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avfilter/vf_pseudocolor: add spectral preset

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This commit is contained in:
Paul B Mahol 2022-11-03 13:41:58 +01:00
parent 89e3814569
commit 4dda3b1653
2 changed files with 11 additions and 1 deletions
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1
doc/filters.texi
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@ -18886,6 +18886,7 @@ Available LUTs:
@item nominal
@item preferred
@item total
@item spectral
@end table
@item opacity

11
libavfilter/vf_pseudocolor.c
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@ -67,6 +67,7 @@ enum Curves {
TURBO,
CIVIDIS,
SOLAR,
SPECTRAL,
NB_CURVES,
};
@ -85,6 +86,7 @@ enum Presets {
PRESET_NOMINAL,
PRESET_PREFERRED,
PRESET_TOTAL,
PRESET_SPECTRAL,
NB_PRESETS,
};
@ -174,6 +176,11 @@ static const Curve curves[] =
},
.offset = { 0., -9., 9. },
.fun = { solarfun, solarfun, solarfun }, },
[SPECTRAL] = {{
{ -1.6820e-15, 1.4982e-12, -5.0442e-10, 8.0490e-08, -6.1903e-06, 1.5821e-04, 6.4359e-03, 6.2887e-01 },
{ 1.2526e-15, -1.2203e-12, 4.7013e-10, -8.9360e-08, 8.3839e-06, -3.6642e-04, 1.4784e-02, -9.8075e-03 },
{ 1.4755e-15, -1.6765e-12, 7.3188e-10, -1.5522e-07, 1.6406e-05, -7.7883e-04, 1.4502e-02, 2.1597e-01 },
}, .fun = { limit, limit, limit }, },
};
static const Preset presets[] =
@ -191,7 +198,8 @@ static const Preset presets[] =
[PRESET_RANGE2] = { 5, spec2_range, NULL, spec2_fills },
[PRESET_SHADOWS] = { 2, shadows_range, NULL, shadows_fills },
[PRESET_HIGHLIGHTS] = { 3, highlights_range, NULL, highlights_fills },
[PRESET_SOLAR] = { 1, &full_range, &curves[SOLAR], NULL },
[PRESET_SOLAR] = { 1, &full_range, &curves[SOLAR], NULL },
[PRESET_SPECTRAL]= { 1, &full_range, &curves[SPECTRAL],NULL },
};
typedef struct PseudoColorContext {
@ -246,6 +254,7 @@ static const AVOption pseudocolor_options[] = {
{ "nominal", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_NOMINAL}, .flags=FLAGS, "preset" },
{ "preferred", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_PREFERRED},.flags=FLAGS,"preset" },
{ "total", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_TOTAL}, .flags=FLAGS, "preset" },
{ "spectral", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_SPECTRAL},.flags = FLAGS, "preset" },
{ "opacity", "set pseudocolor opacity",OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 1, .flags = FLAGS },
{ NULL }
};