37 1.043 |
Method A: LMMSE (L. Zhang and X. Wu, “Color demosaicking via directional linear minimum mean square-error estimation,” IEEE Trans. Image Process., vol. 14, no. 12, pp. 2167–2177, Dec. 2005.)
Method B: AHD (K. Hirakawa and T. W. Parks, “Adaptive homogeneity-directed demosaicing algorithm,” IEEE Trans. Image Process., vol. 14, no. 3, pp. 360–369, Mar. 2005.)
Method C: FDM (E. Dubois, “Frequency-domain methods for demosaicking of Bayersampled color image,” IEEE Signal Process. Lett., vol. 12, pp. 847–850, Dec. 2005.)
Method D: VCD (K. H. Chung and Y. H. Chan, “Color demosaicing using variance of color differences,” IEEE Trans. Image Process., vol. 15, no. 10, pp. 2944–2955, Oct. 2006.)
Method E: K-SVD (J. Mairal, M. Elad, and G. Sapiro, “Sparse representation for color image restoration,” IEEE Trans. Image Process., vol. 17, no. 1, pp. 53–69, Jan. 2008.)
Method F: RAD (D. Menon and G. Calvagno, “Regularization approaches to demosaicking,” IEEE Trans. Image Process., vol. 18, no. 10, pp. 2209–2220, Oct. 2009.)
Method G: LSLCD with TO filter (configuration [11 11 11 11 11 11], obtained by training on other 23 images)
Method H: LSLCD with ST filter (configuration [11 11 11 11 11 11], obtained by self-training on the given image)
Method I: LSLCD with RE filter (configuration [5 5 9 3 11 1], obtained by training on other 23 images)
Method J: LSLCD with RE filter (configuration [5 5 9 3 11 1], obtained by self-training on the given image)
