scheme: use material for colour gen

Replaces okolors
Also boost neutral chroma and all chroma

1 files changed, 104 insertions, 0 deletions

diff --git a/scheme/score.py b/scheme/score.py
new file mode 100755
index 0000000..00a6d53
--- /dev/null
+++ b/scheme/score.py
@@ -0,0 +1,104 @@
+#!/bin/python
+
+import sys
+
+from materialyoucolor.quantize import ImageQuantizeCelebi
+from materialyoucolor.hct import Hct
+from materialyoucolor.utils.math_utils import sanitize_degrees_int, difference_degrees
+from materialyoucolor.dislike.dislike_analyzer import DislikeAnalyzer
+
+
+class Score:
+    TARGET_CHROMA = 48.0
+    WEIGHT_PROPORTION = 0.7
+    WEIGHT_CHROMA_ABOVE = 0.3
+    WEIGHT_CHROMA_BELOW = 0.1
+    CUTOFF_CHROMA = 5.0
+    CUTOFF_EXCITED_PROPORTION = 0.01
+
+    def __init__(self):
+        pass
+
+    @staticmethod
+    def score(colors_to_population: dict) -> list[int]:
+        desired = 14
+        filter_enabled = True
+        dislike_filter = True
+
+        colors_hct = []
+        hue_population = [0] * 360
+        population_sum = 0
+
+        for rgb, population in colors_to_population.items():
+            hct = Hct.from_int(rgb)
+            colors_hct.append(hct)
+            hue = int(hct.hue)
+            hue_population[hue] += population
+            population_sum += population
+
+        hue_excited_proportions = [0.0] * 360
+
+        for hue in range(360):
+            proportion = hue_population[hue] / population_sum
+            for i in range(hue - 14, hue + 16):
+                neighbor_hue = int(sanitize_degrees_int(i))
+                hue_excited_proportions[neighbor_hue] += proportion
+
+        scored_hct = []
+        for hct in colors_hct:
+            hue = int(sanitize_degrees_int(round(hct.hue)))
+            proportion = hue_excited_proportions[hue]
+
+            if filter_enabled and (
+                hct.chroma < Score.CUTOFF_CHROMA
+                or proportion <= Score.CUTOFF_EXCITED_PROPORTION
+            ):
+                continue
+
+            proportion_score = proportion * 100.0 * Score.WEIGHT_PROPORTION
+            chroma_weight = (
+                Score.WEIGHT_CHROMA_BELOW
+                if hct.chroma < Score.TARGET_CHROMA
+                else Score.WEIGHT_CHROMA_ABOVE
+            )
+            chroma_score = (hct.chroma - Score.TARGET_CHROMA) * chroma_weight
+            score = proportion_score + chroma_score
+            scored_hct.append({"hct": hct, "score": score})
+
+        scored_hct.sort(key=lambda x: x["score"], reverse=True)
+
+        chosen_colors = []
+        for difference_degrees_ in range(90, 0, -1):
+            chosen_colors.clear()
+            for hct in [item["hct"] for item in scored_hct]:
+                duplicate_hue = any(
+                    difference_degrees(hct.hue, chosen_hct.hue) < difference_degrees_
+                    for chosen_hct in chosen_colors
+                )
+                if not duplicate_hue:
+                    chosen_colors.append(hct)
+                if len(chosen_colors) >= desired:
+                    break
+            if len(chosen_colors) >= desired:
+                break
+
+        colors = []
+
+        if dislike_filter:
+            for chosen_hct in chosen_colors:
+                chosen_colors[chosen_colors.index(chosen_hct)] = (
+                    DislikeAnalyzer.fix_if_disliked(chosen_hct)
+                )
+        for chosen_hct in chosen_colors:
+            colors.append(chosen_hct.to_int())
+        return colors
+
+
+if __name__ == "__main__":
+    img = sys.argv[1]
+
+    colours = ImageQuantizeCelebi(img, 1, 128)
+    colours = [Hct.from_int(c).to_rgba()[:3] for c in Score.score(colours)]
+
+    # print("".join(["\x1b[48;2;{};{};{}m   \x1b[0m".format(*colour) for colour in colours]))
+    print(" ".join(["{:02X}{:02X}{:02X}".format(*colour) for colour in colours]))