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Diffstat (limited to '')
| -rw-r--r-- | src/aux.py | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -65,8 +65,11 @@ def linearly_interpolate_ramp(r, g, b): # TODO test, demo and document this small_, large_ = len(small) - 1, len(large) - 1 if large_ > small_: for i in range(len(large)): + # Scaling j = i * small_ / large_ + # Floor, weight, ceiling j, w, k = int(j), j % 1, min(int(j) + 1, small_) + # Interpolation large[i] = small[j] * (1 - w) + small[k] * w return (R, G, B) @@ -82,8 +85,11 @@ def functionise(rgb): def fcurve(R_curve, G_curve, B_curve): for curve, cur in curves(R_curve, G_curve, B_curve): for i in range(i_size): + # Nearest neighbour y = int(curve[i] * (len(cur) - 1) + 0.5) + # Truncation to actual neighbour y = min(max(0, y), len(cur) - 1) + # Remapping curve[i] = cur[y] return lambda : fcurve(*rgb) |