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how to generate LDC mesh table

Taylar Huang
Prodigy 200 points
Other Parts Discussed in Thread: TDA4VM, TDA4VH-Q1

Dear TI experts,

I follow "[FAQ] TDA4VM: How to create a LDC mesh LUT for fisheye distortion correction on TDA4?" to generate mesh table. While setting s=2; m=4, it has some many NaN in mesh table.

May I know how to decide suitable value for s and m?

  • 0
    Prodigy 200 points

    2112.mesh.txt

    7737.spec_file.txt 
    0	0.000 		
0.1	0.005 		
0.2	0.010 		
0.3	0.015 		
0.4	0.020 		
0.5	0.025 		
0.6	0.030 		
0.7	0.036 		
0.8	0.041 		
0.9	0.046 		
1	0.051 		
1.1	0.056 		
1.2	0.061 		
1.3	0.066 		
1.4	0.071 		
1.5	0.076 		
1.6	0.081 		
1.7	0.086 		
1.8	0.091 		
1.9	0.097 		
2	0.102 		
2.1	0.107 		
2.2	0.112 		
2.3	0.117 		
2.4	0.122 		
2.5	0.127 		
2.6	0.132 		
2.7	0.137 		
2.8	0.142 		
2.9	0.147 		
3	0.152 		
3.1	0.157 		
3.2	0.163 		
3.3	0.168 		
3.4	0.173 		
3.5	0.178 		
3.6	0.183 		
3.7	0.188 		
3.8	0.193 		
3.9	0.198 		
4	0.203 		
4.1	0.208 		
4.2	0.213 		
4.3	0.218 		
4.4	0.223 		
4.5	0.229 		
4.6	0.234 		
4.7	0.239 		
4.8	0.244 		
4.9	0.249 		
5	0.254 		
5.1	0.259 		
5.2	0.264 		
5.3	0.269 		
5.4	0.274 		
5.5	0.279 		
5.6	0.284 		
5.7	0.289 		
5.8	0.295 		
5.9	0.300 		
6	0.305 		
6.1	0.310 		
6.2	0.315 		
6.3	0.320 		
6.4	0.325 		
6.5	0.330 		
6.6	0.335 		
6.7	0.340 		
6.8	0.345 		
6.9	0.350 		
7	0.355 		
7.1	0.360 		
7.2	0.366 		
7.3	0.371 		
7.4	0.376 		
7.5	0.381 		
7.6	0.386 		
7.7	0.391 		
7.8	0.396 		
7.9	0.401 		
8	0.406 		
8.1	0.411 		
8.2	0.416 		
8.3	0.421 		
8.4	0.426 		
8.5	0.431 		
8.6	0.436 		
8.7	0.442 		
8.8	0.447 		
8.9	0.452 		
9	0.457 		
9.1	0.462 		
9.2	0.467 		
9.3	0.472 		
9.4	0.477 		
9.5	0.482 		
9.6	0.487 		
9.7	0.492 		
9.8	0.497 		
9.9	0.502 		
10	0.507 		
10.1	0.512 		
10.2	0.517 		
10.3	0.522 		
10.4	0.528 		
10.5	0.533 		
10.6	0.538 		
10.7	0.543 		
10.8	0.548 		
10.9	0.553 		
11	0.558 		
11.1	0.563 		
11.2	0.568 		
11.3	0.573 		
11.4	0.578 		
11.5	0.583 		
11.6	0.588 		
11.7	0.593 		
11.8	0.598 		
11.9	0.603 		
12	0.608 		
12.1	0.613 		
12.2	0.618 		
12.3	0.624 		
12.4	0.629 		
12.5	0.634 		
12.6	0.639 		
12.7	0.644 		
12.8	0.649 		
12.9	0.654 		
13	0.659 		
13.1	0.664 		
13.2	0.669 		
13.3	0.674 		
13.4	0.679 		
13.5	0.684 		
13.6	0.689 		
13.7	0.694 		
13.8	0.699 		
13.9	0.704 		
14	0.709 		
14.1	0.714 		
14.2	0.719 		
14.3	0.724 		
14.4	0.729 		
14.5	0.734 		
14.6	0.739 		
14.7	0.744 		
14.8	0.749 		
14.9	0.754 		
15	0.760 		
15.1	0.765 		
15.2	0.770 		
15.3	0.775 		
15.4	0.780 		
15.5	0.785 		
15.6	0.790 		
15.7	0.795 		
15.8	0.800 		
15.9	0.805 		
16	0.810 		
16.1	0.815 		
16.2	0.820 		
16.3	0.825 		
16.4	0.830 		
16.5	0.835 		
16.6	0.840 		
16.7	0.845 		
16.8	0.850 		
16.9	0.855 		
17	0.860 		
17.1	0.865 		
17.2	0.870 		
17.3	0.875 		
17.4	0.880 		
17.5	0.885 		
17.6	0.890 		
17.7	0.895 		
17.8	0.900 		
17.9	0.905 		
18	0.910 		
18.1	0.915 		
18.2	0.920 		
18.3	0.925 		
18.4	0.930 		
18.5	0.935 		
18.6	0.940 		
18.7	0.945 		
18.8	0.950 		
18.9	0.955 		
19	0.960 		
19.1	0.965 		
19.2	0.970 		
19.3	0.975 		
19.4	0.980 		
19.5	0.985 		
19.6	0.990 		
19.7	0.995 		
19.8	1.000 		
19.9	1.005 		
20	1.010 		
20.1	1.015 		
20.2	1.020 		
20.3	1.025 		
20.4	1.030 		
20.5	1.035 		
20.6	1.040 		
20.7	1.045 		
20.8	1.050 		
20.9	1.055 		
21	1.060 		
21.1	1.065 		
21.2	1.070 		
21.3	1.075 		
21.4	1.080 		
21.5	1.085 		
21.6	1.090 		
21.7	1.094 		
21.8	1.099 		
21.9	1.104 		
22	1.109 		
22.1	1.114 		
22.2	1.119 		
22.3	1.124 		
22.4	1.129 		
22.5	1.134 		
22.6	1.139 		
22.7	1.144 		
22.8	1.149 		
22.9	1.154 		
23	1.159 		
23.1	1.164 		
23.2	1.169 		
23.3	1.174 		
23.4	1.179 		
23.5	1.184 		
23.6	1.189 		
23.7	1.194 		
23.8	1.199 		
23.9	1.204 		
24	1.208 		
24.1	1.213 		
24.2	1.218 		
24.3	1.223 		
24.4	1.228 		
24.5	1.233 		
24.6	1.238 		
24.7	1.243 		
24.8	1.248 		
24.9	1.253 		
25	1.258 		
25.1	1.263 		
25.2	1.268 		
25.3	1.273 		
25.4	1.277 		
25.5	1.282 		
25.6	1.287 		
25.7	1.292 		
25.8	1.297 		
25.9	1.302 		
26	1.307 		
26.1	1.312 		
26.2	1.317 		
26.3	1.322 		
26.4	1.327 		
26.5	1.332 		
26.6	1.336 		
26.7	1.341 		
26.8	1.346 		
26.9	1.351 		
27	1.356 		
27.1	1.361 		
27.2	1.366 		
27.3	1.371 		
27.4	1.376 		
27.5	1.381 		
27.6	1.385 		
27.7	1.390 		
27.8	1.395 		
27.9	1.400 		
28	1.405 		
28.1	1.410 		
28.2	1.415 		
28.3	1.420 		
28.4	1.425 		
28.5	1.429 		
28.6	1.434 		
28.7	1.439 		
28.8	1.444 		
28.9	1.449 		
29	1.454 		
29.1	1.459 		
29.2	1.464 		
29.3	1.468 		
29.4	1.473 		
29.5	1.478 		
29.6	1.483 		
29.7	1.488 		
29.8	1.493 		
29.9	1.498 		
30	1.503 		
30.1	1.507 		
30.2	1.512 		
30.3	1.517 		
30.4	1.522 		
30.5	1.527 		
30.6	1.532 		
30.7	1.537 		
30.8	1.541 		
30.9	1.546 		
31	1.551 		
31.1	1.556 		
31.2	1.561 		
31.3	1.566 		
31.4	1.570 		
31.5	1.575 		
31.6	1.580 		
31.7	1.585 		
31.8	1.590 		
31.9	1.595 		
32	1.599 		
32.1	1.604 		
32.2	1.609 		
32.3	1.614 		
32.4	1.619 		
32.5	1.624 		
32.6	1.628 		
32.7	1.633 		
32.8	1.638 		
32.9	1.643 		
33	1.648 		
33.1	1.652 		
33.2	1.657 		
33.3	1.662 		
33.4	1.667 		
33.5	1.672 		
33.6	1.676 		
33.7	1.681 		
33.8	1.686 		
33.9	1.691 		
34	1.696 		
34.1	1.700 		
34.2	1.705 		
34.3	1.710 		
34.4	1.715 		
34.5	1.720 		
34.6	1.724 		
34.7	1.729 		
34.8	1.734 		
34.9	1.739 		
35	1.743 		
35.1	1.748 		
35.2	1.753 		
35.3	1.758 		
35.4	1.763 		
35.5	1.767 		
35.6	1.772 		
35.7	1.777 		
35.8	1.782 		
35.9	1.786 		
36	1.791 		
36.1	1.796 		
36.2	1.801 		
36.3	1.805 		
36.4	1.810 		
36.5	1.815 		
36.6	1.820 		
36.7	1.824 		
36.8	1.829 		
36.9	1.834 		
37	1.839 		
37.1	1.843 		
37.2	1.848 		
37.3	1.853 		
37.4	1.858 		
37.5	1.862 		
37.6	1.867 		
37.7	1.872 		
37.8	1.876 		
37.9	1.881 		
38	1.886 		
38.1	1.891 		
38.2	1.895 		
38.3	1.900 		
38.4	1.905 		
38.5	1.909 		
38.6	1.914 		
38.7	1.919 		
38.8	1.924 		
38.9	1.928 		
39	1.933 		
39.1	1.938 		
39.2	1.942 		
39.3	1.947 		
39.4	1.952 		
39.5	1.956 		
39.6	1.961 		
39.7	1.966 		
39.8	1.971 		
39.9	1.975 		
40	1.980 		
40.1	1.985 		
40.2	1.989 		
40.3	1.994 		
40.4	1.999 		
40.5	2.003 		
40.6	2.008 		
40.7	2.013 		
40.8	2.017 		
40.9	2.022 		
41	2.027 		
41.1	2.031 		
41.2	2.036 		
41.3	2.041 		
41.4	2.045 		
41.5	2.050 		
41.6	2.055 		
41.7	2.059 		
41.8	2.064 		
41.9	2.068 		
42	2.073 		
42.1	2.078 		
42.2	2.082 		
42.3	2.087 		
42.4	2.092 		
42.5	2.096 		
42.6	2.101 		
42.7	2.106 		
42.8	2.110 		
42.9	2.115 		
43	2.119 		
43.1	2.124 		
43.2	2.129 		
43.3	2.133 		
43.4	2.138 		
43.5	2.142 		
43.6	2.147 		
43.7	2.152 		
43.8	2.156 		
43.9	2.161 		
44	2.165 		
44.1	2.170 		
44.2	2.175 		
44.3	2.179 		
44.4	2.184 		
44.5	2.188 		
44.6	2.193 		
44.7	2.198 		
44.8	2.202 		
44.9	2.207 		
45	2.211 		
45.1	2.216 		
45.2	2.220 		
45.3	2.225 		
45.4	2.230 		
45.5	2.234 		
45.6	2.239 		
45.7	2.243 		
45.8	2.248 		
45.9	2.252 		
46	2.257 		
46.1	2.261 		
46.2	2.266 		
46.3	2.271 		
46.4	2.275 		
46.5	2.280 		
46.6	2.284 		
46.7	2.289 		
46.8	2.293 		
46.9	2.298 		
47	2.302 		
47.1	2.307 		
47.2	2.311 		
47.3	2.316 		
47.4	2.320 		
47.5	2.325 		
47.6	2.329 		
47.7	2.334 		
47.8	2.338 		
47.9	2.343 		
48	2.347 		
48.1	2.352 		
48.2	2.356 		
48.3	2.361 		
48.4	2.365 		
48.5	2.370 		
48.6	2.374 		
48.7	2.379 		
48.8	2.383 		
48.9	2.388 		
49	2.392 		
49.1	2.397 		
49.2	2.401 		
49.3	2.406 		
49.4	2.410 		
49.5	2.415 		
49.6	2.419 		
49.7	2.424 		
49.8	2.428 		
49.9	2.432 		
50	2.437 		
50.1	2.441 		
50.2	2.446 		
50.3	2.450 		
50.4	2.455 		
50.5	2.459 		
50.6	2.464 		
50.7	2.468 		
50.8	2.472 		
50.9	2.477 		
51	2.481 		
51.1	2.486 		
51.2	2.490 		
51.3	2.495 		
51.4	2.499 		
51.5	2.503 		
51.6	2.508 		
51.7	2.512 		
51.8	2.517 		
51.9	2.521 		
52	2.525 		
52.1	2.530 		
52.2	2.534 		
52.3	2.539 		
52.4	2.543 		
52.5	2.547 		
52.6	2.552 		
52.7	2.556 		
52.8	2.560 		
52.9	2.565 		
53	2.569 		
53.1	2.574 		
53.2	2.578 		
53.3	2.582 		
53.4	2.587 		
53.5	2.591 		
53.6	2.595 		
53.7	2.600 		
53.8	2.604 		
53.9	2.608 		
54	2.613 		
54.1	2.617 		
54.2	2.621 		
54.3	2.626 		
54.4	2.630 		
54.5	2.634 		
54.6	2.639 		
54.7	2.643 		
54.8	2.647 		
54.9	2.652 		
55	2.656 		
55.1	2.660 		
55.2	2.664 		
55.3	2.669 		
55.4	2.673 		
55.5	2.677 		
55.6	2.682 		
55.7	2.686 		
55.8	2.690 		
55.9	2.694 		
56	2.699 		
56.1	2.703 		
56.2	2.707 		
56.3	2.711 		
56.4	2.716 		
56.5	2.720 		
56.6	2.724 		
56.7	2.728 		
56.8	2.733 		
56.9	2.737 		
57	2.741 		
57.1	2.745 		
57.2	2.750 		
57.3	2.754 		
57.4	2.758 		
57.5	2.762 		
57.6	2.766 		
57.7	2.771 		
57.8	2.775 		
57.9	2.779 		
58	2.783 		
58.1	2.787 		
58.2	2.792 		
58.3	2.796 		
58.4	2.800 		
58.5	2.804 		
58.6	2.808 		
58.7	2.813 		
58.8	2.817 		
58.9	2.821 		
59	2.825 		
59.1	2.829 		
59.2	2.833 		
59.3	2.838 		
59.4	2.842 		
59.5	2.846 		
59.6	2.850 		
59.7	2.854 		
59.8	2.858 		
59.9	2.862 		
60	2.866 		
60.1	2.871 		
60.2	2.875 		
60.3	2.879 		
60.4	2.883 		
60.5	2.887 		
60.6	2.891 		
60.7	2.895 		
60.8	2.899 		
60.9	2.903 		
61	2.907 		
61.1	2.911 		
61.2	2.916 		
61.3	2.920 		
61.4	2.924 		
61.5	2.928 		
61.6	2.932 		
61.7	2.936 		
61.8	2.940 		
61.9	2.944 		
62	2.948 		
62.1	2.952 		
62.2	2.956 		
62.3	2.960 		
62.4	2.964 		
62.5	2.968 		
62.6	2.972 		
62.7	2.976 		
62.8	2.980 		
62.9	2.984 		
63	2.988 		
63.1	2.992 		
63.2	2.996 		
63.3	3.000 		
63.4	3.004 		
63.5	3.008 		
63.6	3.012 		
63.7	3.016 		
63.8	3.020 		
63.9	3.024 		
64	3.028 		
64.1	3.032 		
64.2	3.035 		
64.3	3.039 		
64.4	3.043 		
64.5	3.047 		
64.6	3.051 		
64.7	3.055 		
64.8	3.059 		
64.9	3.063 		
65	3.067 		
65.1	3.071 		
65.2	3.074 		
65.3	3.078 		
65.4	3.082 		
65.5	3.086 		
65.6	3.090 		
65.7	3.094 		
65.8	3.098 		
65.9	3.101 		
66	3.105 		
66.1	3.109 		
66.2	3.113 		
66.3	3.117 		
66.4	3.120 		
66.5	3.124 		
66.6	3.128 		
66.7	3.132 		
66.8	3.136 		
66.9	3.139 		
67	3.143 		
67.1	3.147 		
67.2	3.151 		
67.3	3.154 		
67.4	3.158 		
67.5	3.162 		
67.6	3.166 		
67.7	3.169 		
67.8	3.173 		
67.9	3.177 		
68	3.181 		
68.1	3.184 		
68.2	3.188 		
68.3	3.192 		
68.4	3.195 		
68.5	3.199 		
68.6	3.203 		
68.7	3.206 		
68.8	3.210 		
68.9	3.214 		
69	3.217 		
69.1	3.221 		
69.2	3.225 		
69.3	3.228 		
69.4	3.232 		
69.5	3.235 		
69.6	3.239 		
69.7	3.243 		
69.8	3.246 		
69.9	3.250 		
70	3.253 		
70.1	3.257 		
70.2	3.261 		
70.3	3.264 		
70.4	3.268 		
70.5	3.271 		
70.6	3.275 		
70.7	3.278 		
70.8	3.282 		
70.9	3.285 		
71	3.289 		
71.1	3.292 		
71.2	3.296 		
71.3	3.299 		
71.4	3.303 		
71.5	3.306 		
71.6	3.310 		
71.7	3.313 		
71.8	3.317 		
71.9	3.320 		
72	3.324 		
72.1	3.327 		
72.2	3.330 		
72.3	3.334 		
72.4	3.337 		
72.5	3.341 		
72.6	3.344 		
72.7	3.347 		
72.8	3.351 		
72.9	3.354 		
73	3.357 		
73.1	3.361 		
73.2	3.364 		
73.3	3.367 		
73.4	3.371 		
73.5	3.374 		
73.6	3.377 		
73.7	3.381 		
73.8	3.384 		
73.9	3.387 		
74	3.391 		
74.1	3.394 		
74.2	3.397 		
74.3	3.400 		
74.4	3.404 		
74.5	3.407 		
74.6	3.410 		
74.7	3.413 		
74.8	3.417 		
74.9	3.420 		
75	3.423 		
75.1	3.426 		
75.2	3.429 		
75.3	3.433 		
75.4	3.436 		
75.5	3.439 		
75.6	3.442

  • 0 in reply to Taylar Huang
    Prodigy 200 points

    Dear TI experts,

    I upload spec_file.txt and mesh.txt that I use and generate. Could you help to check if there is anything wrong?

    Thanks

  • 0 in reply to Taylar Huang
    TI__Mastermind 49885 points

    Most likely, it goes out of your input range of 75.6 degrees.

    You may add one more line at the end as below and try again.

    "180  3.442" or "90 3.442"

  • 0 in reply to Gang Hua
    Prodigy 200 points

    8741.mesh.txt

    Hi Gang Hua,

    After adding 90 3.442 at the end of spec_file.txt, we can get mesh.txt as attachment. Coud you help to check if it is reasonable?

    Thank you

  • 0 in reply to Taylar Huang
    TI__Mastermind 49885 points

    I don't find any NaN in the new file.

  • 0 in reply to Gang Hua
    Prodigy 200 points

    Yes, there is no NaN this time. But I don't know if the result is reasonable. Could you help to check it?

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Dear TI

    I used cam_single.sh to capture two image

    img_msc_0000_1904x1072.YUV and img_viss_0000_1934x1096.YUV

    I have converted distortion table "spec_file.txt" to mesh.txt and my setting is W = 1904; H = 1072

    I used mesh.txt to convert mesh_lut.h ./convert.sh mesh.txt 1904 1072 16
    I used DCC tool to open the preview image "DCCOutPut.png"
    Seems the picture is wrong, I saw some error message
    Input Image DDR BW = 12124992, MESH LUT DDR BW = 433088, Total = 12558080
    output_image.yuv created in C:\work\Project\MD\TestProject\.plugoutdir\DC_Mesh_LDC2
    Input Image DDR BW = 12124992, MESH LUT DDR BW = 433088, Total = 12558080
    LDC error flags:
    bit0 = 1: out of input image frame bound or mesh frame bound (warning only: clipped back)
    bit1 = 0: out of pixel block bound (PIXPAD is too small; warning only: clipped back)
    bit2 = 0: internal pixel buffer overflow (input image block is too big)
    bit3 = 0: internal mesh buffer overflow (mesh down sampling is too small)
    bit4 = 0: affine/pwarp internal overflow
    bit5 = 0: out of mesh block bound (warning only: clipped back)

    Request to get YUV image from Target : Enter IP Address...

    Loaded communication DLL:itCommun.dll

    Request to get YUV image from Target : Enter IP Address...

    Loaded communication DLL:itCommun.dll


    Do I set any wrong?

    img_msc_0000_1904x1072.rar 6557.mesh.txt

    7356.spec_file.txt 
    0	0.000 
0.1	0.005 
0.2	0.010 
0.3	0.015 
0.4	0.020 
0.5	0.025 
0.6	0.030 
0.7	0.036 
0.8	0.041 
0.9	0.046 
1	0.051 
1.1	0.056 
1.2	0.061 
1.3	0.066 
1.4	0.071 
1.5	0.076 
1.6	0.081 
1.7	0.086 
1.8	0.091 
1.9	0.097 
2	0.102 
2.1	0.107 
2.2	0.112 
2.3	0.117 
2.4	0.122 
2.5	0.127 
2.6	0.132 
2.7	0.137 
2.8	0.142 
2.9	0.147 
3	0.152 
3.1	0.157 
3.2	0.163 
3.3	0.168 
3.4	0.173 
3.5	0.178 
3.6	0.183 
3.7	0.188 
3.8	0.193 
3.9	0.198 
4	0.203 
4.1	0.208 
4.2	0.213 
4.3	0.218 
4.4	0.223 
4.5	0.229 
4.6	0.234 
4.7	0.239 
4.8	0.244 
4.9	0.249 
5	0.254 
5.1	0.259 
5.2	0.264 
5.3	0.269 
5.4	0.274 
5.5	0.279 
5.6	0.284 
5.7	0.289 
5.8	0.295 
5.9	0.300 
6	0.305 
6.1	0.310 
6.2	0.315 
6.3	0.320 
6.4	0.325 
6.5	0.330 
6.6	0.335 
6.7	0.340 
6.8	0.345 
6.9	0.350 
7	0.355 
7.1	0.360 
7.2	0.366 
7.3	0.371 
7.4	0.376 
7.5	0.381 
7.6	0.386 
7.7	0.391 
7.8	0.396 
7.9	0.401 
8	0.406 
8.1	0.411 
8.2	0.416 
8.3	0.421 
8.4	0.426 
8.5	0.431 
8.6	0.436 
8.7	0.442 
8.8	0.447 
8.9	0.452 
9	0.457 
9.1	0.462 
9.2	0.467 
9.3	0.472 
9.4	0.477 
9.5	0.482 
9.6	0.487 
9.7	0.492 
9.8	0.497 
9.9	0.502 
10	0.507 
10.1 0.512 
10.2 0.517 
10.3 0.522 
10.4 0.528 
10.5 0.533 
10.6 0.538 
10.7 0.543 
10.8 0.548 
10.9 0.553 
11	 0.558 
11.1 0.563 
11.2 0.568 
11.3 0.573 
11.4 0.578 
11.5 0.583 
11.6 0.588 
11.7 0.593 
11.8 0.598 
11.9 0.603 
12	 0.608 
12.1 0.613 
12.2 0.618 
12.3 0.624 
12.4 0.629 
12.5 0.634 
12.6 0.639 
12.7 0.644 
12.8 0.649 
12.9 0.654 
13	 0.659 
13.1 0.664 
13.2 0.669 
13.3 0.674 
13.4 0.679 
13.5 0.684 
13.6 0.689 
13.7 0.694 
13.8 0.699 
13.9 0.704 
14	 0.709 
14.1 0.714 
14.2 0.719 
14.3 0.724 
14.4 0.729 
14.5 0.734 
14.6 0.739 
14.7 0.744 
14.8 0.749 
14.9 0.754 
15	 0.760 
15.1 0.765 
15.2 0.770 
15.3 0.775 
15.4 0.780 
15.5 0.785 
15.6 0.790 
15.7 0.795 
15.8 0.800 
15.9 0.805 
16	 0.810 
16.1 0.815 
16.2 0.820 
16.3 0.825 
16.4 0.830 
16.5 0.835 
16.6 0.840 
16.7 0.845 
16.8 0.850 
16.9 0.855 
17	 0.860 
17.1 0.865 
17.2 0.870 
17.3 0.875 
17.4 0.880 
17.5 0.885 
17.6 0.890 
17.7 0.895 
17.8 0.900 
17.9 0.905 
18	 0.910 
18.1 0.915 
18.2 0.920 
18.3 0.925 
18.4 0.930 
18.5 0.935 
18.6 0.940 
18.7 0.945 
18.8 0.950 
18.9 0.955 
19	 0.960 
19.1 0.965 
19.2 0.970 
19.3 0.975 
19.4 0.980 
19.5 0.985 
19.6 0.990 
19.7 0.995 
19.8 1.000 
19.9 1.005 
20	 1.010 
20.1 1.015 
20.2 1.020 
20.3 1.025 
20.4 1.030 
20.5 1.035 
20.6 1.040 
20.7 1.045 
20.8 1.050 
20.9 1.055 
21	 1.060 
21.1 1.065 
21.2 1.070 
21.3 1.075 
21.4 1.080 
21.5 1.085 
21.6 1.090 
21.7 1.094 
21.8 1.099 
21.9 1.104 
22	 1.109 
22.1 1.114 
22.2 1.119 
22.3 1.124 
22.4 1.129 
22.5 1.134 
22.6 1.139 
22.7 1.144 
22.8 1.149 
22.9 1.154 
23	 1.159 
23.1 1.164 
23.2 1.169 
23.3 1.174 
23.4 1.179 
23.5 1.184 
23.6 1.189 
23.7 1.194 
23.8 1.199 
23.9 1.204 
24	 1.208 
24.1 1.213 
24.2 1.218 
24.3 1.223 
24.4 1.228 
24.5 1.233 
24.6 1.238 
24.7 1.243 
24.8 1.248 
24.9 1.253 
25	 1.258 
25.1 1.263 
25.2 1.268 
25.3 1.273 
25.4 1.277 
25.5 1.282 
25.6 1.287 
25.7 1.292 
25.8 1.297 
25.9 1.302 
26	 1.307 
26.1 1.312 
26.2 1.317 
26.3 1.322 
26.4 1.327 
26.5 1.332 
26.6 1.336 
26.7 1.341 
26.8 1.346 
26.9 1.351 
27	 1.356 
27.1 1.361 
27.2 1.366 
27.3 1.371 
27.4 1.376 
27.5 1.381 
27.6 1.385 
27.7 1.390 
27.8 1.395 
27.9 1.400 
28	 1.405 
28.1 1.410 
28.2 1.415 
28.3 1.420 
28.4 1.425 
28.5 1.429 
28.6 1.434 
28.7 1.439 
28.8 1.444 
28.9 1.449 
29	 1.454 
29.1 1.459 
29.2 1.464 
29.3 1.468 
29.4 1.473 
29.5 1.478 
29.6 1.483 
29.7 1.488 
29.8 1.493 
29.9 1.498 
30	 1.503 
30.1 1.507 
30.2 1.512 
30.3 1.517 
30.4 1.522 
30.5 1.527 
30.6 1.532 
30.7 1.537 
30.8 1.541 
30.9 1.546 
31	 1.551 
31.1 1.556 
31.2 1.561 
31.3 1.566 
31.4 1.570 
31.5 1.575 
31.6 1.580 
31.7 1.585 
31.8 1.590 
31.9 1.595 
32	 1.599 
32.1 1.604 
32.2 1.609 
32.3 1.614 
32.4 1.619 
32.5 1.624 
32.6 1.628 
32.7 1.633 
32.8 1.638 
32.9 1.643 
33	 1.648 
33.1 1.652 
33.2 1.657 
33.3 1.662 
33.4 1.667 
33.5 1.672 
33.6 1.676 
33.7 1.681 
33.8 1.686 
33.9 1.691 
34	 1.696 
34.1 1.700 
34.2 1.705 
34.3 1.710 
34.4 1.715 
34.5 1.720 
34.6 1.724 
34.7 1.729 
34.8 1.734 
34.9 1.739 
35	 1.743 
35.1 1.748 
35.2 1.753 
35.3 1.758 
35.4 1.763 
35.5 1.767 
35.6 1.772 
35.7 1.777 
35.8 1.782 
35.9 1.786 
36	 1.791 
36.1 1.796 
36.2 1.801 
36.3 1.805 
36.4 1.810 
36.5 1.815 
36.6 1.820 
36.7 1.824 
36.8 1.829 
36.9 1.834 
37	 1.839 
37.1 1.843 
37.2 1.848 
37.3 1.853 
37.4 1.858 
37.5 1.862 
37.6 1.867 
37.7 1.872 
37.8 1.876 
37.9 1.881 
38	 1.886 
38.1 1.891 
38.2 1.895 
38.3 1.900 
38.4 1.905 
38.5 1.909 
38.6 1.914 
38.7 1.919 
38.8 1.924 
38.9 1.928 
39	 1.933 
39.1 1.938 
39.2 1.942 
39.3 1.947 
39.4 1.952 
39.5 1.956 
39.6 1.961 
39.7 1.966 
39.8 1.971 
39.9 1.975 
40	 1.980 
40.1 1.985 
40.2 1.989 
40.3 1.994 
40.4 1.999 
40.5 2.003 
40.6 2.008 
40.7 2.013 
40.8 2.017 
40.9 2.022 
41	 2.027 
41.1 2.031 
41.2 2.036 
41.3 2.041 
41.4 2.045 
41.5 2.050 
41.6 2.055 
41.7 2.059 
41.8 2.064 
41.9 2.068 
42	 2.073 
42.1 2.078 
42.2 2.082 
42.3 2.087 
42.4 2.092 
42.5 2.096 
42.6 2.101 
42.7 2.106 
42.8 2.110 
42.9 2.115 
43	 2.119 
43.1 2.124 
43.2 2.129 
43.3 2.133 
43.4 2.138 
43.5 2.142 
43.6 2.147 
43.7 2.152 
43.8 2.156 
43.9 2.161 
44	 2.165 
44.1 2.170 
44.2 2.175 
44.3 2.179 
44.4 2.184 
44.5 2.188 
44.6 2.193 
44.7 2.198 
44.8 2.202 
44.9 2.207 
45	 2.211 
45.1 2.216 
45.2 2.220 
45.3 2.225 
45.4 2.230 
45.5 2.234 
45.6 2.239 
45.7 2.243 
45.8 2.248 
45.9 2.252 
46	 2.257 
46.1 2.261 
46.2 2.266 
46.3 2.271 
46.4 2.275 
46.5 2.280 
46.6 2.284 
46.7 2.289 
46.8 2.293 
46.9 2.298 
47	 2.302 
47.1 2.307 
47.2 2.311 
47.3 2.316 
47.4 2.320 
47.5 2.325 
47.6 2.329 
47.7 2.334 
47.8 2.338 
47.9 2.343 
48	 2.347 
48.1 2.352 
48.2 2.356 
48.3 2.361 
48.4 2.365 
48.5 2.370 
48.6 2.374 
48.7 2.379 
48.8 2.383 
48.9 2.388 
49	 2.392 
49.1 2.397 
49.2 2.401 
49.3 2.406 
49.4 2.410 
49.5 2.415 
49.6 2.419 
49.7 2.424 
49.8 2.428 
49.9 2.432 
50	 2.437 
50.1 2.441 
50.2 2.446 
50.3 2.450 
50.4 2.455 
50.5 2.459 
50.6 2.464 
50.7 2.468 
50.8 2.472 
50.9 2.477 
51	 2.481 
51.1 2.486 
51.2 2.490 
51.3 2.495 
51.4 2.499 
51.5 2.503 
51.6 2.508 
51.7 2.512 
51.8 2.517 
51.9 2.521 
52	 2.525 
52.1 2.530 
52.2 2.534 
52.3 2.539 
52.4 2.543 
52.5 2.547 
52.6 2.552 
52.7 2.556 
52.8 2.560 
52.9 2.565 
53	 2.569 
53.1 2.574 
53.2 2.578 
53.3 2.582 
53.4 2.587 
53.5 2.591 
53.6 2.595 
53.7 2.600 
53.8 2.604 
53.9 2.608 
54	 2.613 
54.1 2.617 
54.2 2.621 
54.3 2.626 
54.4 2.630 
54.5 2.634 
54.6 2.639 
54.7 2.643 
54.8 2.647 
54.9 2.652 
55	 2.656 
55.1 2.660 
55.2 2.664 
55.3 2.669 
55.4 2.673 
55.5 2.677 
55.6 2.682 
55.7 2.686 
55.8 2.690 
55.9 2.694 
56	 2.699 
56.1 2.703 
56.2 2.707 
56.3 2.711 
56.4 2.716 
56.5 2.720 
56.6 2.724 
56.7 2.728 
56.8 2.733 
56.9 2.737 
57	 2.741 
57.1 2.745 
57.2 2.750 
57.3 2.754 
57.4 2.758 
57.5 2.762 
57.6 2.766 
57.7 2.771 
57.8 2.775 
57.9 2.779 
58	 2.783 
58.1 2.787 
58.2 2.792 
58.3 2.796 
58.4 2.800 
58.5 2.804 
58.6 2.808 
58.7 2.813 
58.8 2.817 
58.9 2.821 
59	 2.825 
59.1 2.829 
59.2 2.833 
59.3 2.838 
59.4 2.842 
59.5 2.846 
59.6 2.850 
59.7 2.854 
59.8 2.858 
59.9 2.862 
60	 2.866 
60.1 2.871 
60.2 2.875 
60.3 2.879 
60.4 2.883 
60.5 2.887 
60.6 2.891 
60.7 2.895 
60.8 2.899 
60.9 2.903 
61	 2.907 
61.1 2.911 
61.2 2.916 
61.3 2.920 
61.4 2.924 
61.5 2.928 
61.6 2.932 
61.7 2.936 
61.8 2.940 
61.9 2.944 
62	 2.948 
62.1 2.952 
62.2 2.956 
62.3 2.960 
62.4 2.964 
62.5 2.968 
62.6 2.972 
62.7 2.976 
62.8 2.980 
62.9 2.984 
63	 2.988 
63.1 2.992 
63.2 2.996 
63.3 3.000 
63.4 3.004 
63.5 3.008 
63.6 3.012 
63.7 3.016 
63.8 3.020 
63.9 3.024 
64	 3.028 
64.1 3.032 
64.2 3.035 
64.3 3.039 
64.4 3.043 
64.5 3.047 
64.6 3.051 
64.7 3.055 
64.8 3.059 
64.9 3.063 
65	 3.067 
65.1 3.071 
65.2 3.074 
65.3 3.078 
65.4 3.082 
65.5 3.086 
65.6 3.090 
65.7 3.094 
65.8 3.098 
65.9 3.101 
66	 3.105 
66.1 3.109 
66.2 3.113 
66.3 3.117 
66.4 3.120 
66.5 3.124 
66.6 3.128 
66.7 3.132 
66.8 3.136 
66.9 3.139 
67	 3.143 
67.1 3.147 
67.2 3.151 
67.3 3.154 
67.4 3.158 
67.5 3.162 
67.6 3.166 
67.7 3.169 
67.8 3.173 
67.9 3.177 
68	 3.181 
68.1 3.184 
68.2 3.188 
68.3 3.192 
68.4 3.195 
68.5 3.199 
68.6 3.203 
68.7 3.206 
68.8 3.210 
68.9 3.214 
69	 3.217 
69.1 3.221 
69.2 3.225 
69.3 3.228 
69.4 3.232 
69.5 3.235 
69.6 3.239 
69.7 3.243 
69.8 3.246 
69.9 3.250 
70	 3.253 
70.1 3.257 
70.2 3.261 
70.3 3.264 
70.4 3.268 
70.5 3.271 
70.6 3.275 
70.7 3.278 
70.8 3.282 
70.9 3.285 
71	 3.289 
71.1 3.292 
71.2 3.296 
71.3 3.299 
71.4 3.303 
71.5 3.306 
71.6 3.310 
71.7 3.313 
71.8 3.317 
71.9 3.320 
72	 3.324 
72.1 3.327 
72.2 3.330 
72.3 3.334 
72.4 3.337 
72.5 3.341 
72.6 3.344 
72.7 3.347 
72.8 3.351 
72.9 3.354 
73	 3.357 
73.1 3.361 
73.2 3.364 
73.3 3.367 
73.4 3.371 
73.5 3.374 
73.6 3.377 
73.7 3.381 
73.8 3.384 
73.9 3.387 
74	 3.391 
74.1 3.394 
74.2 3.397 
74.3 3.400 
74.4 3.404 
74.5 3.407 
74.6 3.410 
74.7 3.413 
74.8 3.417 
74.9 3.420 
75	 3.423 
75.1 3.426 
75.2 3.429 
75.3 3.433 
75.4 3.436 
75.5 3.439 
75.6 3.442 
75.7 3.445 
75.8 3.448 
75.9 3.451 
76	 3.455 
76.1 3.458 
76.2 3.461 
76.3 3.464 
76.4 3.467 
76.5 3.470 
76.6 3.473 
76.7 3.476 
76.8 3.479 
76.9 3.482 
77	 3.485 
77.1 3.488 
77.2 3.491 
77.3 3.494 
77.4 3.497 
77.5 3.500 
77.6 3.503 
77.7 3.506 
77.8 3.509 
77.9 3.512 
78	 3.515 
78.1 3.518 
78.2 3.521 
78.3 3.524 
78.4 3.527 
78.5 3.530 
78.6 3.532 
78.7 3.535 
78.8 3.538 
78.9 3.541 
79	 3.544 
79.1 3.547 
79.2 3.550 
79.3 3.552 
79.4 3.555 
79.5 3.558 
79.6 3.561 
79.7 3.564 
79.8 3.566 
79.9 3.569 
80	 3.572 
80.1 3.575 
80.2 3.577 
80.3 3.580 
80.4 3.583 
80.5 3.585 
80.6 3.588 
80.7 3.591 
80.8 3.593 
80.9 3.596 
81	 3.599 
81.1 3.601 
81.2 3.604 
81.3 3.607 
81.4 3.609 
81.5 3.612 
81.6 3.614 
81.7 3.617 
81.8 3.620 
81.9 3.622 
82	 3.625 
82.1 3.627 
82.2 3.630 
82.3 3.632 
82.4 3.635 
82.5 3.637 
82.6 3.640 
82.7 3.642 
82.8 3.645 
82.9 3.647 
83	 3.650 
83.1 3.652 
83.2 3.655 
83.3 3.657 
83.4 3.659 
83.5 3.662 
83.6 3.664 
83.7 3.666 
83.8 3.669 
83.9 3.671 
84	 3.674 
84.1 3.676 
84.2 3.678 
84.3 3.680 
84.4 3.683 
84.5 3.685 
84.6 3.687 
84.7 3.690 
84.8 3.692 
84.9 3.694 
85	 3.696 
85.1 3.699 
85.2 3.701 
85.3 3.703 
85.4 3.705 
85.5 3.707 
85.6 3.709 
85.7 3.712 
85.8 3.714 
85.9 3.716 
86	 3.718 
86.1 3.720 
86.2 3.722 
86.3 3.724 
86.4 3.726 
86.5 3.728 
86.6 3.730 
86.7 3.733 
86.8 3.735 
86.9 3.737 
87	 3.739 
87.1 3.741 
87.2 3.743 
87.3 3.745 
87.4 3.746 
87.5 3.748 
87.6 3.750 
87.7 3.752 
87.8 3.754 
87.9 3.756 
88	 3.758 
88.1 3.760 
88.2 3.762 
88.3 3.764 
88.4 3.765 
88.5 3.767 
88.6 3.769 
88.7 3.771 
88.8 3.773 
88.9 3.774 
89	 3.776 
89.1 3.778 
89.2 3.780 
89.3 3.781 
89.4 3.783 
89.5 3.785 
89.6 3.787 
89.7 3.788 
89.8 3.790 
89.9 3.792 
90	 3.793

  • 0 in reply to Will Kang
    Prodigy 125 points

    Dear TI

    I modified output frame x, y to 1280x720

    and output starting x coodinate = 300 and y = 140

    seems OK but the top area have some dislocation, can you give me suggestion to modify it?

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points
    Will Kang said:

    Do I set any wrong?

    Not really wrong, but your output view goes out of your input view by too much.

    You may use smaller "s" values for smaller output view and try again.

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points
    Will Kang said:

    seems OK but the top area have some dislocation, can you give me suggestion to modify it?

    Same problem as above

    You output view on the top is going out of your input image boundary.
    LDC H/W repeats input image border pixels when it is getting out of boundary.
    You will need to plan your output view properly according to your lens distortion geometry.

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Hi Gang

    OK, I will try smaller "s" values

    How could I build the new bin to camera module

    I copy xml to imaging\sensor_drv\src\imx390 and run the "generate_dcc.sh"

    Then, It generated some new bin, but i don't know how to use it.

    I built imaging and sdk and copy .out to sdk, but It still not work

    Thanks

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points

    If you are using PSDK RTOS, you may have to do below to copy everything to SD card.

    make linux_fs_install_sd

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Dear Gang

    Could you give me more detail.

    I have downloaded pre-build RTOS and source code RTOS

    I copied pre-build RTOS and It's workful.

    Now, I modified imaging\sensor_drv\src\imx390 in source code RTOS and run the "generate_dcc.sh" and got new bin

    Could I just copied bin to sdcard? If yes, where is the path?

    Or what is the procedure I need to do?

    I made vision_app, sdk, and imaging, then copied all .out to sdcard, but nothing changed.

    Or I don't need to make anything, just after modifying then make linux_fs_install_sd?

    Thanks

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Hi Gang

    We are successful to modify parameters.

    But I have some questions.

    1. I used vision_app script single_cam to take picture, then I only can get img_msc_0000_1904x1072.YUV and img_viss_0000_1934x1096.YUV

    But the imx390 config defines IMX390_1920x1080 to preview

    2. I used img_msc_0000_1904x1072.YUV to do LDC, DCC simulation is OK, but I push to SD card that the preview is not right, so I need to use 1920x1080 to preduce parameters

    How could I take 1920x1080 YUV or RAW?

    I need it to simulate LDC on DCC tool

    Thanks

     

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points

    Hi Will,

    I am not sure about these questions.

    IMX390 sensor output raw image and VISS output YUV should be both 1936x1096 if you have not changed the IMX390 sensor driver.

    LDC output in PSDK is configured to 1920x1080 in the single-cam app.

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Hi Gang

    I understand IMX390 sensor output raw image and VISS output YUV should be both 1936x1096

    And LDC output in PSDK is configured to 1920x1080

    But I need to re-correction LDC, because the LDC is wrong now 

    So, I need to take 1920x1080 YUV, then I can use DCC tool to re-gen LDC table like this  "ldc_xml_IMX390_1920x1080_2.txt"

    If I use YUV 1936x1096 to gen 1920x1080 LDC table on DCC tool, the DCC output is wrong

    Thanks

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points

    I am confused about your LDC input and output image size on TDA4.

    For tuning tool, you can specify your input image size, output image size, and LUT image frame size separately.
    Please follow plugin guide for the details.

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Hi Gang

    Let me explain my problem

    First of all, there is a sample code in TDA4VH-Q1 source code

    imaging\sensor_drv\src\imx390\dcc_xmls\wdr\ldc_xml_IMX390_1920x1080_3.txt

    I took a YUV image img_viss_0000_1934x1096 to simulate LDC parameter  

    I set input image size 1934x1096, and output image size 1280x720, then the DCC preview like that. 

    But If i put the parameter code to code base, modify IMX390_ldc.xml and ldc_xml_IMX390_1934x1096_1.txt

    The real preview is like this

    So the real resolution is not fitting 1934x1096.

    Then I ignored the input size 1934x1096, I used sample resolution 1920x1080 to simulate LDC, now the DCC preview is wrong but output parameter is right for code base.

    So, I suspect that I only can use 1920x1080 to simulate. So, I need to take 1920x1080 YUV, but I don't know how to take it

    Thanks

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points
    Will Kang said:

    First of all, there is a sample code in TDA4VH-Q1 source code

    Do you use "app_single_cam" under "vision_apps"?

    The sensor output RAW and VISS output YUV should be both 1936x1096.
    I am not sure why you have 1934 instead.

    When I press "s" key at "app_single_cam", it saves the raw and yuv images with the size below.

    RAW file name .//img_0000.raw
YUV file name .//img_viss_0000.yuv
imgaddr_width = 1936
imgaddr_height = 1096
imgaddr_stride = 1936
width = 1936
height = 1096


YUV file name .//img_ldc_0000.yuv
imgaddr_width = 1920
imgaddr_height = 1080
imgaddr_stride = 1920
width = 1920
height = 1080

    I suppose LDC output size is decided by "app_single_cam" while creating the LDC openvx node.

    If you need to modify LDC output size, you may have to change the LDC node settings.

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Hi Gang

    That's my mistake.

    RAW file name .//img_0000.raw
    YUV file name .//img_viss_0000.yuv
    imgaddr_width = 1936
    imgaddr_height = 1096
    imgaddr_stride = 1936
    width = 1936
    height = 1096

    This is what i got.

    Then, I need to get 1920x1080 YUV to simulate LDC,

    Because, as i mentioned before, I can't use 1936x1096 YUV to simulate LDC on DCC tool

    because If I use the output XML code base, I only can get wrong preview.

    Can you give me more specific infornation about where i need to modify.

    1. How to get 1920x1080 YUV?

    2. If i need to modify LDC output, I only need to get new XML or i need to modify source code

    Thanks

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points
    Will Kang said:

    Then, I need to get 1920x1080 YUV to simulate LDC,

    Because, as i mentioned before, I can't use 1936x1096 YUV to simulate LDC on DCC tool

    Your LDC input is from VISS output and it should be 1936x1096.
    You should use 1936x1096 for LDC input in tuning tool as well.

    Will Kang said:

    because If I use the output XML code base, I only can get wrong preview.

    I suppose you should be able set LDC output size to 1936x1096 in tuning tool.

    Will Kang said:

    2. If i need to modify LDC output, I only need to get new XML or i need to modify source code

    If you use the single-cam app, please refer to "app_create_ldc(...)" in "app_single_cam_common.c".
    I believe "obj->ldc_out" is the LDC output image.

  • 0 in reply to Will Kang
    Prodigy 125 points

    Hi Gang

    We saw some DCC XML parameters were written app_single_cam_common.h

    #define LDC_TABLE_WIDTH (1920)
    #define LDC_TABLE_HEIGHT (1080)
    #define LDC_DS_FACTOR (2)
    #define LDC_BLOCK_WIDTH (64)
    #define LDC_BLOCK_HEIGHT (32)
    #define LDC_PIXEL_PAD (1)

    I am confused, if i want use DCC XML config, which app i need to use?

    Thanks

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points

    For VPAC tuning, the single-cam app is the simplest to use.

  • 0 in reply to Gang Hua
    Prodigy 125 points

    Hi Gang

    We modified app_single_cam_common.c and app_single_cam_main.c 

    It is worked

    Thank you

  • 0 in reply to Will Kang
    TI__Mastermind 49885 points

    Hi Will,

    Thanks for the update!

    Could you please confirm if the cause is the output image size?